Drugs Similar to METHYLPHENIDATE

Methylphenidate transdermal system is an adhesive-based matrix transdermal system containing methylphenidate that is applied to intact skin. The chemical name for methylphenidate is α-phenyl-2-piperidineacetic acid methyl ester. It is a white to off-white powder and is soluble in alcohol, ethyl acetate, and ether. Methylphenidate is practically insoluble in water and petrol ether. Its molecular weight is 233.31. Its empirical formula is C 14 H 19 NO 2 . The structural formula of methylphenidate is: Transdermal System Components Methylphenidate transdermal system contains methylphenidate in a polyisobutylene adhesive. The composition per unit area of all dosage strengths is identical, and the total dose delivered is dependent on the transdermal system size and wear time. Methylphenidate transdermal system consists of four layers, as seen in the figure below (cross-section of the transdermal system) Proceeding from the outer surface toward the surface adhering to the skin, the layers are (1) a polyester/ethylene vinyl acetate laminate film backing and white ink which contains acrylic polymers, polyethylene wax, polytetrafluoroethylene, polyvinylpyrrolidone, sodium dioctyl sulfosuccinate and titanium dioxide, (2) a solid matrix drug reservoir of methylphenidate, polyisobutylene adhesive, mineral oil and hydrophobic colloidal silica, (3) a skin contact adhesive formulation of polyisobutylene adhesive, mineral oil and hydrophobic colloidal silica, and (4) a fluoropolymer-coated polyester protective liner, which is attached to the adhesive surface and must be removed before the transdermal system can be used. The active component of the transdermal system is methylphenidate. The remaining components are pharmacologically inactive. Methylphenidate transdermal systems are packaged with an additional piece of protective film above the system within each pouch. This piece of protective film is removed and discarded at the time of use. Methylphenidate Structural Formula Four layers of patch and cross-section of the patch

Methylphenidate hydrochloride extended-release capsules are CNS stimulant. Methylphenidate hydrochloride extended-release capsules is an extended-release formulation of methylphenidate for oral administration with a bi-modal release profile. Each bead-filled methylphenidate hydrochloride extended-release capsule 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 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: ammonio methacrylate copolymer, black iron oxide (10 and 40 mg capsules only), gelatin, methacrylic acid copolymer, polyethylene glycol, red iron oxide (10 and 40 mg capsules only), sugar spheres, talc, titanium dioxide, triethyl citrate, and yellow iron oxide (10, 30, and 40 mg capsules only). Ritalin LA structural formula.

Methylphenidate hydrochloride oral solution contains methylphenidate hydrochloride a CNS stimulant. It is available as 5 mg/5 mL and 10 mg/5 mL strengths for oral administration. Chemically, methylphenidate hydrochloride 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. Each mL of methylphenidate hydrochloride oral solution 5 mg/5 mL contains 1 mg of methylphenidate hydrochloride USP. Each mL of methylphenidate hydrochloride oral solution 10 mg/5 mL contains 2 mg of methylphenidate hydrochloride USP. Methylphenidate hydrochloride oral solution also contains the following inactive ingredients: artificial grape flavor, glycerin, hydrochloric acid, maltitol syrup, propylene glycol, purified water, sodium hydroxide, and sorbitol. Hydrochloric acid may be added to adjust pH. figure01chemicalstructure

COTEMPLA XR-ODT contains methylphenidate, a central nervous system (CNS) stimulant. COTEMPLA XR-ODT is an extended-release orally disintegrating tablet intended for once daily administration. COTEMPLA XR-ODT contains approximately 25% immediate-release and 75% extended-release methylphenidate. Methylphenidate is ionically-bound to the sulfonate of polystyrene sulfonate particles. COTEMPLA XR-ODT contains 8.6 mg, 17.3 mg or 25.9 mg of methylphenidate which is the same as the amount of methylphenidate (base equivalent) found, respectively, in 10 mg, 20 mg and 30 mg strength methylphenidate hydrochloride products. The chemical name of methylphenidate is methyl α-phenyl-2-piperidineacetate, and its structural formula is shown in Figure 1. Figure 1: Methylphenidate Structure C 14 H 19 NO 2 Mol. Wt. 233.31 COTEMPLA XR-ODT also contains the following inactive ingredients: Mannitol, Fructose, Microcrystalline Cellulose, Crospovidone, Methacrylic Acid, Polystyrene Sulfonate, Citric Acid, Colloidal Silicon Dioxide, Grape Flavor, Natural Masking Type Powder, Triethyl Citrate, Magnesium Stearate, Ethylcellulose, Sucralose, Lake Blend Purple, and Polyethylene Glycol 3350. Figure 1

