preferred pharmaceuticals inc. - Medication Listings

Metformin hydrochloride tablets, USP contain the antihyperglycemic agent metformin, which is a biguanide, in the form of monohydrochloride. The chemical name of metformin hydrochloride is N,N- dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown below: Metformin hydrochloride, USP is a white to off-white crystalline compound with a molecular formula of C 4 H 11 N 5 • HCl and a molecular weight of 165.63. Metformin hydrochloride is freely soluble in water, slightly soluble in alcohol, practically insoluble in acetone and in methylene chloride. The pKa of metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin hydrochloride tablets, USP contain 500 mg, 850 mg, or 1000 mg of metformin hydrochloride. Each tablet contains the inactive ingredients povidone (K-30), Povidone (K-90), pregelatinized starch, and magnesium stearate. In addition, the coating for the tablet contains artificial blackberry flavor, hypromellose, macrogol and titanium dioxide. metformin-structure.jpg.jpg

Metformin hydrochloride extended-release tablets, USP contain the antihyperglycemic agent metformin, which is a biguanide, in the form of monohydrochloride. The chemical name of metformin hydrochloride is N,N -dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown below: Metformin hydrochloride is a white to off-white crystalline compound with a molecular formula of C 4 H 11 N 5 ∙ HCl and a molecular weight of 165.63. It is freely soluble in water and is practically insoluble in acetone, ether, and chloroform. The pK a of metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin hydrochloride extended-release tablets, USP contain 500 mg or 750 mg of metformin hydrochloride, which is equivalent to 389.93 mg, 584.90 mg metformin base, respectively. Metformin hydrochloride extended-release tablets USP, 500 mg and 750 mg contain the inactive ingredients carboxymethylcellulose sodium, copovidone, hypromellose, magnesium stearate and microcrystalline cellulose. The USP dissolution test is pending. Chemical Structure

Metformin hydrochloride extended-release tablets, USP contain the biguanidine antihyperglycemic agent, metformin, in the form of monohydrochloride salt. The chemical name of metformin HCl is N, N-dimethylimidodicarbonimidic diamide hydrochloride with a molecular formula of C 4 H 11 N 5 •HCl and a molecular weight of 165.63. Its structural formula is: Metformin HCl is a white to off-white crystalline powder that is freely soluble in water and is practically insoluble in acetone, ether, and chloroform. The pKa of metformin is 12.4. The pH of a 1% aqueous solution of metformin HCl is 6.68. Metformin hydrochloride extended-release tablets deliver 500 mg or 1,000 mg of metformin HCl, which is equivalent to 389.93 mg or 779.86 mg metformin, respectively. In addition to the active ingredient metformin HCl, each tablet contains the following inactive ingredients: ammonio methacrylate copolymer type A, ammonio methacrylate copolymer type B, colloidal silicone dioxide, crospovidone, dibutyl sebacate, hypromellose, magnesium stearate, microcrystalline cellulose and povidone. Metformin hydrochloride extended-release tablets USP meets USP Dissolution Test 12. Image

Metformin Hydrochloride Tablets, USP contain the antihyperglycemic agent metformin, which is a biguanide, in the form of monohydrochloride. The chemical name of metformin hydrochloride is N,N -dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown below Metformin hydrochloride is a white crystalline compound with a molecular formula of C 4 H 11 N 5 • HCl and a molecular weight of 165.63. Metformin hydrochloride is freely soluble in water, slightly soluble in alcohol, practically insoluble in acetone and in methylene hydrochloride. The pK a of metformin is 12.4. The p H of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin Hydrochloride Tablets contain 500 mg, 850 mg, or 1000 mg of metformin hydrochloride, which is equivalent to 389.93 mg, 662.88 mg, 779.86 mg metformin base, respectively. Each tablet contains the inactive ingredients pregelatinized starch (maize), povidone, crospovidone, magnesium stearate. In addition, the coating for the tablets contains hypromellose, polyethylene glycol, titanium dioxide and flavoring agent contains dextrose, ethyl alcohol, gum arabic, propylene glycol and silicon dioxide. Formula

Metformin hydrochloride tablets, USP contain the antihyperglycemic agent metformin, which is a biguanide, in the form of monohydrochloride. The chemical name of metformin hydrochloride is N,N -dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown below: Metformin hydrochloride, USP is a white to off-white crystalline compound with a molecular formula of C 4 H 11 N 5 • HCl and a molecular weight of 165.63. It is freely soluble in water and is practically insoluble in acetone, ether, and chloroform. The pK a of metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin hydrochloride tablets, USP contain 500 mg, 850 mg, or 1,000 mg of metformin hydrochloride, which is equivalent to 389.93 mg, 662.88 mg, 779.86 mg metformin base, respectively. Each tablet contains the inactive ingredients colloidal silicon dioxide, croscarmellose sodium, magnesium stearate and povidone. In addition, the tablet coating material of 500 mg, 850 mg and 1,000 mg tablets contains hypromellose, polyethylene glycol, titanium dioxide and artificial blackberry flavor. Structure

Metformin hydrochloride tablets, USP contain the antihyperglycemic agent metformin, which is a biguanide, in the form of monohydrochloride. The chemical name of metformin hydrochloride is N,N -dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown below: Metformin hydrochloride, USP is a white to off-white crystalline compound with a molecular formula of C 4 H 11 N 5 • HCl and a molecular weight of 165.63. It is freely soluble in water and is practically insoluble in acetone, ether, and chloroform. The pK a of metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin hydrochloride tablets, USP contain 500 mg, 850 mg, or 1,000 mg of metformin hydrochloride, which is equivalent to 389.93 mg, 662.88 mg, 779.86 mg metformin base, respectively. Each tablet contains the inactive ingredients colloidal silicon dioxide, croscarmellose sodium, magnesium stearate and povidone. In addition, the tablet coating material of 500 mg, 850 mg and 1,000 mg tablets contains hypromellose, polyethylene glycol, titanium dioxide and artificial blackberry flavor. Structure

Metformin hydrochloride tablets, USP contain the antihyperglycemic agent metformin, which is a biguanide, in the form of monohydrochloride. The chemical name of metformin hydrochloride is N,N-dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown below: Metformin hydrochloride is a white to off-white crystalline compound with a molecular formula of C 4 H 11 N 5 • HCl and a molecular weight of 165.63. It is freely soluble in water and is practically insoluble in acetone, ether, and chloroform. The p Ka of metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin hydrochloride tablets contain 500 mg, 850 mg, or 1,000 mg of metformin hydrochloride, which is equivalent to 389.93 mg, 662.88 mg, 779.86 mg metformin base, respectively. Each tablet contains the inactive ingredients hypromellose, magnesium stearate, polyethylene glycol/macrogol, povidone and titanium dioxide. Metformin hydrochloride tablets dissolution USP Test-1 is used. Metformin Structure

Metformin hydrochloride tablets, USP contain the antihyperglycemic agent metformin, which is a biguanide, in the form of monohydrochloride. The chemical name of metformin hydrochloride is N,N- dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown below: Metformin hydrochloride, USP is a white to off-white crystalline compound with a molecular formula of C 4 H 11 N 5 • HCl and a molecular weight of 165.63. Metformin hydrochloride is freely soluble in water, slightly soluble in alcohol, practically insoluble in acetone and in methylene chloride. The pKa of metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin hydrochloride tablets, USP contain 500 mg, 850 mg, or 1000 mg of metformin hydrochloride. Each tablet contains the inactive ingredients povidone (K-30), Povidone (K-90), pregelatinized starch, and magnesium stearate. In addition, the coating for the tablet contains artificial blackberry flavor, hypromellose, macrogol and titanium dioxide. metformin-structure.jpg.jpg

