Drugs Similar to EFAVIRENZ, EMTRICITABINE AND TENOFOVIR DISOPROXIL FUMARATE

Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are fixed-dose combination tablets containing EFV USP, FTC, and TDF. EFV, USP is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of EFV USP, 200 mg of FTC, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: carmine, colloidal silicon dioxide, crospovidone, hydroxypropyl cellulose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, poloxamer, polyethylene glycol, polyvinyl alcohol-partially hydrolyzed, povidone, sodium starch glycolate, talc, and titanium dioxide. Efavirenz, USP: EFV, USP is chemically described as (4 S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its structural formula is: C 14 H 9 ClF 3 NO 2 M.W. 315.68 Efavirenz, USP is a white to slightly pink crystalline powder. It is freely soluble in methanol and practically insoluble in water (less than 10 mcg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1- [ (2 R ,5 S )-2-(hydroxymethyl)-1,3-oxathiolan-5-yl ] cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has the following structural formula: C 8 H 10 FN 3 O 3 S M.W. 247.24 Emtricitabine is a white to off-white colored crystalline powder. It is freely soluble in water and in methanol. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9- [ ( R )-2 [[ bis [[ (isopropoxycarbonyl)oxy ] -methoxy ] phosphinyl ] methoxy ] propyl ] adenine fumarate. It has the following structural formula: C 19 H 30 N 5 O 10 P•C 4 H 4 O 4 M.W. 635.52 TDF is a white to off-white crystalline powder. It is practically insoluble in water. efavirenz structural formula emtricitabine structural formula tenofovir disoproxil fumarate structural formula

Efavirenz, emtricitabine and tenofovir disoproxil fumarate is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of EFV, 200 mg of FTC, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, and sodium lauryl sulfate. The tablets are film-coated with a coating material containing polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to off-white, crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (less than 10 mcg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1-(2 R ,5 S )-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24. It has the following structural formula: Emtricitabine is a white to off-white powder with a solubility of approximately 112 mg/mL in water at 25ºC. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9-[( R )-2[[bis[[(isopropoxycarbonyl)oxy]-methoxy]phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P • C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: TDF is a white to off-white crystalline powder with a solubility of 13.4 mg/mL in water at 25°C.

Efavirenz, emtricitabine and tenofovir disoproxil fumarate is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5'-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate are for oral administration. Each tablet contains 600 mg of EFV, 200 mg of FTC, and 300 mg of TDF (which is equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, pregrelatinised starch, sodium lauryl sulfate. The tablets are film coated with a coating material containing black iron oxide, polyethylene glycol, polyvinyl alcohol, red iron oxide, talc, and titanium dioxide. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1, 4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 C l F 3 NO 2 and its structural formula is: Efavirenz is a white to slightly pink crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (less than 10 μg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1-(2 R ,5 S )-[2(hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24. It has the following structural formula: Emtricitabine is a white to off-white crystalline powder with a solubility of approximately 112 mg/mL in water at 25 o C. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9-[(R)-2[[bis[[(isopropoxycarbonyl)oxy]methoxy]phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P•C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: TDF is a white to off-white crystalline powder with a solubility of 13.4 mg/mL in water at 25 °C. str1 str2 str3

Efavirenz, emtricitabine and tenofovir disoproxil fumarate is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of EFV, 200 mg of FTC, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, and sodium lauryl sulfate. The tablets are film-coated with a coating material containing polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to off-white, crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (less than 10 mcg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1-(2 R ,5 S )-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24. It has the following structural formula: Emtricitabine is a white to off-white powder with a solubility of approximately 112 mg/mL in water at 25ºC. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9-[( R )-2[[bis[[(isopropoxycarbonyl)oxy]-methoxy]phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P • C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: TDF is a white to off-white crystalline powder with a solubility of 13.4 mg/mL in water at 25°C. Efavirenz Chemical Structure Emitricitabine Chemical Structure Tenofovir Chemical Structure

Efavirenz, emtricitabine and tenofovir disoproxil fumarate is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of efavirenz USP, 200 mg of emtricitabine USP, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, and sodium lauryl sulfate. The film-coating contains polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to slightly pink crystalline powder with a molecular mass of 315.68. It is soluble in methanol and practically insoluble in water. Emtricitabine: The chemical name of FTC is 4-amino-5-fluoro-1-(2 R ,5 S )-2-hydroxymethyl)-1,3-oxathiolan-5-yl]2(1H)-pyrimidinone. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.25. It has the following structural formula: Emtricitabine USP is a white to off-white powder with freely soluble in water and in methanol. Practically insoluble in methylene chloride. Tenofovir DF: TDF is a fumaric acid salt of the bis-isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is [[(1R)-2-(6-amino-9H-purin-9-yl)-1-methylethoxy]methyl] phosphonic acid disoproxil fumarate. It has a molecular formula of C 19 H 30 N 5 O 10 P•C 4 H 4 O 4 and a molecular weight of 635.51. It has the following structural formula. TDF is a white to off-white crystalline powder with sparingly soluble in methanol and in ethanol. efavirenzstructure emtricitabinestructure tenofovirdfstructure

