mayne pharma - Medication Listings

ANNOVERA (segesterone acetate and ethinyl estradiol vaginal system) is a toroidal- shaped (ring), nonbiodegradable, flexible, opaque white vaginal system containing two active components, a progestin, segesterone acetate, and an estrogen, ethinyl estradiol. When placed in the vagina, each ANNOVERA releases an approximate average 0.15 mg/day of segesterone acetate and 0.013 mg/day of ethinyl estradiol over the 21 days in-use period of each cycle for up to 13 cycles (total of 273 days). Each cycle is 28 days, with 21 days in and 7 days out. The inactive ingredients are dibutyltin dilaurate, silicone elastomers, silicone medical adhesive, and titanium dioxide. The elastomers are all methyl siloxane-based polymers. The vaginal system body has an overall diameter of 56 mm and a cross-sectional diameter of 8.4 mm. It contains two channels of approximately 3.0 mm diameter and 27 mm length into which steroid-containing cores are inserted. Each ANNOVERA contains 103 mg of SA distributed throughout both cores and 17.4 mg of EE distributed throughout only one core. The core containing 40% SA and 12% EE of its mass is 3 mm in diameter and 18 mm in length. The core containing 50% SA of its mass is 3 mm in diameter and 11 mm in length. Contact between the cores and the vaginal system body is fixed by coating the channels with silicone medical adhesive before introducing the cores. After insertion of the cores, the channels are sealed with the silicone medical adhesive. The structural formulas, and properties for the active components are shown below: STRUCTURAL FORMULAS: Segesterone Acetate (SA) Ethinyl Estradiol (EE) PROPERTIES: Established Name: Segesterone Acetate Chemical Name: 16-methylene-17α-acetoxy-19-nor-pregn-4-ene-3,20-dione Molecular Formula: C 23 H 30 O 4 Molecular Weight: 370.5 Physical Form: White, or yellowish white powder Solubility: Slightly soluble in n-hexane, soluble in ethyl acetate and methanol, freely soluble in acetone (USP classification) Melting Point: 173°C–177°C Established Name: Ethinyl Estradiol Chemical Name: 19-Nor-17α -pregna-1,3,5(10)-trien-20-yne-3,17-diol Molecular Formula: C 20 H 24 O 2 Molecular Weight: 296.4 Physical Form: White to slightly ye ll owish-white crysta ll ine powder Solubility: Practically insoluble in water, freely soluble in alcohol, it dissolves in alkaline solution Melting Point: 181°C–185°C The steroids diffuse out of the vaginal system with release rates that vary over time. Based on in vitro data, the daily release rates of SA and EE are higher during each initial 24–48 hours of use achieving a somewhat lower steady-state with continued use over the subsequent days in each cycle. The vaginal system is designed to be used for 13 cycles (1 year) on a 21/7 days in/out schedule. The total in-use time with the 21/7 days in/out schedule over 13 cycles is 273 days. Based on the residual amount of drug in vaginal systems used in clinical trials over 13 cycles, a total of 41.3 mg of SA and 3.4 mg of EE are released over this period. This translates to an approximate average daily dose of 0.15 mg of segesterone acetate and 0.013 mg of ethinyl estradiol with higher release rate expected at the beginning of dosing and a lower release rate toward the end. Chemical Structure Chemical Structure