DAYTRANA is an adhesive-based matrix transdermal system containing methylphenidate that is applied to intact skin. The chemical name for methylphenidate is α-phenyl-2-piperidineacetic acid methyl ester. It is a white to off-white powder and is soluble in alcohol, ethyl acetate, and ether. Methylphenidate is practically insoluble in water and petrol ether. Its molecular weight is 233.31. Its empirical formula is C 14 H 19 NO 2 . The structural formula of methylphenidate is: Transdermal System Components DAYTRANA contains methylphenidate in a multipolymeric adhesive. The methylphenidate is dispersed in acrylic adhesive that is dispersed in a silicone adhesive. The composition per unit area of all dosage strengths is identical, and the total dose delivered is dependent on the transdermal system size and wear time. DAYTRANA consists of three layers, as seen in the figure below (cross-section of the transdermal system). Proceeding from the outer surface toward the surface adhering to the skin, the layers are (1) a polyester/ethylene vinyl acetate laminate film backing, (2) a proprietary adhesive formulation incorporating Noven Pharmaceuticals, Inc.'s DOT Matrix™ transdermal technology consisting of an acrylic adhesive, a silicone adhesive, and methylphenidate, and (3) a fluoropolymer-coated polyester protective liner, which is attached to the adhesive surface and must be removed before the transdermal system can be used. The active component of the transdermal system is methylphenidate. The remaining components are pharmacologically inactive. daytrana-structure daytrana-figure-section

Methylphenidate transdermal system is an adhesive-based matrix transdermal system containing methylphenidate that is applied to intact skin. The chemical name for methylphenidate is α-phenyl-2-piperidineacetic acid methyl ester. It is a white to off-white powder and is soluble in alcohol, ethyl acetate, and ether. Methylphenidate is practically insoluble in water and petrol ether. Its molecular weight is 233.31. Its empirical formula is C 14 H 19 NO 2 . The structural formula of methylphenidate is: Transdermal System Components Methylphenidate transdermal system contains methylphenidate in a polyisobutylene adhesive. The composition per unit area of all dosage strengths is identical, and the total dose delivered is dependent on the transdermal system size and wear time. Methylphenidate transdermal system consists of four layers, as seen in the figure below (cross-section of the transdermal system) Proceeding from the outer surface toward the surface adhering to the skin, the layers are (1) a polyester/ethylene vinyl acetate laminate film backing and white ink which contains acrylic polymers, polyethylene wax, polytetrafluoroethylene, polyvinylpyrrolidone, sodium dioctyl sulfosuccinate and titanium dioxide, (2) a solid matrix drug reservoir of methylphenidate, polyisobutylene adhesive, mineral oil and hydrophobic colloidal silica, (3) a skin contact adhesive formulation of polyisobutylene adhesive, mineral oil and hydrophobic colloidal silica, and (4) a fluoropolymer-coated polyester protective liner, which is attached to the adhesive surface and must be removed before the transdermal system can be used. The active component of the transdermal system is methylphenidate. The remaining components are pharmacologically inactive. Methylphenidate transdermal systems are packaged with an additional piece of protective film above the system within each pouch. This piece of protective film is removed and discarded at the time of use. Methylphenidate Structural Formula Four layers of patch and cross-section of the patch

Methylphenidate hydrochloride extended-release capsules are CNS stimulant. Methylphenidate hydrochloride extended-release capsules is an extended-release formulation of methylphenidate for oral administration with a bi-modal release profile. Each bead-filled methylphenidate hydrochloride extended-release capsule 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 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: ammonio methacrylate copolymer, black iron oxide (10 and 40 mg capsules only), gelatin, methacrylic acid copolymer, polyethylene glycol, red iron oxide (10 and 40 mg capsules only), sugar spheres, talc, titanium dioxide, triethyl citrate, and yellow iron oxide (10, 30, and 40 mg capsules only). Ritalin LA structural formula.