Metformin hydrochloride extended-release tablets contain the antihyperglycemic agent metformin, which is a biguanide, in the form of monohydrochloride. The chemical name of metformin hydrochloride is N,N-dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown below: Metformin hydrochloride is a white to off-white crystalline compound with a molecular formula of C 4 H 11 N 5 •HCl and a molecular weight of 165.63. It is freely soluble in water and is practically insoluble in acetone, ether, and chloroform. The pK a of metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin hydrochloride extended-release tablets, USP contains 500 mg or 750 mg of metformin hydrochloride USP, which is equivalent to 389.93 mg, 584.90 mg metformin base, respectively. Metformin hydrochloride extended-release tablets, USP 500 mg contain the inactive ingredients xanthan gum, hypromellose, sodium carbonate, povidone, talc, colloidal silicon dioxide and magnesium stearate. Metformin hydrochloride extended-release tablets, USP 750 mg contain the inactive ingredients xanthan gum, hypromellose, sodium carbonate, povidone, talc, colloidal silicon dioxide, magnesium stearate and ferric oxide (red). Metformin hydrochloride extended-release tablets meet USP dissolution test 10. metformin-er-structure

Amlodipine besylate, USP is the besylate salt of amlodipine, a long-acting calcium channel blocker. Amlodipine besylate, USP is chemically described as 3-Ethyl-5-methyl (±)-2-[(2-aminoethoxy)methyl] 4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylate, monobenzenesulphonate. Its molecular formula is C 20 H 25 ClN 2 O 5 •C 6 H 6 O 3 S and its structural formula is: Amlodipine besylate, USP is a white crystalline powder with a molecular weight of 567.1. It is slightly soluble in water and sparingly soluble in ethanol. Amlohowdipinebesylate Tablets, USP are formulated as yellow tablets equivalent to 2.5 mg or white tablets equivalent to 5 and 10 mg of amlodipine for oral administration. In addition to the active ingredient, amlodipine besylate, USP, each tablet contains the following inactive ingredients: colloidal silicon dioxide,magnesium stearate,microcrystalline cellulose and sodium starch glycolate. The 2.5 mg strength additionally contains ferric oxide yellow as coloring agent. structure

Amlodipine besylate is the besylate salt of amlodipine, a long-acting calcium channel blocker. Amlodipine besylate is chemically described as 3-Ethyl-5-methyl(±)-2- [(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6- methyl-3,5-pyridinedicarboxylate, monobenzenesulphonate. Its molecular formula is C 20 H 25 ClN 2 O 5 •C 6 H 6 O 3 S, and its structural formula is: Amlodipine besylate is a white crystalline powder with a molecular weight of 567.1. It is slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate tablets, USP are formulated as white tablets equivalent to 2.5, 5, and 10 mg of amlodipine for oral administration. In addition to the active ingredient, amlodipine besylate, each tablet contains the following inactive ingredients: microcrystalline cellulose, dibasic calcium phosphate anhydrous, sodium starch glycolate, colloidal silicon dioxide and magnesium stearate. amlodipine-str-2

Amlodipine besylate is the besylate salt of amlodipine, a long-acting calcium channel blocker. Amlodipine besylate is chemically described as 3-Ethyl-5-methyl (±)-2-[(2-aminoethoxy) methyl]-4-(2-chlorophenyl)-1, 4-dihydro-6-methyl-3, 5-pyridinedicarboxylate, monobenzenesulphonate. Its molecular formula is C 20 H 25 CIN 2 O 5 •C 6 H 6 O 3 S, and its structural formula is: Amlodipine besylate is a white or almost white powder with a molecular weight of 567.1. It is slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate tablets, USP are formulated as white to off white tablets equivalent to 2.5, 5, and 10 mg of amlodipine for oral administration. In addition to the active ingredient, amlodipine besylate, each tablet contains the following inactive ingredients: microcrystalline cellulose, dibasic calcium phosphate dihydrate, sodium starch glycolate, colloidal silicon dioxide and magnesium stearate. Image

Amlodipine besylate is the besylate salt of amlodipine, a long-acting calcium channel blocker. Amlodipine besylate is chemically described as 3-Ethyl-5-methyl(±)-2- [(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6- methyl-3,5-pyridinedicarboxylate, monobenzenesulphonate. Its molecular formula is C 20 H 25 ClN 2 O 5 •C 6 H 6 O 3 S, and its structural formula is: Amlodipine besylate is a white crystalline powder with a molecular weight of 567.1. It is slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate tablets, USP are formulated as white tablets equivalent to 2.5, 5, and 10 mg of amlodipine for oral administration. In addition to the active ingredient, amlodipine besylate, each tablet contains the following inactive ingredients: microcrystalline cellulose, dibasic calcium phosphate anhydrous, sodium starch glycolate, colloidal silicon dioxide and magnesium stearate. amlodipine-str-2

Amlodipine besylate is the besylate salt of amlodipine, a long-acting calcium channel blocker. Amlodipine besylate is chemically described as 3-Ethyl-5-methyl (±)-2-[(2-aminoethoxy) methyl]-4-(2-chlorophenyl)-1, 4-dihydro-6-methyl-3, 5-pyridinedicarboxylate, monobenzenesulphonate. Its molecular formula is C 20 H 25 CIN 2 O 5 •C 6 H 6 O 3 S, and its structural formula is: Amlodipine besylate is a white or almost white powder with a molecular weight of 567.1. It is slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate tablets, USP are formulated as white to off white tablets equivalent to 2.5, 5, and 10 mg of amlodipine for oral administration. In addition to the active ingredient, amlodipine besylate, each tablet contains the following inactive ingredients: microcrystalline cellulose, dibasic calcium phosphate dihydrate, sodium starch glycolate, colloidal silicon dioxide and magnesium stearate. Image

Amlodipine besylate, USP is the besylate salt of amlodipine, a long-acting calcium channel blocker. Amlodipine besylate, USP is chemically described as 3-Ethyl-5-methyl (±)-2-[(2-aminoethoxy)methyl] 4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylate, monobenzenesulphonate. Its molecular formula is C 20 H 25 ClN 2 O 5 •C 6 H 6 O 3 S and its structural formula is: Amlodipine besylate, USP is a white crystalline powder with a molecular weight of 567.1. It is slightly soluble in water and sparingly soluble in ethanol. Amlohowdipinebesylate Tablets, USP are formulated as yellow tablets equivalent to 2.5 mg or white tablets equivalent to 5 and 10 mg of amlodipine for oral administration. In addition to the active ingredient, amlodipine besylate, USP, each tablet contains the following inactive ingredients: colloidal silicon dioxide,magnesium stearate,microcrystalline cellulose and sodium starch glycolate. The 2.5 mg strength additionally contains ferric oxide yellow as coloring agent. structure

Amlodipine besylate is the besylate salt of amlodipine, a long-acting calcium channel blocker. Amlodipine besylate is chemically described as 3-Ethyl-5-methyl(±)-2- [(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6- methyl-3,5-pyridinedicarboxylate, monobenzenesulphonate. Its molecular formula is C 20 H 25 ClN 2 O 5 •C 6 H 6 O 3 S, and its structural formula is: Amlodipine besylate is a white crystalline powder with a molecular weight of 567.1. It is slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate tablets, USP are formulated as white tablets equivalent to 2.5, 5, and 10 mg of amlodipine for oral administration. In addition to the active ingredient, amlodipine besylate, each tablet contains the following inactive ingredients: microcrystalline cellulose, dibasic calcium phosphate anhydrous, sodium starch glycolate, colloidal silicon dioxide and magnesium stearate. amlodipine-str-2

Amlodipine besylate tablets are the besylate salt of amlodipine, a long-acting calcium channel blocker. Amlodipine besylate is chemically described as 3-Ethyl-5-methyl (±)-2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylate, monobenzenesulphonate. Its empirical formula is C 20 H 25 ClN 2 O 5 •C 6 H 6 O 3 S, and its structural formula is: Amlodipine besylate is a white crystalline powder with a molecular weight of 567.1. It is slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate tablets USP are formulated as white tablets equivalent to 2.5, 5, and 10 mg of amlodipine for oral administration. In addition to the active ingredient, amlodipine besylate, each tablet contains the following inactive ingredients: dibasic calcium phosphate anhydrous, magnesium stearate, microcrystalline cellulose, and sodium starch glycolate. structure