Efavirenz, Emtricitabine and Tenofovir disoproxil fumarate tablet is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5'‑monophosphate. Efavirenz, Emtricitabine and Tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of EFV, 200 mg of FTC, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: Croscarmellose sodium, hydroxypropyl cellulose, hypromellose, isopropyl alcohol, microcrystalline cellulose, magnesium stearate, red iron oxide, sodium lauryl sulfate. The tablets are film-coated with a coating material opadry AMB 80W54485 pink containing polyvinyl alcohol-part, hydrolyzed, titanium dioxide, talc, lecithin (soya), xanthan gum, iron oxide yellow, iron oxide red and opadry AMB 80W56843 brown containing polyvinyl alcohol-part, hydrolyzed, titanium dioxide, talc, lecithin (soya), xanthan gum, iron oxide red. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz is a white to slightly pink crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (less than 10 µg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1-(2 R ,5 S )-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24. It has the following structural formula: Emtricitabine is a white to off-white crystalline powder with a solubility of approximately 112 mg/mL in water at 25°C. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9-[( R )-2[[bis[[(isopropoxycarbonyl)oxy]-methoxy] phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P • C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: TDF is a white to off-white crystalline powder with a solubility of 13.4 mg/mL in water at 25°C. Image Image Image

Efavirenz, Emtricitabine and Tenofovir disoproxil fumarate tablet is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5'‑monophosphate. Efavirenz, Emtricitabine and Tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of EFV, 200 mg of FTC, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: Croscarmellose sodium, hydroxypropyl cellulose, hypromellose, isopropyl alcohol, microcrystalline cellulose, magnesium stearate, red iron oxide, sodium lauryl sulfate. The tablets are film-coated with a coating material opadry AMB 80W54485 pink containing polyvinyl alcohol-part, hydrolyzed, titanium dioxide, talc, lecithin (soya), xanthan gum, iron oxide yellow, iron oxide red and opadry AMB 80W56843 brown containing polyvinyl alcohol-part, hydrolyzed, titanium dioxide, talc, lecithin (soya), xanthan gum, iron oxide red. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz is a white to slightly pink crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (less than 10 µg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1-(2 R ,5 S )-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24. It has the following structural formula: Emtricitabine is a white to off-white crystalline powder with a solubility of approximately 112 mg/mL in water at 25°C. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9-[( R )-2[[bis[[(isopropoxycarbonyl)oxy]-methoxy] phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P • C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: TDF is a white to off-white crystalline powder with a solubility of 13.4 mg/mL in water at 25°C. Image Image Image

Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are fixed-dose combination tablets containing EFV USP, FTC, and TDF. EFV, USP is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of EFV USP, 200 mg of FTC, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: carmine, colloidal silicon dioxide, crospovidone, hydroxypropyl cellulose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, poloxamer, polyethylene glycol, polyvinyl alcohol-partially hydrolyzed, povidone, sodium starch glycolate, talc, and titanium dioxide. Efavirenz, USP: EFV, USP is chemically described as (4 S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its structural formula is: C 14 H 9 ClF 3 NO 2 M.W. 315.68 Efavirenz, USP is a white to slightly pink crystalline powder. It is freely soluble in methanol and practically insoluble in water (less than 10 mcg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1- [ (2 R ,5 S )-2-(hydroxymethyl)-1,3-oxathiolan-5-yl ] cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has the following structural formula: C 8 H 10 FN 3 O 3 S M.W. 247.24 Emtricitabine is a white to off-white colored crystalline powder. It is freely soluble in water and in methanol. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9- [ ( R )-2 [[ bis [[ (isopropoxycarbonyl)oxy ] -methoxy ] phosphinyl ] methoxy ] propyl ] adenine fumarate. It has the following structural formula: C 19 H 30 N 5 O 10 P•C 4 H 4 O 4 M.W. 635.52 TDF is a white to off-white crystalline powder. It is practically insoluble in water. efavirenz structural formula emtricitabine structural formula tenofovir disoproxil fumarate structural formula

Efavirenz, emtricitabine and tenofovir disoproxil fumarate is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5'-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate are for oral administration. Each tablet contains 600 mg of EFV, 200 mg of FTC, and 300 mg of TDF (which is equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, pregrelatinised starch, sodium lauryl sulfate. The tablets are film coated with a coating material containing black iron oxide, polyethylene glycol, polyvinyl alcohol, red iron oxide, talc, and titanium dioxide. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1, 4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 C l F 3 NO 2 and its structural formula is: Efavirenz is a white to slightly pink crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (less than 10 μg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1-(2 R ,5 S )-[2(hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24. It has the following structural formula: Emtricitabine is a white to off-white crystalline powder with a solubility of approximately 112 mg/mL in water at 25 o C. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9-[(R)-2[[bis[[(isopropoxycarbonyl)oxy]methoxy]phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P•C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: TDF is a white to off-white crystalline powder with a solubility of 13.4 mg/mL in water at 25 °C. str1 str2 str3

Efavirenz, emtricitabine and tenofovir disoproxil fumarate is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of EFV, 200 mg of FTC, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, and sodium lauryl sulfate. The tablets are film-coated with a coating material containing polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to off-white, crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (less than 10 mcg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1-(2 R ,5 S )-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24. It has the following structural formula: Emtricitabine is a white to off-white powder with a solubility of approximately 112 mg/mL in water at 25ºC. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9-[( R )-2[[bis[[(isopropoxycarbonyl)oxy]-methoxy]phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P • C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: TDF is a white to off-white crystalline powder with a solubility of 13.4 mg/mL in water at 25°C. Efavirenz Chemical Structure Emitricitabine Chemical Structure Tenofovir Chemical Structure

Efavirenz, emtricitabine and tenofovir disoproxil fumarate is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of EFV, 200 mg of FTC, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, and sodium lauryl sulfate. The tablets are film-coated with a coating material containing polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to off-white, crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (less than 10 mcg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1-(2 R ,5 S )-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24. It has the following structural formula: Emtricitabine is a white to off-white powder with a solubility of approximately 112 mg/mL in water at 25ºC. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9-[( R )-2[[bis[[(isopropoxycarbonyl)oxy]-methoxy]phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P • C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: TDF is a white to off-white crystalline powder with a solubility of 13.4 mg/mL in water at 25°C.