Methylphenidate Transdermal System is an adhesive-based matrix transdermal system containing methylphenidate that is applied to intact skin. The chemical name for methylphenidate is α-phenyl-2-piperidineacetic acid methyl ester. It is a white to off-white powder and is soluble in alcohol, ethyl acetate, and ether. Methylphenidate is practically insoluble in water and petrol ether. Its molecular weight is 233.31. Its empirical formula is C 14 H 19 NO 2 . The structural formula of methylphenidate is: Transdermal System Components Methylphenidate Transdermal System contains methylphenidate in a multipolymeric adhesive. The methylphenidate is dispersed in acrylic adhesive that is dispersed in a silicone adhesive. The composition per unit area of all dosage strengths is identical, and the total dose delivered is dependent on the transdermal system size and wear time. Methylphenidate Transdermal System consists of three layers, as seen in the figure below (cross-section of the transdermal system). Proceeding from the outer surface toward the surface adhering to the skin, the layers are (1) a polyester/ethylene vinyl acetate laminate film backing, (2) a proprietary adhesive formulation incorporating Noven Pharmaceuticals, Inc.'s DOT Matrix™ transdermal technology consisting of an acrylic adhesive, a silicone adhesive, and methylphenidate, and (3) a fluoropolymer-coated polyester protective liner, which is attached to the adhesive surface and must be removed before the transdermal system can be used. The active component of the transdermal system is methylphenidate. The remaining components are pharmacologically inactive. structure patch

CONCERTA ® is a central nervous system (CNS) stimulant. CONCERTA is available in four tablet strengths. Each extended-release tablet for once-a-day oral administration contains 18, 27, 36, or 54 mg of methylphenidate HCl USP and is designed to have a 12-hour duration of effect. Chemically, methylphenidate HCl is d,l (racemic) methyl α-phenyl-2-piperidineacetate hydrochloride. Its empirical formula is C 14 H 19 NO 2 ∙HCl. Its structural formula is: Methylphenidate HCl USP is a white, odorless 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. CONCERTA also contains the following inert ingredients: butylated hydroxytoluene, carnauba wax, cellulose acetate, hypromellose, lactose, phosphoric acid, poloxamer, polyethylene glycol, polyethylene oxides, povidone, propylene glycol, sodium chloride, stearic acid, succinic acid, synthetic iron oxides, titanium dioxide, and triacetin. Chemical Structure 11.1 System Components and Performance CONCERTA uses osmotic pressure to deliver methylphenidate HCl at a controlled rate. The system, which resembles a conventional tablet in appearance, comprises an osmotically active trilayer core surrounded by a semipermeable membrane with an immediate-release drug overcoat. The trilayer core is composed of two drug layers containing the drug and excipients, and a push layer containing osmotically active components. There is a precision-laser drilled orifice on the drug-layer end of the tablet. In an aqueous environment, such as the gastrointestinal tract, the drug overcoat dissolves within one hour, providing an initial dose of methylphenidate. Water permeates through the membrane into the tablet core. As the osmotically active polymer excipients expand, methylphenidate is released through the orifice. The membrane controls the rate at which water enters the tablet core, which in turn controls drug delivery. Furthermore, the drug release rate from the system increases with time over a period of 6 to 7 hours due to the drug-concentration gradient incorporated into the two drug layers of CONCERTA. The biologically inert components of the tablet remain intact during gastrointestinal transit and are eliminated in the stool as a tablet shell along with insoluble core components. It is possible that CONCERTA extended-release tablets may be visible on abdominal x-rays under certain circumstances, especially when digital enhancing techniques are utilized.

Methylphenidate hydrochloride extended-release capsules are CNS stimulant. Methylphenidate hydrochloride extended-release capsules is an extended-release formulation of methylphenidate for oral administration with a bi-modal release profile. Each bead-filled methylphenidate hydrochloride extended-release capsule 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 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: ammonio methacrylate copolymer, black iron oxide (10 and 40 mg capsules only), gelatin, methacrylic acid copolymer, polyethylene glycol, red iron oxide (10 and 40 mg capsules only), sugar spheres, talc, titanium dioxide, triethyl citrate, and yellow iron oxide (10, 30, and 40 mg capsules only). Ritalin LA structural formula.