Metoprolol succinate extended-release tablets, metoprolol succinate, is a beta1-selective (cardioselective) adrenoceptor blocking agent, for oral administration, available as extended-release tablets. Metoprolol succinate extended-release tablets has been formulated to provide a controlled and predictable release of metoprolol for once-daily administration. The tablets comprise a multiple unit system containing metoprolol succinate in a multitude of controlled release pellets. Each pellet acts as a separate drug delivery unit and is designed to deliver metoprolol continuously over the dosage interval. The tablets contain 23.75, 47.5, 95 and 190 mg of metoprolol succinate equivalent to 25, 50, 100 and 200 mg of metoprolol tartrate, USP, respectively. Its chemical name is (±)1- (isopropylamino)-3-[p-(2-methoxyethyl) phenoxy]-2-propanol succinate (2:1) (salt). Its structural formula is: Metoprolol succinate, USP is a white crystalline powder with a molecular weight of 652.8. It is freely soluble in water; soluble in methanol; sparingly soluble in ethanol; slightly soluble in dichloromethane and 2-propanol; practically insoluble in ethyl-acetate, acetone, diethylether and heptane. Inactive ingredients: silicon dioxide, cellulose compounds, sodium stearyl fumarate, polyethylene glycol, titanium dioxide, paraffin. Structure

Metoprolol succinate is a beta 1 -selective (cardioselective) adrenoceptor blocking agent, for oral administration, available as extended-release tablets. Metoprolol succinate extended-release tablets, USP has been formulated to provide a controlled and predictable release of metoprolol for once-daily administration. The tablets comprise a multiple unit system containing metoprolol succinate in a multitude of controlled release pellets. Each pellet acts as a separate drug delivery unit and is designed to deliver metoprolol continuously over the dosage interval. The tablets contain 47.5, 95 and 190 mg of metoprolol succinate equivalent to 50, 100 and 200 mg of metoprolol tartrate, USP, respectively. Its chemical name is (±) 1(isopropylamino)-3-[p-(2-methoxyethyl) phenoxy]-2-propanol succinate. Its structural formula is: image Metoprolol succinate, USP is a white crystalline powder with a molecular weight of 652.8. It is freely soluble in water and soluble in methanol. Inactive ingredients: acetyl tributyl citrate, colloidal silicon dioxide, crosspovidone, ethyl cellulose, hydroxypropyl cellulose, hypromellose, isopropyl alcohol, methylene chloride, microcrystalline cellulose, microcrystalline cellulose sphere, polyethylene glycol, sodium stearyl fumarate and talc. The tablets are film-coated with coating material Opadry white 04F58804 containing hypromellose, polyethylene glycol and titanium dioxide. image

Metoprolol succinate, is a beta 1 -selective (cardioselective) adrenoceptor blocking agent, for oral administration, available as extended-release tablets. Metoprolol succinate extended-release tablets has been formulated to provide a controlled and predictable release of metoprolol for once-daily administration. The tablets comprise a multiple unit system containing metoprolol succinate in a multitude of controlled release pellets. Each pellet acts as a separate drug delivery unit and is designed to deliver metoprolol continuously over the dosage interval. The tablets contain 23.75, 47.5, 95 and 190 mg of metoprolol succinate equivalent to 25, 50, 100 and 200 mg of metoprolol tartrate, USP, respectively. Its chemical name is (±)1-(isopropyl amino)-3-[p-(2-methoxyethyl) phenoxy]-2-propanol succinate (2:1) (salt). Its structural formula is: Metoprolol succinate, USP is a white to off white powder with a molecular weight of 652.8. It is freely soluble in water; soluble in methanol; sparingly soluble in alcohol; slightly soluble in isopropyl alcohol. Inactive ingredients: acetyl tributyl citrate, carnauba wax, colloidal silicon dioxide, ethylcellulose, glyceryl dibehenate, hydroxypropyl cellulose, hypromellose, Microcrystalline cellulose PH 105, Microcrystalline cellulose PH 102, polyethylene glycol, sodium stearyl fumarate, titanium dioxide. Meets USP dissolution test 13. meto-structure.jpg

Metoprolol succinate, is a beta 1 -selective (cardioselective) adrenoceptor blocking agent, for oral administration, available as extended release tablets. Metoprolol succinate has been formulated to provide a controlled and predictable release of metoprolol for once-daily administration. The tablets comprise a multiple unit system containing metoprolol succinate extended-release tablets in a multitude of controlled release pellets. Each pellet acts as a separate drug delivery unit and is designed to deliver metoprolol continuously over the dosage interval. The tablets contain 23.75, 47.5, 95 and 190 mg of metoprolol succinate equivalent to 25, 50, 100 and 200 mg of metoprolol tartrate, respectively. Its chemical name is (±)1- (isopropyl amino)-3-[p-(2-methoxyethyl) phenoxy]-2-propanol succinate (2:1) (salt). Its structural formula is: Metoprolol succinate, USP is a white to off white powder with a molecular weight of 652.8. It is freely soluble in water; soluble in methanol; sparingly soluble in alcohol and slightly soluble in isopropyl alcohol. Each metoprolol succinate extended-release tablet intended for oral administration contains metoprolol succinate equivalent to 25 mg, 50 mg, 100 mg or 200 mg of metoprolol tartrate. In addition, each tablet contains the following inactive ingredients: Colloidal silicon dioxide, croscarmellose sodium, ethyl cellulose, glycerin, hypromellose, magnesium stearate, methyl cellulose, microcrystalline cellulose, polyethylene glycol, povidone and talc. Additionally, each metoprolol succinate extended-release tablets contain opadry II white 03B28796 which contains hypromellose, polyethylene glycol and titanium dioxide. Meets USP Dissolution Test 4. figure

Metoprolol succinate, is a beta 1 -selective (cardioselective) adrenoceptor blocking agent, for oral administration, available as extended-release tablets. Metoprolol succinate extended-release tablets has been formulated to provide a controlled and predictable release of metoprolol for once-daily administration. The tablets comprise a multiple unit system containing metoprolol succinate in a multitude of controlled release pellets. Each pellet acts as a separate drug delivery unit and is designed to deliver metoprolol continuously over the dosage interval. The tablets contain 23.75, 47.5, 95 and 190 mg of metoprolol succinate equivalent to 25, 50, 100 and 200 mg of metoprolol tartrate, USP, respectively. Its chemical name is (±)1-(isopropyl amino)-3-[p-(2-methoxyethyl) phenoxy]-2-propanol succinate (2:1) (salt). Its structural formula is: Metoprolol succinate, USP is a white to off white powder with a molecular weight of 652.8. It is freely soluble in water; soluble in methanol; sparingly soluble in alcohol; slightly soluble in isopropyl alcohol. Inactive ingredients: acetyl tributyl citrate, carnauba wax, colloidal silicon dioxide, ethylcellulose, glyceryl dibehenate, hydroxypropyl cellulose, hypromellose, microcrystalline cellulose, polyethylene glycol, sodium stearyl fumarate, titanium dioxide. FDA approved dissolution test specifications differ from USP. meto-structure.jpg