Efavirenz, emtricitabine and tenofovir disoproxil fumarate is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of efavirenz USP, 200 mg of emtricitabine USP, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, and sodium lauryl sulfate. The film-coating contains polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to slightly pink crystalline powder with a molecular mass of 315.68. It is soluble in methanol and practically insoluble in water. Emtricitabine: The chemical name of FTC is 4-amino-5-fluoro-1-(2 R ,5 S )-2-hydroxymethyl)-1,3-oxathiolan-5-yl]2(1H)-pyrimidinone. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.25. It has the following structural formula: Emtricitabine USP is a white to off-white powder with freely soluble in water and in methanol. Practically insoluble in methylene chloride. Tenofovir DF: TDF is a fumaric acid salt of the bis-isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is [[(1R)-2-(6-amino-9H-purin-9-yl)-1-methylethoxy]methyl] phosphonic acid disoproxil fumarate. It has a molecular formula of C 19 H 30 N 5 O 10 P•C 4 H 4 O 4 and a molecular weight of 635.51. It has the following structural formula. TDF is a white to off-white crystalline powder with sparingly soluble in methanol and in ethanol. efavirenzstructure emtricitabinestructure tenofovirdfstructure

BIKTARVY (bictegravir, emtricitabine, and tenofovir alafenamide) is a fixed dose combination tablet containing bictegravir (BIC), emtricitabine (FTC), and tenofovir alafenamide (TAF) for oral administration. BIC is an integrase strand transfer inhibitor (INSTI). FTC, a synthetic nucleoside analog of cytidine, is an HIV nucleoside analog reverse transcriptase inhibitor (HIV NRTI). TAF, an HIV NRTI, is converted in vivo to tenofovir, an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. BIKTARVY tablets are available in two dose strengths: 50 mg/200 mg/25 mg tablet containing 50 mg of BIC (equivalent to 52.5 mg of bictegravir sodium), 200 mg of FTC, and 25 mg of TAF (equivalent to 28 mg of tenofovir alafenamide fumarate). 30 mg/120 mg/15 mg tablet containing 30 mg of BIC (equivalent to 31.5 mg of bictegravir sodium), 120 mg of FTC, and 15 mg of TAF (equivalent to 16.8 mg of tenofovir alafenamide fumarate). Both dose strengths of BIKTARVY tablets include the following inactive ingredients: croscarmellose sodium, magnesium stearate, and microcrystalline cellulose. The tablets for both dose strengths are film-coated with a coating material containing iron oxide black, iron oxide red, polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. Bictegravir: The chemical name of bictegravir sodium is 2,5-Methanopyrido[1',2':4,5]pyrazino[2,1- b ][1,3]oxazepine-10-carboxamide, 2,3,4,5,7,9,13,13a-octahydro-8-hydroxy-7,9-dioxo- N -[(2,4,6-trifluorophenyl)methyl]-, sodium salt (1:1), (2 R ,5 S ,13a R )-. Bictegravir sodium has a molecular formula of C 21 H 17 F 3 N 3 NaO 5 and a molecular weight of 471.4 and has the following structural formula: Bictegravir sodium is an off-white to yellow solid with a solubility of 0.1 mg per mL in water at 20 °C. Chemical Structure Emtricitabine: The chemical name of FTC is 4-amino-5-fluoro-1-(2 R -hydroxymethyl-1,3-oxathiolan-5 S -yl)-(1H)-pyrimidin-2-one. FTC is the (-)enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5 position. FTC has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.2 and has the following structural formula: FTC is a white to off-white powder with a solubility of approximately 112 mg per mL in water at 25 °C. Chemical Structure Tenofovir alafenamide: The chemical name of tenofovir alafenamide fumarate drug substance is L-alanine, N -[( S )-[[(1 R )-2-(6-amino-9 H -purin-9-yl)-1-methylethoxy]methyl]phenoxyphosphinyl]-, 1-methylethyl ester, (2 E )-2-butenedioate (2:1). Tenofovir alafenamide fumarate has an empirical formula of C 21 H 29 O 5 N 6 P∙½(C 4 H 4 O 4 ) and a formula weight of 534.5 and has the following structural formula: Tenofovir alafenamide fumarate is a white to off-white or tan powder with a solubility of 4.7 mg per mL in water at 20 °C. Chemical Structure

