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What is the difference between "LA" and "CD" in methylphenidate?

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DzooBaby 27 Nov 2012

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.
Ritalin LA® (methylphenidate hydrochloride) extended-release capsules is an extended-release formulation of methylphenidate with a bi-modal release profile. Ritalin LA® (methylphenidate hydrochloride extended-release capsules) uses the proprietary SODAS® (Spheroidal Oral Drug Absorption System) technology. Each bead-filled Ritalin LA (methylphenidate hydrochloride extended-release capsules) capsule contains half the dose as immediate-release beads and half as enteric-coated, delayed-release beads, thus providing an immediate release of methylphenidate and a second delayed release of methylphenidate.

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