Metoprolol succinate, is a beta 1 -selective (cardioselective) adrenoceptor blocking agent, for oral administration, available as extended release tablets. Metoprolol succinate has been formulated to provide a controlled and predictable release of metoprolol for once-daily administration. The tablets comprise a multiple unit system containing metoprolol succinate extended-release tablets in a multitude of controlled release pellets. Each pellet acts as a separate drug delivery unit and is designed to deliver metoprolol continuously over the dosage interval. The tablets contain 23.75, 47.5, 95 and 190 mg of metoprolol succinate equivalent to 25, 50, 100 and 200 mg of metoprolol tartrate, respectively. Its chemical name is (±)1- (isopropyl amino)-3-[p-(2-methoxyethyl) phenoxy]-2-propanol succinate (2:1) (salt). Its structural formula is: Metoprolol succinate, USP is a white to off white powder with a molecular weight of 652.8. It is freely soluble in water; soluble in methanol; sparingly soluble in alcohol and slightly soluble in isopropyl alcohol. Each metoprolol succinate extended-release tablet intended for oral administration contains metoprolol succinate equivalent to 25 mg, 50 mg, 100 mg or 200 mg of metoprolol tartrate. In addition, each tablet contains the following inactive ingredients: Colloidal silicon dioxide, croscarmellose sodium, ethyl cellulose, glycerin, hypromellose, magnesium stearate, methyl cellulose, microcrystalline cellulose, polyethylene glycol, povidone and talc. Additionally, each metoprolol succinate extended-release tablets contain opadry II white 03B28796 which contains hypromellose, polyethylene glycol and titanium dioxide. Meets USP Dissolution Test 4. figure

The active ingredient in omeprazole delayed-release capsules, USP is a substituted benzimidazole, 5-methoxy-2-[[(4-methoxy-3, 5-dimethyl-2-pyridinyl) methyl] sulfinyl]-1H-benzimidazole, a compound that inhibits gastric acid secretion. Its empirical formula is C 17 H 19 N 3 O 3 S, with a molecular weight of 345.42. The structural formula is: Omeprazole USP is a white to off-white powder. Melts between 150°C and 160°C with decomposition. It is soluble in dichloromethane, sparingly soluble in methanol and in alcohol and very slightly soluble in water. Omeprazole USP is supplied as delayed-release capsules for oral administration. Each delayed-release capsule contains either 10 mg, 20 mg or 40 mg of omeprazole in the form of enteric-coated granules with the following inactive ingredients: glyceryl monostearate, hypromellose (5cps), meglumine, methacrylic acid copolymer, poloxamer, sugar globules, talc, titanium dioxide, and triethyl citrate. The capsule shells have the following inactive ingredients: black iron oxide, D & C Red 28, FD & C Blue 1, FD & C Red 40, gelatin, potassium hydroxide, propylene glycol, shellac, titanium dioxide, and yellow iron oxide. Omeprazole delayed-release capsules meets USP Dissolution Test 2. structure

The active ingredient in omeprazole delayed-release capsules, USP is a substituted benzimidazole, 5-methoxy-2-[[(4-methoxy-3, 5-dimethyl-2-pyridinyl) methyl] sulfinyl]-1H-benzimidazole, a compound that inhibits gastric acid secretion. Its empirical formula is C 17 H 19 N 3 O 3 S, with a molecular weight of 345.42. The structural formula is: Omeprazole USP is a white to off-white powder. Melts between 150°C and 160°C with decomposition. It is soluble in dichloromethane, sparingly soluble in methanol and in alcohol and very slightly soluble in water. Omeprazole USP is supplied as delayed-release capsules for oral administration. Each delayed-release capsule contains either 10 mg, 20 mg or 40 mg of omeprazole in the form of enteric-coated granules with the following inactive ingredients: glyceryl monostearate, hypromellose (5cps), meglumine, methacrylic acid copolymer, poloxamer, sugar globules, talc, titanium dioxide, and triethyl citrate. The capsule shells have the following inactive ingredients: black iron oxide, D & C Red 28, FD & C Blue 1, FD & C Red 40, gelatin, potassium hydroxide, propylene glycol, shellac, titanium dioxide, and yellow iron oxide. Omeprazole delayed-release capsules meets USP Dissolution Test 2. structure

The active ingredient in Omeprazole Delayed-Release Capsules, USP is a substituted benzimidazole, 5-methoxy-2[[(4-methoxy-3, 5-dimethyl-2-pyridinyl) methyl] sulfinyl]-1H-benzimidazole, a compound that inhibits gastric acid secretion. Its empirical formula is C 17 H 19 N 3 O 3 S, with a molecular weight of 345.42 g/mol. The structural formula is: Omeprazole, USP is a white to off-white crystalline powder that melts with decomposition at about 155°C. It is a weak base, freely soluble in ethanol and methanol, and slightly soluble in acetone and isopropanol and very slightly soluble in water. The stability of omeprazole is a function of pH; it is rapidly degraded in acid media, but has acceptable stability under alkaline conditions. Omeprazole, USP is supplied as delayed-release capsules for oral administration. Each delayed-release capsule contains either 10 mg, 20 mg or 40 mg of omeprazole, USP in the form of enteric-coated granules with the following inactive ingredients: anhydrous lactose, cetyl alcohol, di-sodium hydrogen phosphate dihydrate, hypromellose, hypromellose phthalate, mannitol, simethicone emulsion 30%, sodium lauryl sulfate and sugar sphere. The capsule shell for Omeprazole Delayed-Release Capsules, USP 10 mg contains D&C Yellow No.10, FD&C Blue No.1, FD&C Red No. 40, FD&C Yellow No. 6, gelatin, sodium lauryl sulfate and titanium dioxide. The capsule shell for Omeprazole Delayed-Release Capsules, USP 20 mg contains FD&C Blue No.1, gelatin, sodium lauryl sulfate and titanium dioxide. The capsule shell for Omeprazole Delayed-Release Capsules, USP 40 mg contains D&C Yellow No.10, FD&C Blue No.1, FD&C Red No. 40, FD&C Yellow No. 6, gelatin, sodium lauryl sulfate and titanium dioxide. The imprinting ink has the following components: black iron oxide, butyl alcohol, dehydrated alcohol, isopropyl alcohol, potassium hydroxide, propylene glycol, strong ammonia solution and shellac. structure

The active ingredient in omeprazole delayed-release capsule, USP is a substituted benzimidazole, 5-methoxy-2-[[(4-methoxy-3, 5-dimethyl-2-pyridinyl) methyl] sulfinyl]-1 H -benzimidazole, a compound that inhibits gastric acid secretion. Its molecular formula is C 17 H 19 N 3 O 3 S, with a molecular weight of 345.42. The structural formula is: Omeprazole is a white to off-white crystalline powder that melts with decomposition at about 155°C. It is a weak base, freely soluble in ethanol and methanol, and slightly soluble in acetone and isopropanol and very slightly soluble in water. The stability of omeprazole is a function of pH; it is rapidly degraded in acid media, but has acceptable stability under alkaline conditions. The Dissolution test to be performed according to USP Test 2. Omeprazole is supplied as delayed-release capsules for oral administration. Each delayed-release capsule contains either 10 mg, 20 mg of omeprazole in the form of enteric-coated granules. The 10 mg, 20 mg capsule contains the following inactive ingredients: hypromellose, magnesium oxide, methacrylic acid copolymer dispersion type C, povidone, sodium lauryl sulfate, sugar spheres, talc, titanium dioxide, and triethyl citrate. The capsule shells for the 20 mg have the following inactive ingredients: gelatin and titanium dioxide. The capsule shells for the 10 mg have the following inactive ingredients: gelatin, iron oxide black, iron oxide red, iron oxide yellow and titanium dioxide. The black ink used for printing 10 mg, 20 mg contains: black iron oxide, potassium hydroxide, propylene glycol, shellac and strong ammonia solution. The sugar spheres contains maize starch and sucrose. structure