BIKTARVY (bictegravir, emtricitabine, and tenofovir alafenamide) is a fixed dose combination tablet containing bictegravir (BIC), emtricitabine (FTC), and tenofovir alafenamide (TAF) for oral administration. BIC is an integrase strand transfer inhibitor (INSTI). FTC, a synthetic nucleoside analog of cytidine, is an HIV nucleoside analog reverse transcriptase inhibitor (HIV NRTI). TAF, an HIV NRTI, is converted in vivo to tenofovir, an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. BIKTARVY tablets are available in two dose strengths: 50 mg/200 mg/25 mg tablet containing 50 mg of BIC (equivalent to 52.5 mg of bictegravir sodium), 200 mg of FTC, and 25 mg of TAF (equivalent to 28 mg of tenofovir alafenamide fumarate). 30 mg/120 mg/15 mg tablet containing 30 mg of BIC (equivalent to 31.5 mg of bictegravir sodium), 120 mg of FTC, and 15 mg of TAF (equivalent to 16.8 mg of tenofovir alafenamide fumarate). Both dose strengths of BIKTARVY tablets include the following inactive ingredients: croscarmellose sodium, magnesium stearate, and microcrystalline cellulose. The tablets for both dose strengths are film-coated with a coating material containing iron oxide black, iron oxide red, polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. Bictegravir: The chemical name of bictegravir sodium is 2,5-Methanopyrido[1’,2’:4,5]pyrazino[2,1- b ][1,3]oxazepine-10-carboxamide, 2,3,4,5,7,9,13,13a-octahydro-8-hydroxy-7,9-dioxo- N -[(2,4,6-trifluorophenyl)methyl]-, sodium salt (1:1), (2 R ,5 S ,13a R )-. Bictegravir sodium has a molecular formula of C 21 H 17 F 3 N 3 NaO 5 and a molecular weight of 471.4 and has the following structural formula: Bictegravir sodium is an off-white to yellow solid with a solubility of 0.1 mg per mL in water at 20 °C. Chemical Structure Emtricitabine: The chemical name of FTC is 4-amino-5-fluoro-1-(2 R -hydroxymethyl-1,3-oxathiolan-5 S -yl)-(1H)-pyrimidin-2-one. FTC is the (-)enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5 position. FTC has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.2 and has the following structural formula: FTC is a white to off-white powder with a solubility of approximately 112 mg per mL in water at 25 °C. Chemical Structure Tenofovir alafenamide: The chemical name of tenofovir alafenamide fumarate drug substance is L-alanine, N -[( S )-[[(1 R )-2-(6-amino-9 H -purin-9-yl)-1-methylethoxy]methyl]phenoxyphosphinyl]-, 1-methylethyl ester, (2 E )-2-butenedioate (2:1). Tenofovir alafenamide fumarate has an empirical formula of C 21 H 29 O 5 N 6 P•½(C 4 H 4 O 4 ) and a formula weight of 534.5 and has the following structural formula: Tenofovir alafenamide fumarate is a white to off-white or tan powder with a solubility of 4.7 mg per mL in water at 20 °C. Chemical Structure

CIMDUO tablets contain lamivudine (also known as 3TC), a synthetic nucleoside analogue with activity against HIV-1 and tenofovir disoproxil fumarate or tenofovir DF, a fumaric acid salt of bis-isopropoxycarbonyloxymethyl ester prodrug of tenofovir. In vivo tenofovir DF is converted to tenofovir, an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5’-monophosphate. Tenofovir exhibits activity against HIV-1 reverse transcriptase. The chemical name of lamivudine is (-)-1-[2 R ,5 S ) - 2-Hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. Lamivudine is the (-)enantiomer of a dideoxy analogue of cytidine. Lamivudine has also been referred to as (-)2′,3′-dideoxy, 3′-thiacytidine. It has a molecular formula of C 8 H 11 N 3 O 3 S and a molecular weight of 229.26 g per mol. It has the following structural formula: Lamivudine is a white to off-white solid with a solubility of approximately 70 mg per mL in water at 20°C. The chemical name of tenofovir DF is 9-[(R)-2-[[Bis[[(isopropoxycarbonyl)oxy]methoxy]phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P•C 4 H 4 O 4 and a molecular weight of 635.51. It has the following structural formula: Tenofovir DF is a white to off-white powder with a solubility of 13.4 mg/mL in distilled water at 25°C. It has an octanol/phosphate buffer (pH 6.5) partition coefficient (log p) of 1.25 at 25°C. CIMDUO tablets are for oral administration. Each film-coated tablet contains 300 mg of lamivudine and 300 mg of tenofovir disoproxil fumarate, which is equivalent to 245 mg of tenofovir disoproxil, and the following inactive ingredients: croscarmellose sodium, lactose monohydrate, magnesium stearate and microcrystalline cellulose. The tablet coating contains polyethylene glycol, titanium dioxide, polyvinyl alcohol and talc. Lamivudine Structural Formula Tenofovir Structural Formula

