Daytrana™ (methylphenidate transdermal system) is an adhesive-based matrix transdermal system (patch) that is applied to intact skin. The chemical name for methylphenidate is ?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 C14H19NO2. The structural formula of methylphenidate is:

Methylin® (methylphenidate HCl) is a mild central nervous system (CNS) stimulant, available as 2.5 mg, 5 mg and 10 mg chewable tablets for oral administration. Methylphenidate hydrochloride is methyl ? -phenyl-2-piperidineacetate hydrochloride, and its structural formula is

METADATE ER Tablets (methylphenidate hydrochloride extended-release tablets, USP) are a mild central nervous system (CNS) stimulant. METADATE ER (methylphenidate hydrochloride tablet) is available as extended-release tablets of 10 and 20 mg for oral administration.

CONCERTA® (methylphenidate extended-release tablets) is a central nervous system (CNS) stimulant. CONCERTA® (methylphenidate extended-release tablets) 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 HC1 USP and is designed to have a 12-hour duration of effect. Chemically, methylphenidate HC1 is d,l (racemic) methyl ?-phenyl-2-piperidineacetate hydrochloride. Its empirical formula is C14H19NO2•HCl. Its structural formula is:

METADATE CD (methylphenidate hydrochloride extended-release capsules) is a central nervous system (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 (methylphenidate hydrochloride extended-release capsules) 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.

Ritalin hydrochloride, methylphenidate hydrochloride USP, is a mild central nervous system (CNS) stimulant, available as tablets of 5,10, and 20 mg for oral administration; Ritalin (methylphenidate hcl) -SR is available as sustained-release tablets of 20 mg for oral administration. Methylphenidate hydrochloride is methyl ?-phenyl-2-piperidineacetate hydrochloride, and its structural formula is

Methylin™ methylphenidate HCI 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 ?-phenyl-2-piperidineacetate hydrochloride, and its structural formula is

Methylphenidate hydrochloride is a central nervous system (CNS) stimulant.