The active ingredient in Omeprazole Delayed-Release Capsules, USP is a substituted benzimidazole, 5-methoxy-2[[(4-methoxy-3, 5-dimethyl-2-pyridinyl) methyl] sulfinyl]-1H-benzimidazole, a compound that inhibits gastric acid secretion. Its empirical formula is C 17 H 19 N 3 O 3 S, with a molecular weight of 345.42 g/mol. The structural formula is: Omeprazole, USP is a white to off-white crystalline powder that melts with decomposition at about 155°C. It is a weak base, freely soluble in ethanol and methanol, and slightly soluble in acetone and isopropanol and very slightly soluble in water. The stability of omeprazole is a function of pH; it is rapidly degraded in acid media, but has acceptable stability under alkaline conditions. Omeprazole, USP is supplied as delayed-release capsules for oral administration. Each delayed-release capsule contains either 10 mg, 20 mg or 40 mg of omeprazole, USP in the form of enteric-coated granules with the following inactive ingredients: anhydrous lactose, cetyl alcohol, di-sodium hydrogen phosphate dihydrate, hypromellose, hypromellose phthalate, mannitol, simethicone emulsion 30%, sodium lauryl sulfate and sugar sphere. The capsule shell for Omeprazole Delayed-Release Capsules, USP 10 mg contains D&C Yellow No.10, FD&C Blue No.1, FD&C Red No. 40, FD&C Yellow No. 6, gelatin, sodium lauryl sulfate and titanium dioxide. The capsule shell for Omeprazole Delayed-Release Capsules, USP 20 mg contains FD&C Blue No.1, gelatin, sodium lauryl sulfate and titanium dioxide. The capsule shell for Omeprazole Delayed-Release Capsules, USP 40 mg contains D&C Yellow No.10, FD&C Blue No.1, FD&C Red No. 40, FD&C Yellow No. 6, gelatin, sodium lauryl sulfate and titanium dioxide. The imprinting ink has the following components: black iron oxide, butyl alcohol, dehydrated alcohol, isopropyl alcohol, potassium hydroxide, propylene glycol, strong ammonia solution and shellac. structure

Losartan potassium is an angiotensin II receptor blocker acting on the AT 1 receptor subtype. Losartan potassium, a non-peptide molecule, is chemically described as 2-butyl-4-chloro-l-[(2'-(lH-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-lH-imidazole-5-methanol mono potassium salt. Its molecular formula is C 22 H 22 ClKN 6 O, and its structural formula is: Losartan potassium, USP is a white to off-white powder with a molecular weight of 461.01. It is freely soluble in water and slightly soluble in acetonitrile. Oxidation of the 5-hydroxymethyl group on the imidazole ring results in the active metabolite of losartan. Losartan potassium is available as tablets for oral administration containing either 25 mg, 50 mg or 100 mg of losartan potassium, USP and the following inactive ingredients: crospovidone, lactose monohydrate, low substituted hydroxy propyl cellulose, magnesium stearate, microcrystalline cellulose and pregelatinized starch. The tablets are coated with Opadry White which contains carnauba wax, hypromellose and titanium dioxide. Losartan potassium tablets USP, 25 mg, 50 mg and 100 mg tablets contain potassium in the following amounts: 2.12 mg (0.054 mEq), 4.24 mg (0.108 mEq) and 8.48 mg (0.216 mEq), respectively. The botanical source for pregelatinized starch is corn starch. losartanstructure

Losartan potassium is an angiotensin II receptor blocker acting on the AT 1 receptor subtype. Losartan potassium, a non-peptide molecule, is chemically described as 2-butyl-4-chloro-l-[(2'-(lH-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-lH-imidazole-5-methanol mono potassium salt. Its molecular formula is C 22 H 22 ClKN 6 O, and its structural formula is: Losartan potassium, USP is a white to off-white powder with a molecular weight of 461.01. It is freely soluble in water and slightly soluble in acetonitrile. Oxidation of the 5-hydroxymethyl group on the imidazole ring results in the active metabolite of losartan. Losartan potassium is available as tablets for oral administration containing either 25 mg, 50 mg or 100 mg of losartan potassium, USP and the following inactive ingredients: crospovidone, lactose monohydrate, low substituted hydroxy propyl cellulose, magnesium stearate, microcrystalline cellulose and pregelatinized starch. The tablets are coated with Opadry White which contains carnauba wax, hypromellose and titanium dioxide. Losartan potassium tablets USP, 25 mg, 50 mg and 100 mg tablets contain potassium in the following amounts: 2.12 mg (0.054 mEq), 4.24 mg (0.108 mEq) and 8.48 mg (0.216 mEq), respectively. The botanical source for pregelatinized starch is corn starch. losartanstructure

Losartan potassium is an angiotensin II receptor blocker acting on the AT 1 receptor subtype. Losartan potassium, a non-peptide molecule, is chemically described as 2-butyl-4-chloro-1-[ p -( o -1 H- tetrazol-5-ylphenyl)benzyl]imidazole-5-methanol monopotassium salt. Its empirical formula is C 22 H 22 ClKN 6 O, and its structural formula is: Losartan potassium is a white to off-white free-flowing crystalline powder with a molecular weight of 461.01. It is freely soluble in water, soluble in alcohols, and slightly soluble in common organic solvents, such as acetonitrile and methyl ethyl ketone. Oxidation of the 5-hydroxymethyl group on the imidazole ring results in the active metabolite of losartan. Losartan potassium is available as tablets for oral administration containing either 25 mg, 50 mg or 100 mg of losartan potassium, USP, and the following inactive ingredients: microcrystalline cellulose, lactose monohydrate, pregelatinized starch, magnesium stearate, hydroxypropyl cellulose, hypromellose, and titanium dioxide. Losartan potassium tablets USP, 25 mg, 50 mg and 100 mg, contain potassium in the following amounts: 2.12 mg (0.054 mEq), 4.24 mg (0.108 mEq) and 8.48 mg (0.216 mEq), respectively. Losartan potassium tablets USP, 25 mg and 50 mg meet USP Dissolution Test 1 and Losartan potassium tablets USP, 100 mg meet USP Dissolution Test 3. Chemical Structure

Losartan potassium is an angiotensin II receptor blocker acting on the AT 1 receptor subtype. Losartan potassium, a non-peptide molecule, is chemically described as 2-butyl-4-chloro-1-[ p -( o -1 H- tetrazol-5-ylphenyl)benzyl]imidazole-5-methanol monopotassium salt. Its empirical formula is C 22 H 22 ClKN 6 O, and its structural formula is: Losartan potassium is a white to off-white free-flowing crystalline powder with a molecular weight of 461.01. It is freely soluble in water, soluble in alcohols, and slightly soluble in common organic solvents, such as acetonitrile and methyl ethyl ketone. Oxidation of the 5-hydroxymethyl group on the imidazole ring results in the active metabolite of losartan. Losartan potassium is available as tablets for oral administration containing either 25 mg, 50 mg or 100 mg of losartan potassium, USP, and the following inactive ingredients: microcrystalline cellulose, lactose monohydrate, pregelatinized starch, magnesium stearate, hydroxypropyl cellulose, hypromellose, and titanium dioxide. Losartan potassium tablets USP, 25 mg, 50 mg and 100 mg, contain potassium in the following amounts: 2.12 mg (0.054 mEq), 4.24 mg (0.108 mEq) and 8.48 mg (0.216 mEq), respectively. Losartan potassium tablets USP, 25 mg and 50 mg meet USP Dissolution Test 1 and Losartan potassium tablets USP, 100 mg meet USP Dissolution Test 3. Chemical Structure