COMPLERA is a fixed-dose combination tablet containing FTC, rilpivirine hydrochloride, and TDF. Emtricitabine (FTC) is a synthetic nucleoside analog of cytidine. Rilpivirine (RPV) is a non-nucleoside reverse transcriptase inhibitor. Tenofovir disoproxil fumarate (TDF) is converted in vivo to tenofovir, an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. COMPLERA tablets are for oral administration. Each tablet contains 200 mg of FTC, 27.5 mg of rilpivirine hydrochloride (equivalent to 25 mg of RPV), and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: croscarmellose sodium, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polysorbate 20, povidone, pregelatinized starch. The tablets are film coated with a coating material containing FD&C Blue #2 aluminum lake, FD&C Yellow #6 aluminum lake, hypromellose, iron oxide red, lactose monohydrate, polyethylene glycol, titanium dioxide, triacetin. Emtricitabine: The chemical name of FTC is 5-fluoro-1-[(2 R ,5 S )-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. Emtricitabine is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24. It has the following structural formula: FTC is a white to off-white crystalline powder with a solubility of approximately 112 mg per mL in water at 25 °C. Chemical Structure Rilpivirine: RPV is available as the hydrochloride salt. The chemical name for rilpivirine hydrochloride is 4-[[4-[[4-[(E)-2-cyanoethenyl]-2,6-dimethylphenyl]amino]-2-pyrimidinyl]amino]benzonitrile monohydrochloride. Its molecular formula is C 22 H 18 N 6 ∙ HCl and its molecular weight is 402.88. Rilpivirine hydrochloride has the following structural formula: Rilpivirine hydrochloride is a white to almost white powder. Rilpivirine hydrochloride is practically insoluble in water over a wide pH range. Chemical Structure Tenofovir DF: TDF is a fumaric acid salt of the bis-isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9-[( R )-2 [[bis[[(isopropoxycarbonyl)oxy]- methoxy]phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P ∙ C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: TDF is a white to off-white crystalline powder with a solubility of 13.4 mg per mL in water at 25 °C. All dosages are expressed in terms of TDF except where otherwise noted. Chemical Structure

DELSTRIGO is a fixed-dose combination, film-coated tablet, containing doravirine, lamivudine, and TDF for oral administration. Doravirine is an HIV-1 non-nucleoside reverse transcriptase inhibitor (NNRTI). Lamivudine is the (-)enantiomer of a dideoxy analogue of cytidine and is an HIV-1 nucleoside analogue reverse transcriptase inhibitor. TDF (a prodrug of tenofovir) is a fumaric acid salt of the bis-isopropoxycarbonyloxymethyl ester derivative of tenofovir. In vivo TDF is converted to tenofovir, an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5'-monophosphate. Tenofovir is an HIV-1 reverse transcriptase inhibitor. Each tablet contains 100 mg of doravirine, 300 mg of lamivudine, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, hypromellose acetate succinate, magnesium stearate, microcrystalline cellulose, and sodium stearyl fumarate. The tablets are film coated with a coating material containing the following inactive ingredients: hypromellose, iron oxide yellow, lactose monohydrate, titanium dioxide, and triacetin. The coated tablets are polished with carnauba wax. Doravirine : The chemical name for doravirine is 3-chloro-5-[[1-[(4,5-dihydro-4-methyl-5-oxo-1 H -1,2,4-triazol-3-yl)methyl]-1,2-dihydro-2-oxo-4-(trifluoromethyl)-3-pyridinyl]oxy]benzonitrile. It has a molecular formula of C 17 H 11 ClF 3 N 5 O 3 and a molecular weight of 425.75. It has the following structural formula: Doravirine is practically insoluble in water. Chemical Structure Lamivudine : The chemical name for lamivudine is (-)-1-[(2 R ,5 S )-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-cytosine. It has a molecular formula of C 8 H 11 N 3 O 3 S and a molecular weight of 229.26. It has the following structural formula: Lamivudine is soluble in water. Chemical Structure TDF : The chemical name for TDF is 9-[(R)-2-[[bis[[(isopropoxycarbonyl)oxy]methoxy] phosphinyl]- methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P∙C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: TDF is slightly soluble in water. Chemical Structure

DESCOVY (emtricitabine and tenofovir alafenamide) is a fixed dose combination tablet containing emtricitabine (FTC) and tenofovir alafenamide (TAF) for oral administration. FTC, a synthetic nucleoside analog of cytidine, is an HIV nucleoside analog reverse transcriptase inhibitor (HIV NRTI). TAF, an HIV NRTI, is converted in vivo to tenofovir, an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. DESCOVY tablets are available in two dose strengths: 200 mg/25 mg tablets: 200 mg of FTC and 25 mg of TAF (equivalent to 28 mg of tenofovir alafenamide fumarate). 120 mg/15 mg tablets: 120 mg of FTC and 15 mg of TAF (equivalent to 16.8 mg of tenofovir alafenamide fumarate). Both dose strengths of DESCOVY tablets include the following inactive ingredients: croscarmellose sodium, magnesium stearate, and microcrystalline cellulose. The 200 mg/ 25 mg tablets are film-coated with a coating material containing indigo carmine aluminum lake, polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. The 120 mg/15 mg tablets are film-coated with a coating material containing polyvinyl alcohol, titanium dioxide, polyethylene glycol, and talc. Emtricitabine: The chemical name of FTC is 4-amino-5-fluoro-1-(2 R -hydroxymethyl-1,3-oxathiolan-5 S -yl)-(1H)-pyrimidin-2-one. FTC is the (-)enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5 position. FTC has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24 and has the following structural formula: FTC is a white to off-white powder with a solubility of approximately 112 mg per mL in water at 25 °C. Chemical Structure Tenofovir Alafenamide: The chemical name of tenofovir alafenamide fumarate drug substance is L-alanine, N -[( S )-[[(1 R )-2-(6-amino-9 H -purin-9-yl)-1-methylethoxy]methyl]phenoxyphosphinyl]-, 1-methylethyl ester, (2 E )-2-butenedioate (2:1). Tenofovir alafenamide fumarate has an empirical formula of C 21 H 29 O 5 N 6 P•½(C 4 H 4 O 4 ) and a formula weight of 534.50 and has the following structural formula: Tenofovir alafenamide fumarate is a white to off-white or tan powder with a solubility of 4.7 mg per mL in water at 20 °C. Chemical Structure