Ritalin contains methylphenidate hydrochloride, a CNS stimulant. It is available as tablets of 5 mg, 10 mg, and 20 mg strengths for oral administration. Methylphenidate hydrochloride 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. Ritalin tablets contains the following inactive ingredients: D&C Yellow No. 10 (5-mg and 20-mg tablets), FD&C Green No. 3 (10-mg tablets), lactose, magnesium stearate, polyethylene glycol, starch (5-mg and 10-mg tablets), sucrose, talc, and tragacanth (20-mg tablets). Methylphenidate hydrochloride structural formula.

Ritalin contains methylphenidate hydrochloride, a CNS stimulant. It is available as tablets of 5 mg, 10 mg, and 20 mg strengths for oral administration. Methylphenidate hydrochloride 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. Ritalin tablets contains the following inactive ingredients: D&C Yellow No. 10 (5-mg and 20-mg tablets), FD&C Green No. 3 (10-mg tablets), lactose, magnesium stearate, polyethylene glycol, starch (5-mg and 10-mg tablets), sucrose, talc, and tragacanth (20-mg tablets). Methylphenidate hydrochloride structural formula.

APTENSIO XR contains methylphenidate hydrochloride, a central nervous system (CNS) stimulant. APTENSIO XR capsules contain multi layered beads, which are composed of an immediate-release layer which contains approximately 40% of the methylphenidate dose, and a controlled release layer which contains approximately 60% of the methylphenidate dose. APTENSIO XR is available in seven capsule strengths. Each extended-release capsule for once-a-day oral administration contains 10 mg, 15 mg, 20 mg, 30 mg, 40 mg, 50 mg, or 60 mg of methylphenidate HCl USP, which is equivalent to 8.6 mg, 13.0 mg, 17.3 mg, 25.9 mg, 34.6 mg, 43.2 mg, or 51.9 mg of methylphenidate free base, respectively. Chemically, methylphenidate HCl is d,l (racemic) methyl α-phenyl-2-piperidineacetate hydrochloride. Its molecular formula is C 14 H 19 NO 2 ∙HCl. Its structural formula is: Methylphenidate hydrochloride USP is a white to off-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. Inactive Ingredients: ammonio methacrylate copolymer, type B; colloidal silicon dioxide (added if necessary); gelatin; hypromelloses; methacrylic acid copolymer, type C; polyethylene glycol; sugar spheres; talc; titanium oxide; and triethyl citrate. Each strength capsule also contains colorant ingredients in the capsule shell as follows: 10 mg: FD&C Blue No. 1 15 mg: D&C Red No. 28, D&C Yellow No. 10, FD&C Red No. 40 20 mg: D&C Red No. 33, D&C Yellow No. 10 30 mg: FD&C Blue No. 1, FD&C Red No. 3 40 mg: D&C Red No. 28, FD&C Blue No. 1, FD&C Red No. 40 50 mg: D&C Yellow No. 10, FD&C Green No. 3 60 mg: Black Iron Oxide Chemical Structure

JORNAY PM contains methylphenidate hydrochloride, a central nervous system (CNS) stimulant. Methylphenidate hydrochloride is a white, odorless crystalline powder. Its aqueous solutions are acidic. It is freely soluble in water and in methanol, soluble in alcohol, and slightly soluble in chloroform and in acetone. The chemical name of methylphenidate hydrochloride is d,l (racemic) methyl α-phenyl-2-piperidineacetate hydrochloride. Its molecular formula is C 14 H 19 NO 2 •HCl and the molecular weight is 269.77. Its structural formula is The molecular formula of the free base is C 14 H 19 NO 2 and its molecular weight is 233.31. JORNAY PM extended-release capsules contain beads with two functional film coatings (outer delayed-release and inner extended-release) surrounding a drug core coated with methylphenidate hydrochloride. The outer, delayed-release coating delays the initial release of methylphenidate while the inner extended-release coating controls the release throughout the day. JORNAY PM is available as extended-release capsules for oral use in five strengths. Each capsule contains 20 mg, 40 mg, 60 mg, 80 mg, or 100 mg of methylphenidate hydrochloride, which is equivalent to 17.4 mg, 34.8 mg, 52.2 mg, 69.6 mg, or 87.0 mg of methylphenidate free base, respectively. JORNAY PM capsules also contain the following inactive ingredients: dibutyl sebacate, diglycerides, ethylcellulose, hydroxypropyl cellulose, hypromellose, magnesium stearate, methacrylic acid copolymer Type B, microcrystalline cellulose, monoglycerides, polysorbate 80, and talc. The capsule shell of 20 and 40 mg strength capsules is made of FD&C Blue #1, hypromellose, titanium dioxide, yellow iron oxide, and black ink for the imprint. The capsule shell of 60 and 80 mg strength capsules is made of FD&C Blue #1, hypromellose, titanium dioxide, and black ink for the imprint. The capsule shell of 100 mg strength capsule is made of black iron oxide, FD&C Blue #1, hypromellose, red iron oxide, titanium dioxide, and black ink, and white ink for the imprint. Structural Formula