Losartan potassium is an angiotensin II receptor blocker acting on the AT 1 receptor subtype. Losartan potassium, a non-peptide molecule, is chemically described as 2-butyl-4-chloro-1-[ p -( o -1 H- tetrazol-5-ylphenyl)benzyl]imidazole-5-methanol monopotassium salt. Its empirical formula is C 22 H 22 ClKN 6 O, and its structural formula is: Losartan potassium is a white to off-white free-flowing crystalline powder with a molecular weight of 461.01. It is freely soluble in water, soluble in alcohols, and slightly soluble in common organic solvents, such as acetonitrile and methyl ethyl ketone. Oxidation of the 5-hydroxymethyl group on the imidazole ring results in the active metabolite of losartan. Losartan potassium is available as tablets for oral administration containing either 25 mg, 50 mg or 100 mg of losartan potassium, USP, and the following inactive ingredients: hydroxypropyl cellulose, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch and titanium dioxide. Losartan potassium tablets USP, 25 mg, 50 mg and 100 mg, contain potassium in the following amounts: 2.12 mg (0.054 mEq), 4.24 mg (0.108 mEq) and 8.48 mg (0.216 mEq), respectively. Losartan potassium tablets USP, 25 mg, 50 mg and 100 mg meet USP Dissolution Test 3. Chemical Structure

Losartan potassium is an angiotensin II receptor blocker acting on the AT 1 receptor subtype. Losartan potassium, a non-peptide molecule, is chemically described as 2-butyl-4-chloro-1-[ p -( o -1 H tetrazol-5-ylphenyl)benzyl]imidazole-5-methanol monopotassium salt. Its molecular formula is C 22 H 22 ClKN 6 O, and its structural formula is: Losartan potassium, USP is white to off-white powder with a molecular weight of 461.01. It is freely soluble in water; soluble in isopropyl alcohol; slightly soluble in acetonitrile. Oxidation of the 5-hydroxymethyl group on the imidazole ring results in the active metabolite of losartan. Losartan potassium tablets, USP 25 mg, 50 mg and 100 mg contain potassium in the following amounts: 2.12 mg (0.054 mEq), 4.24 mg (0.108 mEq) and 8.48 mg (0.216 mEq), respectively. Each losartan potassium tablet, USP intended for oral administration contains 25 mg or 50 mg or 100 mg of losartan potassium. In addition, each tablet contains the following inactive ingredients: colloidal silica anhydrous, hydroxypropyl cellulose (low substituted), hypromellose, lactose monohydrate, magnesium stearate, maize starch (corn starch), microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, talc and titanium dioxide. Losapotatab1

Albuterol inhalation solution is a relatively selective beta 2 -adrenergic bronchodilator (see CLINICAL PHARMACOLOGY section below). Albuterol sulfate, the racemic form of albuterol, has the chemical name α 1 [( tert -Butylamino)methyl]-4-hydroxy- m -xylene-α,α´diol sulfate (2:1) (salt), and the following structural formula: Albuterol sulfate has a molecular weight of 576.71 and the molecular formula (C 13 H 21 NO 3 ) 2 •H 2 SO 4 . Albuterol sulfate is a white or practically white powder, freely soluble in water and slightly soluble in alcohol. The World Health Organization recommended name for albuterol base is salbutamol. Albuterol inhalation solution, USP 0.083% requires no dilution before administration. Each mL of albuterol inhalation solution, USP (0.083%) contains 0.83 mg of albuterol (as 1 mg of albuterol sulfate USP) in an isotonic, sterile, aqueous solution containing sodium chloride, edetate disodium and sodium citrate; hydrochloric acid is used to adjust the pH between 3 and 5. Albuterol inhalation solution, USP (0.083%) contains no sulfiting agents. Albuterol inhalation solution is a clear, colorless solution. albuterol-sulfate-chemical-structure

Albuterol sulfate inhalation solution is a relatively selective beta 2 -adrenergic bronchodilator (see CLINICAL PHARMACOLOGY section below). Albuterol sulfate, the racemic form of albuterol, has the chemical name α 1 -[( tert -Butylamino)methyl]-4-hydroxy- m -xylene-α,α′-diol sulfate (2:1) (salt) and the following structural formula: Albuterol sulfate has a molecular weight of 576.7, and the molecular formula is (C 13 H 21 NO 3 ) 2 •H 2 SO 4 . Albuterol sulfate is a white or practically white powder, freely soluble in water and slightly soluble in alcohol. The World Health Organization’s recommended name for albuterol base is salbutamol. Albuterol sulfate inhalation solution 0.083% requires no dilution before administration. Each mL of albuterol sulfate inhalation solution (0.083%) contains 0.83 mg of albuterol (as 1 mg of albuterol sulfate) in an isotonic, sterile, aqueous solution containing sodium chloride; sulfuric acid is used to adjust the pH to between 3 and 5. Albuterol sulfate inhalation solution (0.083%) contains no sulfiting agents. Albuterol sulfate inhalation solution is a clear, colorless solution. F:\daisy assignment\6月份\06.20\albuterol-sulfate-inhalation-solution-6-20-2008\figure-01.jpg

The active component of Albuterol sulfate inhalation aerosol is albuterol sulfate, USP racemic α 1 [( tert- Butylamino)methyl]-4-hydroxy- m -xylene-α,α'-diol sulfate (2:1)(salt), a relatively selective beta 2 -adrenergic bronchodilator having the following chemical structure: Albuterol sulfate is the official generic name in the United States. The World Health Organization recommended name for the drug is salbutamol sulfate. The molecular weight of albuterol sulfate is 576.7, and the empirical formula is (C 13 H 21 NO 3 ) 2 •H 2 SO 4 . Albuterol sulfate is a white to off-white crystalline solid. It is soluble in water and slightly soluble in ethanol. Albuterol sulfate inhalation aerosol is a pressurized metered-dose aerosol unit for oral inhalation. It contains a microcrystalline suspension of albuterol sulfate in propellant HFA-134a (1,1,1,2-tetrafluoroethane), ethanol, and oleic acid. Each actuation delivers 120 mcg albuterol sulfate, USP from the valve and 108 mcg albuterol sulfate, USP from the mouthpiece (equivalent to 90 mcg of albuterol base from the mouthpiece). Each canister provides 200 inhalations. It is recommended to prime the inhaler before using for the first time and in cases where the inhaler has not been used for more than 2 weeks by releasing four "test sprays" into the air, away from the face. This product does not contain chlorofluorocarbons (CFCs) as the propellant. Structural Formula

The active ingredient of Albuterol Sulfate Inhalation Aerosol is albuterol sulfate, a racemic salt, of albuterol. Albuterol sulfate has the chemical name α 1 -[( tert -butylamino) methyl]-4-hydroxy- m -xylene-α,α’-diol sulfate (2:1)(salt), and has the following chemical structure: The molecular weight of albuterol sulfate is 576.7, and the empirical formula is (C 13 H 21 NO 3 ) 2 •H 2 SO 4 . Albuterol sulfate is a white to off-white crystalline powder. It is soluble in water and slightly soluble in ethanol. Albuterol sulfate is the official generic name in the United States, and salbutamol sulfate is the World Health Organization recommended generic name. Albuterol Sulfate Inhalation Aerosol is a pressurized metered-dose aerosol unit with a dose counter. Albuterol Sulfate is for oral inhalation only. It contains a microcrystalline suspension of albuterol sulfate in propellant HFA-134a (1, 1, 1, 2-tetrafluoroethane) and ethanol. Prime the inhaler before using for the first time and in cases where the inhaler has not been used for more than 2 weeks by releasing three sprays into the air, away from the face. After priming, each actuation delivers 108 mcg albuterol sulfate, from the actuator mouthpiece (equivalent to 90 mcg of albuterol base). Each canister provides 200 actuations (inhalations). This product does not contain chlorofluorocarbons (CFCs) as the propellant. structure