Efavirenz is an HIV-1 specific, non-nucleoside, reverse transcriptase inhibitor (NNRTI). Efavirenz is chemically described as (S)-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to off-white crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (<10 microgram/mL). Efavirenz is available as capsules for oral administration containing either 50 mg, 100 mg, or 200 mg of efavirenz USP and the following inactive ingredients: lactose monohydrate, magnesium stearate, sodium lauryl sulfate and sodium starch glycolate (potato). The capsule shell contains gelatin, silicon dioxide and sodium lauryl sulfate. In addition 50 mg contains titanium dioxide and yellow iron oxide, 100 mg contains titanium dioxide and 200 mg contains yellow iron oxide. The capsules are printed with edible ink containing black iron oxide and shellac. structure

Efavirenz is an HIV-1 specific, non-nucleoside, reverse transcriptase inhibitor (NNRTI). Efavirenz is chemically described as (S)-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to off-white, crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (<10 microgram/mL). Efavirenz is available as film-coated tablets for oral administration containing 600 mg of efavirenz USP and the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and sodium lauryl sulfate. The film coating contains hypromellose, polyethylene glycol, titanium dioxide, and yellow iron oxide. Chemical Structure

Efavirenz is an HIV-1 specific, non-nucleoside, reverse transcriptase inhibitor (NNRTI). Efavirenz is chemically described as (S)-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one. Its empirical formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz is a white to slightly pink crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (<10 microgram/mL). Tablets: Efavirenz tablets, USP is available as film-coated tablets for oral administration containing 600 mg of efavirenz and the following inactive ingredients: Lactose monohydrate, croscarmellose sodium, povidone, anhydrous dibasic calcium phosphate, magnesium stearate. The film coating contains opadry yellow (consist of hypromellose, titanium dioxide, macrogol, iron oxide yellow). Efavirenz

Efavirenz is an HIV-1 specific, non-nucleoside, reverse transcriptase inhibitor (NNRTI). Efavirenz USP is chemically described as (S)-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one. Its empirical formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to slightly pink crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (<10 microgram/mL). Tablets: Efavirenz are available as film-coated tablets for oral administration containing 600 mg of efavirenz USP and the following inactive ingredients: microcrystalline cellulose, sodium lauryl sulfate, croscarmellose sodium, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate. The film coating contains Opadry® Yellow (hypromellose, titanium dioxide, iron oxide yellow and polyethylene glycol). Efavirenzstructure

Efavirenz, USP is an HIV-1 specific, non-nucleoside, reverse transcriptase inhibitor (NNRTI). Efavirenz is chemically described as(S)-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro4(trifluoromethyl)-2H-3,1-benzoxazin-2-one. Its empirical formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz,USP is a white to slightly pink crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (<10 microgram/mL). Tablets : Efavirenz USP is available as film-coated tablets for oral administration containing 600 mg of efavirenz and the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and sodium lauryl sulfate. The film coating contains Opadry Yellow,consisting of hydroxypropylmethyl cellulose, titanium dioxide, polyethylene glycol and iron oxide yellow. efavirenz-structure

Efavirenz is an HIV-1 specific, non-nucleoside, reverse transcriptase inhibitor (NNRTI). Efavirenz is chemically described as (S)-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one. Its empirical formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to slightly pink crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (<10 microgram/mL). Tablets: Efavirenz is available as film-coated tablets for oral administration containing 600 mg of efavirenz USP and the following inactive ingredients: microcrystalline cellulose, sodium lauryl sulfate, croscarmellose sodium, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate. The film coating contains Opadry ® Yellow (hypromellose, titanium dioxide, iron oxide yellow and polyethylene glycol). efavirenz-structure

Efavirenz, emtricitabine and tenofovir disoproxil fumarate is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of EFV, 200 mg of FTC, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, and sodium lauryl sulfate. The tablets are film-coated with a coating material containing polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to off-white, crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (less than 10 mcg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1-(2 R ,5 S )-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24. It has the following structural formula: Emtricitabine is a white to off-white powder with a solubility of approximately 112 mg/mL in water at 25ºC. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9-[( R )-2[[bis[[(isopropoxycarbonyl)oxy]-methoxy]phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P • C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: TDF is a white to off-white crystalline powder with a solubility of 13.4 mg/mL in water at 25°C.