METADATE CD contains methylphenidate hydrochloride, a CNS stimulant. The extended-release capsules comprise both immediate-release (IR) and extended-release (ER) beads such that 30% of the dose is provided by the IR component and 70% of the dose is provided by the ER component. METADATE CD is available in six capsule strengths containing 10 mg (3 mg IR; 7 mg ER), 20 mg (6 mg IR; 14 mg ER), 30 mg (9 mg IR; 21 mg ER), 40 mg (12 mg IR; 28 mg ER), 50 mg (15 mg IR; 35 mg ER), or 60 mg (18 mg IR; 42 mg ER) of methylphenidate hydrochloride for oral administration. Chemically, methylphenidate HCl is d , l (racemic)- threo -methyl α-phenyl-2-piperidineacetate hydrochloride. Its empirical formula is C14H19NO2•HCl. Its structural formula is: Methylphenidate HCl USP is a white, odorless, 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. METADATE CD also contains the following inactive ingredients: Dibutyl sebacate, ethylcellulose aqueous dispersion, gelatin, hydroxypropylmethylcellulose, polyethylene glycol, povidone, sugar spheres, and titanium dioxide. The individual capsules contain the following color agents: 10 mg capsules: FD&C Blue No. 2, FDA/E172 Yellow Iron Oxide 20 mg capsules: FD&C Blue No. 2 30 mg capsules: FD&C Blue No. 2, FDA/E172 Red Iron Oxide 40 mg capsules: FDA/E172 Yellow Iron Oxide 50 mg capsules: FD&C Blue No. 2, FDA/E172 Red Iron Oxide structural formula

Methylin contains methylphenidate hydrochloride a CNS stimulant. It is available as an oral solution in 5 mg/5 mL and 10 mg/5 mL strengths for oral administration. Chemically, methylphenidate hydrochloride is ( d,l (racemic) methyl α-phenyl-2-piperidineacetate hydrochloride and its structural formula is: Methylphenidate hydrochloride 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. Each mL of Methylin 5 mg/5 mL contains 1 mg of methylphenidate hydrochloride USP. Each mL of Methylin 10 mg/5 mL contains 2 mg of methylphenidate hydrochloride USP. Methylin also contains the following inactive ingredients: citric acid anhydrous, glycerin, N&A grape flavor, PEG 1450, and purified water. Chemical Structure

Methylphenidate hydrochloride oral solution contains methylphenidate hydrochloride a CNS stimulant. It is available as 5 mg/5 mL and 10 mg/5 mL strengths for oral administration. Chemically, methylphenidate hydrochloride 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. Each mL of methylphenidate hydrochloride oral solution 5 mg/5 mL contains 1 mg of methylphenidate hydrochloride USP. Each mL of methylphenidate hydrochloride oral solution 10 mg/5 mL contains 2 mg of methylphenidate hydrochloride USP. Methylphenidate hydrochloride oral solution also contains the following inactive ingredients: artificial grape flavor, glycerin, hydrochloric acid, maltitol syrup, propylene glycol, purified water, sodium hydroxide, and sorbitol. Hydrochloric acid may be added to adjust pH. figure01chemicalstructure

Methylphenidate hcl oral solution is a mild central nervous system (CNS) stimulant available as 5 mg /5 mL and 10 mg /5 mL oral solutions for oral administration. Methylphenidate hydrochloride 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. Each mL of methylphenidate hcl oral solution 5 mg /5 mL contains 1 mg of methylphenidate hydrochloride USP. Each mL of methylphenidate hcl oral solution 10 mg /5 mL contains 2 mg of methylphenidate hydrochloride USP. In addition, methylphenidate hcl oral solution also contains the following inactive ingredients: phosphoric acid, glycerin, N&A grape flavor, PEG 1450, and purified water.