The active ingredient of albuterol sulfate inhalation aerosol is albuterol sulfate, a racemic salt, of albuterol. Albuterol sulfate has the chemical name α 1 -[( tert -butylamino) methyl]-4-hydroxy- m -xylene-α,α'-diol sulfate (2:1) (salt), and has the following chemical structure: The molecular weight of albuterol sulfate is 576.7, and the empirical formula is (C 13 H 21 NO 3 ) 2 • H 2 SO 4 . Albuterol sulfate is a white or almost white crystalline powder. It is freely soluble in water and very slightly soluble in ethanol. Albuterol sulfate is the official generic name in the United States, and salbutamol sulfate is the World Health Organization recommended generic name. Albuterol sulfate inhalation aerosol is a pressurized metered-dose aerosol unit with a dose indicator. Albuterol sulfate inhalation aerosol is for oral inhalation only. It contains a microcrystalline suspension of albuterol sulfate in propellant HFA-134a (1, 1, 1, 2-tetrafluoroethane) and ethanol. Prime the inhaler before using for the first time and in cases where the inhaler has not been used for more than 2 weeks by releasing three sprays into the air, away from the face. After priming, each actuation delivers 108 mcg albuterol sulfate, from the actuator mouthpiece (equivalent to 90 mcg of albuterol base). Each canister provides 200 actuations (inhalations). This product does not contain chlorofluorocarbons (CFCs) as the propellant. Albuterol sulfate

Albuterol sulfate inhalation solution is a relatively selective beta 2 -adrenergic bronchodilator (see CLINICAL PHARMACOLOGY section below). Albuterol sulfate, the racemic form of albuterol, has the chemical name α 1 -[( tert -Butylamino)methyl]-4-hydroxy- m -xylene-α,α'-diol sulfate (2:1) (salt), and the following structural formula: Albuterol sulfate has a molecular weight of 576.70, and the molecular formula (C 13 H 21 NO 3 ) 2 • H 2 SO 4 . Albuterol sulfate is a white or practically white powder, freely soluble in water and slightly soluble in alcohol. The World Health Organization recommended name for albuterol base is salbutamol. Albuterol sulfate inhalation solution 0.083% requires no dilution before administration. Each milliliter of Albuterol Sulfate Inhalation Solution 0.083% contains 0.83 mg of albuterol (as 1 mg of albuterol sulfate) in an isotonic, sterile, aqueous solution containing sodium chloride; sulfuric acid is used to adjust the pH to between 3 and 5. Albuterol Sulfate Inhalation Solution 0.083% contains no sulfiting agents or preservatives. Albuterol sulfate inhalation solution is a clear, colorless to light yellow solution. Chemical Structure

The active component of albuterol sulfate inhalation aerosol is albuterol sulfate, USP racemic α 1 [( tert- Butylamino)methyl]-4-hydroxy- m -xylene-α,α'-diol sulfate (2:1)(salt), a relatively selective beta 2 -adrenergic bronchodilator having the following chemical structure: Albuterol sulfate is the official generic name in the United States. The World Health Organization recommended name for the drug is salbutamol sulfate. The molecular weight of albuterol sulfate is 576.7, and the molecular formula is (C 13 H 21 NO 3 ) 2 •H 2 SO 4 . Albuterol sulfate is a white to off-white crystalline solid. It is soluble in water and slightly soluble in ethanol. Albuterol sulfate inhalation aerosol is a pressurized metered-dose aerosol unit for oral inhalation. It contains a microcrystalline suspension of albuterol sulfate in propellant HFA-134a (1,1,1,2-tetrafluoroethane), ethanol, and oleic acid. Each actuation delivers 120 mcg albuterol sulfate, USP from the valve and 108 mcg albuterol sulfate, USP from the mouthpiece (equivalent to 90 mcg of albuterol base from the mouthpiece). Each canister provides 200 inhalations. It is recommended to prime the inhaler before using for the first time and in cases where the inhaler has not been used for more than 2 weeks by releasing four “test sprays” into the air, away from the face. This product does not contain chlorofluorocarbons (CFCs) as the propellant. Chemical Structure

Albuterol Sulfate Syrup contains albuterol sulfate, USP, the racemic form of albuterol and a relatively selective beta 2 -adrenergic bronchodilator. Albuterol sulfate has the chemical name α 1 -[( tert -butylamino)methyl]-4-hydroxy- m -xylene-α,α'-diol sulfate (2:1) (salt) and the following chemical structure: Albuterol sulfate is a white or practically white powder freely soluble in water and slightly soluble in alcohol, in chloroform, and in ether per USP definition. The World Health Organization recommended name for albuterol base is salbutamol. Albuterol Sulfate Syrup for oral administration contains 2 mg of albuterol as 2.4 mg of albuterol sulfate in each teaspoonful (5 mL). Albuterol Sulfate Syrup also contains the inactive ingredients Citric Acid, FD&C Yellow No. 6, Hypromellose, Purified Water, Sodium Benzoate, Sodium Citrate, Sorbitol Solution and Strawberry Flavor. The pH of the syrup is 3.5 to 4.5. image description

The active component of Albuterol Sulfate Inhalation Aerosol is albuterol sulfate, USP racemic α 1 [( tert- Butylamino)methyl]-4-hydroxy- m -xylene-α,α'-diol sulfate (2:1)(salt), a relatively selective beta 2 -adrenergic bronchodilator having the following chemical structure: Albuterol sulfate is the official generic name in the United States. The World Health Organization recommended name for the drug is salbutamol sulfate. The molecular weight of albuterol sulfate is 576.7, and the empirical formula is (C 13 H 21 NO 3 ) 2 •H 2 SO 4 . Albuterol sulfate is a white to off-white crystalline solid. It is soluble in water and slightly soluble in ethanol. Albuterol Sulfate Inhalation Aerosol is a pressurized metered-dose aerosol unit for oral inhalation. It contains a microcrystalline suspension of albuterol sulfate in propellant HFA-134a (1,1,1,2-tetrafluoroethane), ethanol, and oleic acid. Each actuation delivers 120 mcg albuterol sulfate, USP from the valve and 108 mcg albuterol sulfate, USP from the mouthpiece (equivalent to 90 mcg of albuterol base from the mouthpiece). Each canister provides 200 inhalations. It is recommended to prime the inhaler before using for the first time and in cases where the inhaler has not been used for more than 2 weeks by releasing four “test sprays” into the air, away from the face. This product does not contain chlorofluorocarbons (CFCs) as the propellant. Chemical Structure

Montelukast sodium USP, the active ingredient in montelukast sodium tablets, USP is a selective and orally active leukotriene receptor antagonist that inhibits the cysteinyl leukotriene CysLT 1 receptor. Montelukast sodium USP is described chemically as [R-(E)]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl] cyclopropaneacetic acid, monosodium salt. The empirical formula is C 35 H 35 CINNaO 3 S, and its molecular weight is 608.17. The structural formula is: Montelukast sodium USP is a hygroscopic, optically active, white or almost white powder. Montelukast sodium USP is freely soluble in water and methylene chloride, freely soluble to very soluble in alcohol. Each 10 mg film-coated montelukast sodium tablet USP contains 10.4 mg montelukast sodium USP, which is equivalent to 10 mg of montelukast, and the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate, mannitol and microcrystalline cellulose. The tablets are coated with opadry yellow which contains carnauba wax, hydroxypropyl cellulose, hypromellose, red iron oxide, titanium dioxide and yellow iron oxide. Figure1.jpg

Montelukast sodium, the active ingredient in montelukast sodium tablets USP and montelukast sodium oral granules USP, is a selective and orally active leukotriene receptor antagonist that inhibits the cysteinyl leukotriene CysLT 1 receptor. Montelukast sodium is described chemically as [ R-(E) ]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl] cyclopropaneacetic acid, monosodium salt. The empirical formula is C 35 H 35 ClNNaO 3 S, and its molecular weight is 608.18. The structural formula is: Montelukast sodium is a hygroscopic, optically active, white to off-white powder. Montelukast sodium is freely soluble in ethanol, methanol, and water and practically insoluble in acetonitrile. Each 10-mg film-coated montelukast sodium tablet USP contains 10.4 mg montelukast sodium, which is equivalent to 10 mg of montelukast, and the following inactive ingredients: croscarmellose sodium, ferric oxide red, ferric oxide yellow, hydroxypropyl cellulose, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose and titanium dioxide. Each 4-mg and 5-mg chewable montelukast sodium tablet USP contains 4.2 and 5.2 mg montelukast sodium, respectively, which are equivalent to 4 and 5 mg of montelukast, respectively. Both chewable tablets contain the following inactive ingredients: aspartame, cellulose microcrystalline, cherry flavor, croscarmellose sodium, ferric oxide red, magnesium stearate, mannitol. Each packet of Montelukast sodium oral granules USP 4 mg contains 4.16 mg Montelukast sodium USP, which is equivalent to 4 mg of montelukast. The oral granule formulation contains the following inactive ingredients: mannitol, hydroxypropyl cellulose, tribasic sodium phosphate and magnesium stearate. str