Efavirenz, emtricitabine and tenofovir disoproxil fumarate is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of efavirenz USP, 200 mg of emtricitabine USP, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, and sodium lauryl sulfate. The film-coating contains polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to slightly pink crystalline powder with a molecular mass of 315.68. It is soluble in methanol and practically insoluble in water. Emtricitabine: The chemical name of FTC is 4-amino-5-fluoro-1-(2 R ,5 S )-2-hydroxymethyl)-1,3-oxathiolan-5-yl]2(1H)-pyrimidinone. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.25. It has the following structural formula: Emtricitabine USP is a white to off-white powder with freely soluble in water and in methanol. Practically insoluble in methylene chloride. Tenofovir DF: TDF is a fumaric acid salt of the bis-isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is [[(1R)-2-(6-amino-9H-purin-9-yl)-1-methylethoxy]methyl] phosphonic acid disoproxil fumarate. It has a molecular formula of C 19 H 30 N 5 O 10 P•C 4 H 4 O 4 and a molecular weight of 635.51. It has the following structural formula. TDF is a white to off-white crystalline powder with sparingly soluble in methanol and in ethanol. efavirenzstructure emtricitabinestructure tenofovirdfstructure

Efavirenz, Emtricitabine and Tenofovir disoproxil fumarate tablet is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5'‑monophosphate. Efavirenz, Emtricitabine and Tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of EFV, 200 mg of FTC, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: Croscarmellose sodium, hydroxypropyl cellulose, hypromellose, isopropyl alcohol, microcrystalline cellulose, magnesium stearate, red iron oxide, sodium lauryl sulfate. The tablets are film-coated with a coating material opadry AMB 80W54485 pink containing polyvinyl alcohol-part, hydrolyzed, titanium dioxide, talc, lecithin (soya), xanthan gum, iron oxide yellow, iron oxide red and opadry AMB 80W56843 brown containing polyvinyl alcohol-part, hydrolyzed, titanium dioxide, talc, lecithin (soya), xanthan gum, iron oxide red. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz is a white to slightly pink crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (less than 10 µg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1-(2 R ,5 S )-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24. It has the following structural formula: Emtricitabine is a white to off-white crystalline powder with a solubility of approximately 112 mg/mL in water at 25°C. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9-[( R )-2[[bis[[(isopropoxycarbonyl)oxy]-methoxy] phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P • C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: TDF is a white to off-white crystalline powder with a solubility of 13.4 mg/mL in water at 25°C. Image Image Image

Efavirenz, emtricitabine and tenofovir disoproxil fumarate is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5'-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate are for oral administration. Each tablet contains 600 mg of EFV, 200 mg of FTC, and 300 mg of TDF (which is equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, pregrelatinised starch, sodium lauryl sulfate. The tablets are film coated with a coating material containing black iron oxide, polyethylene glycol, polyvinyl alcohol, red iron oxide, talc, and titanium dioxide. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1, 4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 C l F 3 NO 2 and its structural formula is: Efavirenz is a white to slightly pink crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (less than 10 μg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1-(2 R ,5 S )-[2(hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24. It has the following structural formula: Emtricitabine is a white to off-white crystalline powder with a solubility of approximately 112 mg/mL in water at 25 o C. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9-[(R)-2[[bis[[(isopropoxycarbonyl)oxy]methoxy]phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P•C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: TDF is a white to off-white crystalline powder with a solubility of 13.4 mg/mL in water at 25 °C. str1 str2 str3

Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are fixed-dose combination tablets containing EFV USP, FTC, and TDF. EFV, USP is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of EFV USP, 200 mg of FTC, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: carmine, colloidal silicon dioxide, crospovidone, hydroxypropyl cellulose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, poloxamer, polyethylene glycol, polyvinyl alcohol-partially hydrolyzed, povidone, sodium starch glycolate, talc, and titanium dioxide. Efavirenz, USP: EFV, USP is chemically described as (4 S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its structural formula is: C 14 H 9 ClF 3 NO 2 M.W. 315.68 Efavirenz, USP is a white to slightly pink crystalline powder. It is freely soluble in methanol and practically insoluble in water (less than 10 mcg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1- [ (2 R ,5 S )-2-(hydroxymethyl)-1,3-oxathiolan-5-yl ] cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has the following structural formula: C 8 H 10 FN 3 O 3 S M.W. 247.24 Emtricitabine is a white to off-white colored crystalline powder. It is freely soluble in water and in methanol. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9- [ ( R )-2 [[ bis [[ (isopropoxycarbonyl)oxy ] -methoxy ] phosphinyl ] methoxy ] propyl ] adenine fumarate. It has the following structural formula: C 19 H 30 N 5 O 10 P•C 4 H 4 O 4 M.W. 635.52 TDF is a white to off-white crystalline powder. It is practically insoluble in water. efavirenz structural formula emtricitabine structural formula tenofovir disoproxil fumarate structural formula

Efavirenz, emtricitabine and tenofovir disoproxil fumarate is a fixed-dose combination tablet containing EFV, FTC, and TDF. EFV is a non-nucleoside reverse transcriptase inhibitor (NNRTI). FTC is a synthetic nucleoside analog of cytidine. TDF, which is converted in vivo to tenofovir, is an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′-monophosphate. Efavirenz, emtricitabine and tenofovir disoproxil fumarate tablets are for oral administration. Each tablet contains 600 mg of EFV, 200 mg of FTC, and 300 mg of TDF (equivalent to 245 mg of tenofovir disoproxil) as active ingredients. The tablets include the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, and sodium lauryl sulfate. The tablets are film-coated with a coating material containing polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. Efavirenz: EFV is chemically described as ( S )-6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to off-white, crystalline powder with a molecular mass of 315.68. It is practically insoluble in water (less than 10 mcg/mL). Emtricitabine: The chemical name of FTC is 5-fluoro-1-(2 R ,5 S )-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C 8 H 10 FN 3 O 3 S and a molecular weight of 247.24. It has the following structural formula: Emtricitabine is a white to off-white powder with a solubility of approximately 112 mg/mL in water at 25ºC. Tenofovir DF: TDF is a fumaric acid salt of the bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. The chemical name of TDF is 9-[( R )-2[[bis[[(isopropoxycarbonyl)oxy]-methoxy]phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P • C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: TDF is a white to off-white crystalline powder with a solubility of 13.4 mg/mL in water at 25°C. Efavirenz Chemical Structure Emitricitabine Chemical Structure Tenofovir Chemical Structure