Methylphenidate hydrochloride tablets contain methylphenidate hydrochloride, a CNS stimulant. They are available as tablets of 5 mg, 10 mg, and 20 mg strengths for oral administration. Methylphenidate hydrochloride 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. Methylphenidate hydrochloride tablets contain the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, and talc. Note : Methylphenidate hydrochloride tablets are color-additive free. Chemical Structure

Methylphenidate hydrochloride extended-release tablets, USP are a central nervous system (CNS) stimulant. Methylphenidate hydrochloride extended-release tablets are available in one tablet strength. Each extended-release tablet for once-a-day oral administration contains 72 mg of methylphenidate HCl, USP and is designed to have a 12-hour duration of effect. Chemically, methylphenidate HCl is d,l (racemic) methyl α-phenyl-2-piperidineacetate hydrochloride. Its molecular formula is C 14 H 19 NO 2 •HCl. Its structural formula is: Methylphenidate HCl, USP is a white, odorless 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. Methylphenidate hydrochloride extended-release tablets, USP contain the following inactive ingredients: cellulose acetate, colloidal silicon dioxide, FD&C Blue No. 1, FD&C Red No. 40 Aluminum Lake, hypromellose, lactose monohydrate, phosphoric acid, polyethylene glycol, polyethylene oxide, povidone, sodium chloride, stearic acid, succinic acid, talc, titanium dioxide and triacetin. The printing ink also contains: black iron oxide, and shellac glaze. This product meets USP dissolution test 2. Structure 11.1 System Components and Performance Methylphenidate hydrochloride extended-release tablets uses osmotic pressure to deliver methylphenidate HCl at a controlled rate. The system, which resembles a conventional tablet in appearance, comprises an osmotically active bilayer core surrounded by a semipermeable membrane with an immediate-release drug overcoat. The bilayer core is composed of a drug layer containing the drug and excipients, and a push layer containing osmotically active components. There is a precision-laser drilled orifice on the drug-layer end of the tablet. In an aqueous environment, such as the gastrointestinal tract, the drug overcoat dissolves within one hour, providing an initial dose of methylphenidate. Water permeates through the membrane into the tablet core. As the osmotically active polymer excipients expand, methylphenidate is released through the orifice. The membrane controls the rate at which water enters the tablet core, which in turn controls drug delivery. Furthermore, the drug release rate from the system increases with time over a period of 6 to 7 hours due to the drug-concentration gradient incorporated into the drug layer of core of methylphenidate hydrochloride extended-release tablets. The biologically inert components of the tablet remain intact during gastrointestinal transit and are eliminated in the stool as a tablet shell along with insoluble core components. It is possible that methylphenidate hydrochloride extended-release tablets may be visible on abdominal x-rays under certain circumstances, especially when digital enhancing techniques are utilized.

Methylphenidate hydrochloride tablets contain methylphenidate hydrochloride, USP a CNS stimulant. It is available as tablets of 5 mg, 10 mg, and 20 mg strengths for oral administration. Methylphenidate hydrochloride 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. Each tablet contains 5 mg, 10 mg, or 20 mg of methylphenidate hydrochloride, USP. Inactive ingredients include: lactose monohydrate, magnesium stearate, polyethylene glycol 8000, and talc. In addition, the 5 mg tablet contains FD&C blue No. 2 aluminum lake and FD&C red No. 40 aluminum lake, the 10 mg tablet contains FD&C blue No. 2 aluminum lake and D&C yellow No. 10 aluminum lake and the 20 mg tablet contains FD&C yellow No. 6 aluminum lake.

Methylphenidate hydrochloride oral solution is a CNS stimulant available as 5 mg/5 mL and 10 mg/5 mL strengths for oral administration. Chemically, Methylphenidate hydrochloride is ( d,l racemic) 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. Each mL of methylphenidate hydrochloride oral solution 5 mg/5 mL contains 1 mg of methylphenidate hydrochloride, USP. Each mL of methylphenidate hydrochloride oral solution 10 mg/5 mL contains 2 mg of methylphenidate hydrochloride, USP. In addition, methylphenidate hydrochloride oral solution also contains the following inactive ingredients: artificial grape flavor, glycerin, hydrochloric acid, polyethylene glycol 1450, and purified water.