BIJUVA (estradiol and progesterone) is an oval shaped opaque capsule in which the estradiol is solubilized and the progesterone is micronized and suspended in the mixture of medium chain mono and di-glycerides and lauroyl polyoxyl-32 glycerides. Each 0.5 mg/100 mg capsule is light pink on one side, dark pink on the other side, and printed with "5C1" in white ink. Each 1 mg/100 mg capsule is light pink on one side, dark pink on the other side, and printed with "1C1" in white ink. Estradiol (estra-1,3,5 (10)-triene-3,17β-diol), an estrogen, has a molecular weight of 272.38, and chemical formula C 18 H 24 O 2 . Progesterone (pregn-4-ene-3, 20-dione) has a molecular weight of 314.47, and chemical formula C 21 H 30 O 2 . The structural formulas are as follows: Estradiol Progesterone Each BIJUVA (estradiol and progesterone) capsule contains the following inactive ingredients: ammonium hydroxide, ethanol, ethyl acetate, FD&C Red #40, gelatin, glycerin, hydrolyzed gelatin, isopropyl alcohol, lauroyl polyoxyl-32 glycerides, lecithin, medium chain mono and di- glycerides, medium chain triglycerides, polyethylene glycol, polyvinyl acetate phthalate, propylene glycol, purified water, and titanium dioxide. Chemical Structure Chemical Structure

Butalbital, acetaminophen and caffeine are supplied in capsule form for oral administration. Each capsule contains: Butalbital ................... 50 mg Warning: May be habit-forming. Acetaminophen ........ 325 mg Caffeine ...................... 40 mg In addition, each capsule contains the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, magnesium stearate and microcrystalline cellulose with capsule shell composed of gelatin and titanium dioxide. Imprinting ink composed of n-butyl alcohol, pharmaceutical glaze modified in SD-45, propylene glycol, SDA-3A alcohol, titanium dioxide, D&C Yellow No. 10 Aluminum Lake and FD&C Blue No. 1 Aluminum Lake. Butalbital (5-allyl-5-isobutylbarbituric acid), a slightly bitter, white, odorless, crystalline powder, is a short to intermediate-acting barbiturate. It has the following structural formula: C 11 H 16 N 2 O 3 MW = 224.26 Acetaminophen (4'-hydroxyacetanilide), a slightly bitter, white, odorless, crystalline powder, is a non-opiate, non-salicylate analgesic and antipyretic. It has the following structural formula: C 8 H 9 NO 2 MW = 151.16 Caffeine (1,3,7-trimethylxanthine), a bitter, white powder or white-glistening needles, is a central nervous system stimulant. It has the following structural formula: C 8 H 10 N 4 O 2 MW = 194.19 butalbital chemical structure acetaminophen chemical structure caffeine chemical structure

Calcipotriene foam contains the compound calcipotriene, a synthetic vitamin D3 analog, in an aqueous-based emulsion foam vehicle for topical dermatologic use. Chemically, calcipotriene is (5Z,7E,22E,24S)-24-cyclopropyl-9,10-secochola-5,7,10(19), 22-tetraene- 1α,3β,24-triol. The structural formula is represented below: Molecular Formula: C27H40O3 Molecular Weight: 412.6 Calcipotriene is a white or off-white crystalline substance. Calcipotriene foam contains calcipotriene 50 mcg/g in an aqueous-based emulsion foam vehicle consisting of cetyl alcohol, dibasic sodium phosphate, dl-α-tocopherol, edetate disodium, isopropyl myristate, light mineral oil, polyoxyl 20 cetostearyl ether, propylene glycol, purified water, stearyl alcohol, and white petrolatum. Calcipotriene foam is dispensed from an aluminum can pressurized with a hydrocarbon (propane/n-butane/isobutane) propellant. Chemical Structure

Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/3.75% is a combination product with two active ingredients in a white to off-white, opaque, smooth, aqueous gel formulation intended for topical use. Clindamycin phosphate is a water-soluble ester of the semisynthetic antibiotic produced by a 7(S)-chloro-substitution of the 7(R)-hydroxyl group of the parent antibiotic lincomycin. The chemical name for clindamycin phosphate is Methyl 7-chloro-6,7,8-trideoxy-6-(1-methyl-trans-4-propyl-L-2-pyrrolidinecarboxamido)-1-thio-L-threo-α-D-galacto-octopyranoside 2-(dihydrogen phosphate). The structural formula for clindamycin phosphate is represented below: Clindamycin phosphate: Molecular Formula: C 18 H 34 ClN 2 O 8 PS Molecular Weight: 504.97 Benzoyl peroxide is an antibacterial and keratolytic agent. The structural formula for benzoyl peroxide is represented below: Benzoyl peroxide: Molecular Formula: C 14 H 10 O 4 Molecular Weight: 242.23 Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/3.75% contains the following inactive ingredients: carbomer 980, potassium hydroxide, propylene glycol, and purified water. Each gram of Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/3.75% contains 12 mg (1.2%) clindamycin phosphate, equivalent to 10 mg (1%) clindamycin, and 37.5 mg (3.75%) benzoyl peroxide. Clindamycin Phosphate Chemical Structure Benzoyl Peroxide Chemical Structure

Dapsone gel, 5% contains dapsone, a sulfone, in an aqueous gel base for topical dermatologic use. Dapsone gel, 5% is a gritty translucent material with visible drug substance particles. Chemically, dapsone has an empirical formula of C 12 H 12 N 2 O 2 S. It is a white, odorless crystalline powder that has a molecular weight of 248. Dapsone's chemical name is 4,4'- diaminodiphenylsulfone and its structural formula is: Each gram of Dapsone gel, 5% contains 50 mg of dapsone, USP, in a gel of carbomer homopolymer type C, diethylene glycol monoethyl ether, methylparaben, sodium hydroxide, and purified water. Chemical Structure

Diltiazem hydrochloride is a calcium ion cellular influx inhibitor (slow channel blocker or calcium antagonist). Chemically, diltiazem hydrochloride is 1,5-Benzothiazepin-4(5H)-one, 3-(acetyloxy)-5-[2-(dimethylamino) ethyl]-2, 3-dihydro-2-(4-methoxyphenyl)-, monohydrochloride, (+)-cis-. The chemical structure is Diltiazem hydrochloride is a white to off-white crystalline powder with a bitter taste. It is soluble in water, methanol, and chloroform. It has a molecular weight of 450.98. Each Diltiazem Hydrochloride Extended-Release Capsule, USP contains either 60 mg diltiazem hydrochloride (equivalent to 55.1 mg diltiazem), 90 mg diltiazem hydrochloride (equivalent to 82.7 mg diltiazem), or 120 mg diltiazem hydrochloride (equivalent to 110.3 mg diltiazem). Also contains: sucrose, povidone, hypromellose, methacrylic acid copolymer, diethyl phthalate, FD&C Red No. 40, titanium dioxide, gelatin, black ink. The 90 mg also contains FD&C Red No. 3. For oral administration. FDA approved dissolution test specifications differ from USP. Chemical Structure

FABIOR (tazarotene) Foam, 0.1% contains the compound tazarotene, a member of the acetylenic class of retinoids. It is for topical use only. Chemically, tazarotene is ethyl 6-[(4,4-dimethylthiochroman-6-yl)ethynyl]nicotinate. The structural formula is represented below: Molecular Formula: C 21 H 21 NO 2 S Molecular Weight: 351.46 Tazarotene is a pale yellow to yellow substance. FABIOR Foam contains tazarotene, 1 mg/g, in aqueous-based white to off-white foam vehicle consisting of butylated hydroxytoluene, ceteareth-12, citric acid anhydrous, diisopropyl adipate, light mineral oil, potassium citrate monohydrate, potassium sorbate, purified water, and sorbic acid. FABIOR Foam is dispensed from an aluminum can pressurized with a hydrocarbon (propane/n-butane/isobutane) propellant. Chemical Structure