Montelukast sodium USP, the active ingredient in montelukast sodium tablets USP and montelukast sodium chewable tablets USP, is a selective and orally active leukotriene receptor antagonist that inhibits the cysteinyl leukotriene CysLT 1 receptor. Montelukast sodium is described chemically as [R-(E)]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl] cyclopropaneacetic acid, monosodium salt. The molecular formula is C 35 H 35 ClNNaO 3 S, and its molecular weight is 608.18. The structural formula is: Montelukast sodium is a hygroscopic, optically active, white to off-white powder. Montelukast sodium is freely soluble in water and in methylene chloride, freely soluble to very soluble in ethanol (96%). Each 10-mg film coated montelukast sodium tablet contains 10.4 mg of montelukast sodium, which is equivalent to 10 mg of montelukast, and the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate, mannitol, and microcrystalline cellulose. The film coating consists of: carnauba wax, ferric oxide red, ferric oxide yellow, hydroxypropyl cellulose, hydroxypropyl methylcellulose, and titanium dioxide. Each 4-mg and 5-mg montelukast sodium chewable tablet contains 4.2 and 5.2 mg montelukast sodium, respectively, which are equivalent to 4 and 5 mg of montelukast, respectively. Both chewable tablets contain the following inactive ingredients: aspartame, cherry flavor, croscarmellose sodium, ferric oxide yellow, hydroxypropyl cellulose, magnesium stearate, mannitol, and microcrystalline cellulose. Structure

Montelukast sodium, USP the active ingredient in montelukast sodium chewable tablets, is a selective and orally active leukotriene receptor antagonist that inhibits the cysteinyl leukotriene CysLT 1 receptor. Montelukast sodium, USP is described chemically as 1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl) ethenyl] phenyl]-3-[2- (1-hydroxy-1-methylethyl) phenyl] propyl] thio] methyl] cyclopropane acetic acid, sodium salt. The empirical formula is C 35 H 35 ClNNaO 3 S, and its molecular weight is 608.17. The structural formula is: Montelukast sodium, USP is a hygroscopic, optically active, white or almost white colored powder. Montelukast sodium, USP is freely soluble in water and in methylene chloride, freely soluble to very soluble in alcohol. Each 4-mg and 5-mg chewable montelukast sodium tablets contain 4.16 and 5.2 mg montelukast sodium USP, respectively, which are equivalent to 4 mg and 5 mg of montelukast, respectively. Both chewable tablets contain the following inactive ingredients: art cherry flavor, aspartame, croscarmellose sodium, ferric oxide red, hydroxypropyl cellulose, magnesium stearate, mannitol and microcrystalline cellulose. structure

Gabapentin is described as 1-(aminomethyl) cyclohexaneacetic acid with a molecular formula of C 9 H 17 NO 2 and a molecular weight of 171.24. Gabapentin is a white to off-white crystalline solid with a pK a1 of 3.7 and a pK a2 of 10.7. It is freely soluble in water and both basic and acidic aqueous solutions. The log of the partition coefficient (n-octanol/0.05M phosphate buffer) at pH 7.4 is -1.25. It has the following structural formula: Gabapentin capsules, USP are for oral administration and contain 100 mg, 300 mg and 400 mg of gabapentin. In addition, each capsule contains the following inactive ingredients: croscarmellose sodium and magnesium stearate. The 100 mg, 300 mg and 400 mg capsule imprinting ink contains the following inactive ingredients: black iron oxide E172; butyl alcohol; dehydrated alcohol; isopropyl alcohol; potassium hydroxide; propylene glycol; purified water; shellac E904 and strong ammonia solution. The 100 mg capsule shell contains gelatin and titanium dioxide. The 300 mg capsule shell contains gelatin, titanium dioxide and yellow iron oxide. The 400 mg capsule shell contains gelatin, red iron oxide, titanium oxide and yellow iron oxide. gaba-structure.jpg

The active ingredient in gabapentin capsules and tablets, USP is gabapentin, which has the chemical name 1-(aminomethyl)cyclohexaneacetic acid. The molecular formula of gabapentin is C 9 H 17 NO 2 and the molecular weight is 171.24. The structural formula of gabapentin is: Gabapentin, USP is a white to off-white crystalline solid with a pK a1 of 4.72±0.10 and a pK a2 of 10.27±0.29. It is freely soluble in water and both basic and acidic aqueous solutions. The log of the partition coefficient is -1.083±0.235 at 25°C temperature. Each gabapentin capsule contains 100 mg, 300 mg or 400 mg of gabapentin, USP and the following inactive ingredients: pregelatinized starch (maize), and talc. The 100 mg capsule shell contains gelatin, sodium lauryl sulfate (SLS) and titanium dioxide. The 300 mg capsule shell contains gelatin, titanium dioxide, FD&C Red 40, D&C Yellow 10, and sodium lauryl sulfate (SLS). The 400 mg capsule shell contains gelatin, titanium dioxide, sodium lauryl sulfate (SLS), D&C Yellow 10, and FD&C Red 40. The imprinting ink contains shellac, dehydrated alcohol, isopropyl alcohol, butyl alcohol, propylene glycol, strong ammonia solution, black iron oxide, and potassium hydroxide. Each gabapentin tablet contains 600 mg or 800 mg of gabapentin, USP and the following inactive ingredients: poloxamer 407, mannitol, magnesium stearate, hydroxypropyl cellulose, talc, copovidone, crospovidone, colloidal silicon dioxide and coating agent contains hypromellose, titanium dioxide, polyethylene glycol and talc. Gabapentin Structural Formula

The active ingredient in gabapentin capsules and tablets, USP is gabapentin, which has the chemical name 1-(aminomethyl)cyclohexaneacetic acid. The molecular formula of gabapentin is C 9 H 17 NO 2 and the molecular weight is 171.24. The structural formula of gabapentin is: Gabapentin, USP is a white to off-white crystalline solid with a pK a1 of 4.72±0.10 and a pK a2 of 10.27±0.29. It is freely soluble in water and both basic and acidic aqueous solutions. The log of the partition coefficient is -1.083±0.235 at 25°C temperature. Each gabapentin capsule contains 100 mg, 300 mg or 400 mg of gabapentin, USP and the following inactive ingredients: pregelatinized starch (maize), and talc. The 100 mg capsule shell contains gelatin, sodium lauryl sulfate (SLS) and titanium dioxide. The 300 mg capsule shell contains gelatin, titanium dioxide, FD&C Red 40, D&C Yellow 10, and sodium lauryl sulfate (SLS). The 400 mg capsule shell contains gelatin, titanium dioxide, sodium lauryl sulfate (SLS), D&C Yellow 10, and FD&C Red 40. The imprinting ink contains shellac, dehydrated alcohol, isopropyl alcohol, butyl alcohol, propylene glycol, strong ammonia solution, black iron oxide, and potassium hydroxide. Each gabapentin tablet contains 600 mg or 800 mg of gabapentin, USP and the following inactive ingredients: poloxamer 407, mannitol, magnesium stearate, hydroxypropyl cellulose, talc, copovidone, crospovidone, colloidal silicon dioxide and coating agent contains hypromellose, titanium dioxide, polyethylene glycol and talc. Gabapentin Structural Formula