Methylphenidate hydrochloride tablets, USP contain methylphenidate hydrochloride, a CNS stimulant. It is available as tablets of 5 mg, 10 mg, and 20 mg strengths for oral administration. Methylphenidate hydrochloride is methyl α-phenyl-2-piperidineacetate hydrochloride, and its structural formula is: Methylphenidate hydrochloride, USP is a white to off-white 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. Methylphenidate hydrochloride tablets, USP contain the following inactive ingredients: FD&C Blue# 2 (10-mg tablets), ferric oxide yellow (5-mg and 20-mg tablets), hypromellose, lactose monohydrate, microcrystalline cellulose, polyethylene glycol 8000, and stearic acid. FDA approved dissolution test specifications differ from USP. structural formula

Methylphenidate hydrochloride extended-release tablets, USP are a central nervous system (CNS) stimulant. Methylphenidate hydrochloride extended-release tablets, USP are available in five tablet strengths. Each extended-release tablet for once-a-day oral administration contains 18, 27, 36, 54, or 72 mg of methylphenidate HCl USP and is designed to have a 12-hour duration of effect. Chemically, methylphenidate HCl is d,l (racemic) methyl α-phenyl-2-piperidineacetate hydrochloride. Its empirical formula is C 14 H 19 NO 2 •HCl. Its structural formula is: Methylphenidate HCl USP is a white, odorless 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. Methylphenidate hydrochloride extended-release tablets, USP also contains the following inactive ingredients: black iron oxide, cellulose acetate, colloidal silicon dioxide, ferrosoferric oxide, hypromellose, lactose monohydrate, magnesium stearate, phosphoric acid, polyethylene glycol, polyethylene oxide, sodium chloride, succinic acid, titanium dioxide, triacetin. In addition, 27 mg tablets contain: FD&C Yellow #6 Aluminum Lake, FD&C Blue #2 Aluminum Lake, FD&C Red #40 Aluminum Lake 54 mg tablets contain: FD&C Yellow #6 Aluminum Lake, FD&C Red #40 Aluminum Lake, FD&C Blue #2 Aluminum Lake 72 mg tablets contain: FD&C Blue #1 Aluminum Lake FDA approved dissolution test specifications differ from USP structural formula 11.1 System Components and Performance Methylphenidate hydrochloride extended-release tablets use osmotic pressure to deliver methylphenidate HCl at a controlled rate. The system, which resembles a conventional tablet in appearance, comprises an osmotically active bilayer core surrounded by a semipermeable membrane with an immediate-release drug overcoat. The bilayer core is composed of a drug layer containing the drug and excipients, and a push layer containing osmotically active components. There is a precision-laser drilled orifice on the drug-layer end of the tablet. In an aqueous environment, such as the gastrointestinal tract, the drug overcoat dissolves within one hour, providing an initial dose of methylphenidate. Water permeates through the membrane into the tablet core. As the osmotically active polymer excipients expand, methylphenidate is released through the orifice. The membrane controls the rate at which water enters the tablet core, which in turn controls drug delivery. Furthermore, the drug release rate from the system increases with time over a period of 6 to 7 hours due to the drug-concentration gradient incorporated into the drug layer of core of methylphenidate hydrochloride extended-release tablets. The biologically inert components of the tablet remain intact during gastrointestinal transit and are eliminated in the stool as a tablet shell along with insoluble core components. It is possible that methylphenidate hydrochloride extended-release tablets may be visible on abdominal x-rays under certain circumstances, especially when digital enhancing techniques are utilized.

Methylphenidate hydrochloride tablets contain methylphenidate hydrochloride, a CNS stimulant. It is available as tablets of 5 mg, 10 mg, and 20 mg strengths for oral administration. Methylphenidate hydrochloride 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. Methylphenidate hydrochloride tablets contain the following inactive ingredients: lactose monohydrate, silicified microcrystalline cellulose, sodium lauryl sulfate, magnesium stearate and D&C Yellow #10 (5 mg and 20 mg tablets).