Halobetasol Propionate Topical Foam is a hydroethanolic aerosol foam that contains a corticosteroid, halobetasol propionate. The chemical name of halobetasol propionate is 21-chloro-6α, 9-difluoro-11β, 17-dihydroxy-16β-methylpregna-1, 4-diene-3,20-dione 17-propionate. Halobetasol propionate is a white to off-white crystalline powder with a molecular weight of 484.96 and a molecular formula of C 25 H 31 ClF 2 O 5 . It has the following structural formula: It is practically insoluble in water and freely soluble in dichloromethane and in acetone. Each gram of Halobetasol Propionate Topical Foam contains 0.5 mg of halobetasol propionate in a white to off-white foam base consisting of alcohol (dehydrated), benzoic acid, cetostearyl alcohol, emulsifying wax, polyoxyl 20 cetostearyl ether, propylene glycol and purified water. Halobetasol Propionate Topical Foam is dispensed from an aluminum can pressurized with a hydrocarbon (isobutane and propane) propellant. Chemical Structure

IMVEXXY (estradiol vaginal inserts) are small, light pink, tear-shaped, vaginal inserts for manual placement into the vagina. Inserts contain 4 mcg or 10 mcg of estradiol, an estrogen. Each insert is imprinted in white ink on one side with "04" or "10" corresponding to the insert's dosage strength. IMVEXXY vaginal inserts are used intravaginally. When the insert comes in contact with the vaginal mucosa, estradiol is released into the vagina. Estradiol is chemically described as estra-1,3,5 (10)-triene-3,17β-diol. The chemical formula is C 18 H 24 O 2 with a molecular weight of 272.38. The structural formula is: IMVEXXY (estradiol vaginal inserts) contain the following inactive ingredients: ammonium hydroxide, ethanol, ethyl acetate, ethylene glycol palmitostearate, FD&C Red #40, gelatin, glycerin, isopropyl alcohol, lecithin, medium chain triglycerides, polyethylene glycol, polyethylene glycol stearates, polyvinyl acetate phthalate, propylene glycol, purified water, sorbitol-sorbitan solution, and titanium dioxide. FDA approved acceptance criteria for assay, organic impurities, and dissolution tolerances differ from the USP test. Chemical Structure

Isotretinoin capsules, USP contain 10 mg, 20 mg or 30 mg of isotretinoin (a retinoid) in soft gelatin capsules for oral administration. In addition to the active ingredient, isotretinoin USP, each capsule contains the following inactive ingredients: butylated hydroxyanisole, disodium edetate, hydrogenated vegetable oil Type I, hydrogenated vegetable oil Type II, soybean oil, vitamin E and yellow wax. The gelatin capsules contain the following: 10 mg – glycerin, iron oxide (yellow), sorbitol and titanium dioxide 20 mg – glycerin, iron oxide (red), sorbitol and titanium dioxide 30 mg – glycerin, iron oxide (red and yellow), ferrosoferric oxide, sorbitol and titanium dioxide Chemically, isotretinoin is 13- cis -retinoic acid and is related to both retinoic acid and retinol (vitamin A). It is a yellow to orange crystalline powder with a molecular weight of 300.44. It is practically insoluble in water, soluble in chloroform and sparingly soluble in alcohol and in isopropyl alcohol. The structural formula is: Meets USP Dissolution Test 6. Chemical Structure

Isotretinoin capsules, USP contain 40 mg of isotretinoin (a retinoid) in soft gelatin capsules for oral administration. In addition to the active ingredient, isotretinoin USP, each capsule contains the following inactive ingredients: butylated hydroxyanisole, disodium edetate, hydrogenated vegetable oil Type I, hydrogenated vegetable oil Type II, soybean oil, vitamin E and yellow wax. The gelatin capsules contain glycerin, iron oxide (red and yellow), ferrosoferric oxide, sorbitol and titanium dioxide. Chemically, isotretinoin is 13- cis -retinoic acid and is related to both retinoic acid and retinol (vitamin A). It is a yellow to orange crystalline powder with a molecular weight of 300.44. It is practically insoluble in water, soluble in chloroform and sparingly soluble in alcohol and in isopropyl alcohol. The structural formula is: Meets USP Dissolution Test 6. Chemical Structure