Efavirenz, lamivudine and tenofovir disoproxil fumarate tablets contain efavirenz (EFV), an HIV-1 specific, non-nucleoside, reverse transcriptase inhibitor (NNRTI), lamivudine (also known as 3TC), a synthetic nucleoside analogue with activity against HIV-1 and tenofovir disoproxil fumarate (TDF) (a prodrug of tenofovir), a fumaric acid salt of bis-isopropoxycarbonyloxymethyl ester derivative of tenofovir. TDF is converted in vivo to tenofovir, an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5'-monophosphate. Tenofovir exhibits activity against HIV-1 reverse transcriptase. Efavirenz, lamivudine and tenofovir disoproxil fumarate tablets are for oral administration. Each film coated tablet contains efavirenz USP 600 mg, lamivudine USP 300 mg and tenofovir disoproxil fumarate 300 mg equivalent to tenofovir disoproxil 245 mg, and the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, lactose anhydrous, magnesium stearate, microcrystalline cellulose, pregelatinized starch, polyethylene glycol, polyvinyl alcohol, sodium lauryl sulfate, talc and titanium dioxide. Efavirenz: The chemical name of efavirenz is ( S )-6-Chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to off white powder with a molecular mass of 315.67. It is soluble in methanol and practically insoluble in water (< 10 microgram/mL). Lamivudine: The chemical name of lamivudine is (-)-1-[(2 R ,5 S )-2-(Hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine. Lamivudine is the (-)enantiomer of a dideoxy analogue of cytidine. Lamivudine has also been referred to as (-)2′,3′-dideoxy, 3′-thiacytidine. It has a molecular formula of C 8 H 11 N 3 O 3 S and a molecular weight of 229.26 g per mol. It has the following structural formula: Lamivudine USP is a white or almost white powder and is soluble in water. Tenofovir Disoproxil Fumarate: The chemical name of tenofovir DF is 9-[(R)-2- [[bis[[(isopropoxycarbonyl)oxy]methoxy]phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P•C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: Tenofovir DF is a white to off white powder freely soluble in dimethyl formamide, soluble in methanol and slightly soluble in water at 25°C. It has a partition coefficient (log p) of 0.75. Efavirenz Chemical Structure Lamivudine Chemical Structure Tenofovir Chemical Structure

Efavirenz, lamivudine and tenofovir disoproxil fumarate is a fixed-dose combination tablet for oral administration. Each film coated tablet contains efavirenz USP 400 mg, lamivudine USP 300 mg and tenofovir disoproxil fumarate 300 mg equivalent to tenofovir disoproxil 245 mg. Each tablet contains the following inactive ingredients: croscarmellose sodium, ferric oxide yellow, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, sodium lauryl sulfate, talc and titanium dioxide. Efavirenz: Efavirenz (EFV) is an HIV-1 specific, non-nucleoside, reverse transcriptase inhibitor (NNRTI). Efavirenz is chemically described as ( S )-6-Chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2 H -3,1-benzoxazin-2-one. Its molecular formula is C 14 H 9 ClF 3 NO 2 and its structural formula is: Efavirenz USP is a white to off white powder with a molecular mass of 315.67. It is soluble in methanol and practically insoluble in water (< 10 microgram/mL). Lamivudine: Lamivudine (also known as 3TC) is a synthetic nucleoside analogue with activity against HIV-1 and HBV.The chemical name of lamivudine is (-)-1-[(2 R ,5 S )-2-(Hydroxy methyl)-1,3-oxathiolan-5-yl]cytosine. Lamivudine is the (-)enantiomer of a dideoxy analogue of cytidine. Lamivudine has also been referred to as (-)2′,3′-dideoxy, 3′-thiacytidine. It has a molecular formula of C 8 H 11 N 3 O 3 S and a molecular weight of 229.26 g per mol. It has the following structural formula: Lamivudine USP is a white or almost white powder and is soluble in water. Tenofovir Disoproxil Fumarate: Tenofovir disoproxil fumarate (TDF) (a prodrug of tenofovir) is a fumaric acid salt of bis-isopropoxycarbonyloxymethyl ester derivative of tenofovir. TDF is converted in vivo to tenofovir , an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5' -monophosphate. Tenofovir exhibits activity against HIV-1 reverse transcriptase. The chemical name of tenofovir disoproxil fumarateis 9-[( R )-2- [[bis[[(isopropoxycarbonyl)oxy]methoxy]phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P•C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: Tenofovir disoproxil fumarate is a white to off white powder freely soluble in dimethyl formamide, soluble in methanol and slightly soluble in water at 25°C. It has a partition coefficient (log p) of 0.75. efavirenz-structure lamivudine-structure tenofovir-structure