Methylphenidate hydrochloride oral solution contains methylphenidate hydrochloride a CNS stimulant. It is available as an oral solution in 5 mg/5 mL and 10 mg/5 mL strengths for oral administration. Chemically, methylphenidate hydrochloride is ( d,l (racemic) methyl α-phenyl-2-piperidineacetate hydrochloride and its structural formula is: Methylphenidate hydrochloride USP is a white to off white, 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. Each mL of methylphenidate hydrochloride oral solution 5 mg/5 mL contains 1 mg of methylphenidate hydrochloride USP. Each mL of methylphenidate hydrochloride oral solution 10 mg/5 mL contains 2 mg of methylphenidate hydrochloride USP. Methylphenidate hydrochloride oral solution also contains the following inactive ingredients: glycerin, polyethylene glycol 1450, concord grape flavor N&A, diluted hydrochloric acid (10%), and purified water.

Methylphenidate hydrochloride extended-release capsules contains methylphenidate hydrochloride, a CNS stimulant. Methylphenidate hydrochloride extended-release capsules is an extended-release formulation of methylphenidate for oral administration with a bi-modal release profile. Each bead-filled methylphenidate hydrochloride extended-release capsule 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 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: Acetyltributyl citrate, cellaburate, corn starch, gelatin, hypromellose acetate succinate, polyethylene glycol, sucrose, talc, and titanium dioxide. The 10 mg, 30 mg, 40 mg, and 60 mg capsules contain FD & C Yellow #6. The 10 mg, 30 mg, and 60 mg capsules also contain FD&C Yellow #5. The 40 mg and 60 mg capsules contain D&C Yellow #10. In addition, capsule printing ink contains ammonium hydroxide, black iron oxide, propylene glycol, and shellac glaze. methylphenidate-struct.jpg

Methylphenidate hydrochloride extended-release tablets, USP are a central nervous system (CNS) stimulant. Methylphenidate hydrochloride extended-release tablets, USP are available in four tablet strengths. Each extended-release tablet for once-a-day oral administration contains 18, 27, 36, or 54 mg of methylphenidate HCl, USP and is designed to have a 12-hour duration of effect. Chemically, methylphenidate HCl is d,l (racemic) methyl α-phenyl-2-piperidineacetate hydrochloride. Its molecular formula is C 14 H 19 NO 2 •HCl. Its structural formula is: Methylphenidate HCl, USP is a white, odorless 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. Methylphenidate hydrochloride extended-release tablets, USP contain the following inactive ingredients: black iron oxide, cellulose acetate, colloidal silicon dioxide, FD&C Red No. 40, FD&C Blue No. 2, hypromellose, phosphoric acid, poloxamer, polyethylene oxide, povidone, propylene glycol, shellac, sodium chloride, stearic acid, succinic acid, titanium dioxide, talc, triacetin, yellow iron oxide. The 54 mg extended-release tablets also contain red iron oxide. Structure 11.1 System Components and Performance Methylphenidate hydrochloride extended-release tablets uses osmotic pressure to deliver methylphenidate HCl at a controlled rate. The system, which resembles a conventional tablet in appearance, comprises an osmotically active trilayer core surrounded by a semipermeable membrane with an immediate-release drug overcoat. The trilayer core is composed of two drug layers containing the drug and excipients, and a push layer containing osmotically active components. There is a precision-laser drilled orifice on the drug-layer end of the tablet. In an aqueous environment, such as the gastrointestinal tract, the drug overcoat dissolves within one hour, providing an initial dose of methylphenidate. Water permeates through the membrane into the tablet core. As the osmotically active polymer excipients expand, methylphenidate is released through the orifice. The membrane controls the rate at which water enters the tablet core, which in turn controls drug delivery. Furthermore, the drug release rate from the system increases with time over a period of 6 to 7 hours due to the drug-concentration gradient incorporated into the two drug layers of methylphenidate hydrochloride extended-release tablets. The biologically inert components of the tablet remain intact during gastrointestinal transit and are eliminated in the stool as a tablet shell along with insoluble core components. It is possible that methylphenidate hydrochloride extended-release tablets may be visible on abdominal x-rays under certain circumstances, especially when digital enhancing techniques are utilized. FDA approved dissolution test specifications differ from USP.