Isotretinoin, a retinoid, is available as isotretinoin capsules in 10-mg, 20-mg, 30-mg and 40-mg soft gelatin capsules for oral administration. Each capsule contains yellow wax, butylated hydroxyanisole, edetate disodium, hydrogenated vegetable oil, tocopherol, and soybean oil. Gelatin capsules contain gelatin, glycerin and non-crystallizing sorbitol solution, with the following dye systems: 10 mg - ferric oxide (yellow) and titanium dioxide; 20 mg - titanium dioxide; 30 mg - titanium dioxide and ferric oxide (red); 40 mg - FD&C Yellow No. 6 and titanium dioxide. The edible imprinting ink for all the capsules contains: shellac glaze, dehydrated alcohol, isopropyl alcohol, iron oxide black, N-butyl alcohol, propylene glycol, and ammonium hydroxide. Meets USP Dissolution Test 6. Chemically, isotretinoin is 13- cis -retinoic acid and is related to both retinoic acid and retinol (vitamin A). It is a yellow to orange crystalline powder with a molecular weight of 300.44. The structural formula is: Chemical Structure

LEXETTE is a hydroethanolic aerosol foam that contains a corticosteroid, halobetasol propionate. The chemical name of halobetasol propionate is 21-chloro-6α, 9-difluoro-11β, 17-dihydroxy-16β-methylpregna-1, 4-diene-3,20-dione 17-propionate. Halobetasol propionate is a white to off-white crystalline powder with a molecular weight of 484.96 and a molecular formula of C 25 H 31 ClF 2 O 5 . It has the following structural formula: It is practically insoluble in water and freely soluble in dichloromethane and in acetone. Each gram of LEXETTE contains 0.5 mg of halobetasol propionate in a white to off-white foam base consisting of alcohol (dehydrated), benzoic acid, cetostearyl alcohol, emulsifying wax, polyoxyl 20 cetostearyl ether, propylene glycol and purified water. LEXETTE is dispensed from an aluminum can pressurized with a hydrocarbon (isobutane and propane) propellant. halobetasol propionate chemical structure

Methylphenidate hydrochloride extended-release capsules (LA) contains methylphenidate hydrochloride USP, a CNS stimulant. Methylphenidate hydrochloride extended-release capsules (LA) is an extended-release formulation of methylphenidate for oral administration with a bi-modal release profile. Each bead-filled methylphenidate hydrochloride extended-release capsule (LA) contains half the dose as immediate-release beads and half as enteric-coated beads, thus providing an immediate release of methylphenidate and a second delayed release of methylphenidate. The active substance in methylphenidate hydrochloride extended-release capsules (LA) is methyl α-phenyl-2-piperidineacetate hydrochloride, and its structural formula is Methylphenidate hydrochloride USP is a white, odorless, fine crystalline powder. Its solutions are acid to litmus. It is freely soluble in water and in methanol, soluble in alcohol, and slightly soluble in chloroform and in acetone. Its molecular weight is 269.77 g/mol. Inactive ingredients: Sugar spheres (which contain sucrose and starch (corn)), hypromellose, cellulose acetate butyrate, hypromellose acetate succinate, acetyltributyl citrate, acetone, talc, and purified water. Opaque gelatin capsules contain: titanium dioxide and gelatin. The 10mg capsule contains FD&C Green#3, FD&C#40, and FD&C Yellow #6. The 30 and 40 mg capsules contain D&C Red #28 and FD&C Blue #1. The 60 mg capsules contain iron oxide yellow and sodium lauryl sulfate. The capsules are imprinted with black ink which contains black iron oxide, shellac and potassium hydroxide. The 60 mg black imprinting ink also contains ammonium hydroxide and propylene glycol. Chemical Structure

NEXTSTELLIS ® (drospirenone and estetrol tablets) is an oral contraceptive. It is supplied in a transparent PVC/aluminum blister card containing 28 tablets: 24 pink active tablets contain 3 mg drospirenone and 14.2 mg of estetrol on the anhydrous basis. Drospirenone is a synthetic progestin and estetrol is a synthetic estrogen. 4 white inert tablets. The chemical name for estetrol is estra-1,3,5(10)-triene-3,15α,16α,17α-tetrol monohydrate. It has a molecular formula of C 18 H 24 O 4 ∙H 2 O and a molecular weight of 322.4 g/mol, equivalent to 304.4 g/mol (anhydrous). Estetrol has the following chemical structure: Estetrol (monohydrate) is a white to off-white crystalline solid that is poorly soluble in water and aqueous solutions. It is soluble in methanol, ethanol, sparingly soluble in acetone, and slightly soluble in ethyl acetate and acetonitrile. Drospirenone is chemically described as (6R,7R,8R,9S,10R,13S,14S,15S,16S,17S)-1,3',4',6,6a,7,8,9,10,11,12,13,14,15,15a,16-hexadecahydro10,13-dimethylspiro-[17H-dicyclopropa-[6,7:15,16]cyclopenta[a]phenanthrene-17,2'(5H)-furan]-3,5'(2H)-dione). It has a molecular weight of 366.5 g/mol, a molecular formula of C 24 H 30 O 3 , and the structural formula below: Drospirenone is a white to almost white or slightly yellow crystalline powder. It is a neutral molecule with slight solubility in water. The active tablet is a 6 mm, round pink film-coated tablet which contains 3 mg of drospirenone and 15 mg of estetrol as the monohydrate, equivalent to 14.2 mg of estetrol on the anhydrous basis, and the following inactive ingredients: corn starch, lactose monohydrate, magnesium stearate, povidone, and sodium starch glycolate. Each tablet is embossed on one side with a drop-shaped logo. The pink film-coating has the following inactive ingredients: hydrogenated cottonseed oil, hydroxypropyl cellulose, hypromellose, iron oxide red, talc, and titanium dioxide. The inert tablet is a 6 mm, round white film-coated tablet which contains the inactive ingredients corn starch, lactose monohydrate, and magnesium stearate. Each tablet is embossed on one side with a drop-shaped logo. The film-coating has the following inactive ingredients: hydrogenated cottonseed oil, hydroxypropyl cellulose, hypromellose, talc, and titanium dioxide. Chemical Structure Chemical Structure

RHOFADE ® (oxymetazoline hydrochloride) cream, 1% contains oxymetazoline hydrochloride, an alpha 1A adrenoceptor agonist. RHOFADE is a white to off-white cream. It has a chemical name of 3-[(4,5-Dihydro1H-imidazol-2-yl)methyl]-6-(1,1-dimethylethyl)- 2,4-dimethyl-phenol hydrochloride and a molecular weight of 296.8. It is freely soluble in water and ethanol and has a partition coefficient of 0.1 in 1-octanol/water. The molecular formula of oxymetazoline HCl is C 16 H 25 ClN 2 O and its structural formula is: Each gram of RHOFADE ® (oxymetazoline hydrochloride) cream contains 10 mg (1%) oxymetazoline hydrochloride, equivalent to 8.8 mg (0.88%) of oxymetazoline free base. The cream contains the following inactive ingredients: sodium citrate dihydrate, citric acid anhydrous, disodium edetate dihydrate, butylated hydroxytoluene, anhydrous lanolin, medium chain triglycerides, diisopropyl adipate, oleyl alcohol, polyethylene glycol 300, PEG-6 stearate, glycol stearate, PEG-32 stearate, cetostearyl alcohol, ceteareth-6, stearyl alcohol, ceteareth-25, methylparaben, propylparaben, phenoxyethanol, and purified water. Chemical Structure

SOLTAMOX (tamoxifen citrate) oral solution is for oral administration. Tamoxifen citrate is an estrogen agonist/antagonist. Chemically, tamoxifen is the trans-isomer of a triphenylethylene derivative. The chemical name is (Z)2-[4-(1,2- diphenyl-1-butenyl)phenoxy]- N , N -dimethylethanamine 2-hydroxy-1,2,3- propanetricarboxylate (1:1). The structural formula, empirical formula, and molecular weight are as follows: C 32 H 37 NO 8 M.W. 563.62 Tamoxifen citrate has a pKa′ of 8.85. The equilibrium solubility in water at 37°C is 0.5 mg/mL, and is 0.2 mg/mL in 0.02 N HCl at 37°C. Each 10 mL of SOLTAMOX oral solution contains 20 mg tamoxifen, equivalent to 30.4 mg tamoxifen citrate. The oral solution is a sugar-free, clear colorless liquid, with licorice and aniseed odor and taste supplied in a 150 mL bottle with a dosing cup. SOLTAMOX oral solution contains the following inactive ingredients: ethanol, glycerol, propylene glycol, sorbitol solution, licorice flavor, aniseed flavor, purified water. Chemical Structure

SORILUX Foam contains the compound calcipotriene, a synthetic vitamin D3 analog, in an aqueous-based emulsion foam vehicle for topical dermatologic use. Chemically, calcipotriene is (5Z,7E,22E,24S)-24-cyclopropyl-9,10-secochola-5,7,10(19), 22-tetraene- 1α,3β,24-triol. The structural formula is represented below: Molecular Formula: C27H40O3 Molecular Weight: 412.6 Calcipotriene is a white or off-white crystalline substance. SORILUX Foam contains calcipotriene 50 mcg/g in an aqueous-based emulsion foam vehicle consisting of cetyl alcohol, dibasic sodium phosphate, dl-α-tocopherol, edetate disodium, isopropyl myristate, light mineral oil, polyoxyl 20 cetostearyl ether, propylene glycol, purified water, stearyl alcohol, and white petrolatum. SORILUX Foam is dispensed from an aluminum can pressurized with a hydrocarbon (propane/n-butane/isobutane) propellant. Chemical Structure

Tazarotene cream, 0.1% is for topical use and contains the active ingredient, tazarotene. Each gram of tazarotene cream, 0.1% contains 1 mg of tazarotene, in a white cream base. Tazarotene is a member of the acetylenic class of retinoids. Chemically, tazarotene is ethyl 6-[(4,4-dimethylthiochroman- 6-yl)ethynyl]nicotinate. The compound has an empirical formula of C 21 H 21 NO 2 S and molecular weight of 351.46. The structural formula is shown below: Tazarotene cream contains the following inactive ingredients: benzyl alcohol 1%; carbomer copolymer type A; carbomer homopolymer type B; edetate disodium; medium chain triglycerides; mineral oil; purified water; sodium hydroxide; sodium thiosulfate; and sorbitan monooleate. Chemical Structure

Tretinoin gel (microsphere), 0.08%, is a white to very pale yellow opaque gel for topical treatment of acne vulgaris. Chemically, tretinoin is all-trans-retinoic acid, also known as (all-E)-3,7-dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraenoic acid. It is a member of the retinoid class of compounds and a metabolite of naturally occurring Vitamin A. Tretinoin has a molecular weight of 300.44, a molecular formula of C 20 H 28 O 2 and the following chemical structure: Each gram of tretinoin gel (microsphere), 0.08%, contains 0.8 mg of tretinoin. The formulation uses acrylate copolymer microsphere system to enable inclusion of the active ingredient, tretinoin, in an aqueous gel. Other components consist of benzyl alcohol, butylated hydroxytoluene, carbomer 974P, cyclomethicone and dimethicone copolyol, disodium EDTA, glycerin, PPG-20 methyl glucose ether distearate, propylene glycol, propylene glycol dicaprylate/dicaprate, purified water, sorbic acid, and trolamine. Chemical Structure