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Ritalin LA

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Ritalin LA

Ritalin LA®
(methylphenidate hydrochloride) Extended-release Capsules

Ritalin LA

DRUG DESCRIPTION

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

Ritalin LA® (methylphenidate hydrochloride) extended-release capsules is an extended-release formulation of methylphenidate with a bi-modal release profile. Ritalin LA® uses the proprietary SODAS® (Spheroidal Oral Drug Absorption System) technology. Each bead-filled Ritalin LA 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. Ritalin LA 10, 20, 30, and 40 mg capsules provide in a single dose the same amount of methylphenidate as dosages of 5, 10, 15, or 20 mg of Ritalin® tablets given b.i.d.

The active substance in Ritalin LA is methyl α-phenyl-2-piperidineacetate hydrochloride, and its structural formula is

Ritalin LA® (methylphenidate hydrochloride) Structural Formula Illustration

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.

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).

What are the possible side effects of methylphenidate?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop taking methylphenidate and call your doctor at once if you have a serious side effect such as:

  • fast, pounding, or uneven heartbeats;
  • feeling like you might pass out;
  • fever, sore throat, and headache with a severe blistering, peeling, and red skin rash;
  • aggression, restlessness, hallucinations, unusual behavior, or motor tics (muscle twitches);
  • easy bruising, purple spots on your...

Read All Potential Side Effects and See Pictures of Ritalin LA »

What are the precautions when taking methylphenidate hydrochloride extended-release capsules (Ritalin LA)?

Before taking methylphenidate, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: high blood pressure, glaucoma, heart problems (such as irregular heartbeat, heart failure, previous heart attack, problems with heart structure), family history of heart problems (such as sudden cardiac death, irregular heartbeat), mental/mood conditions (especially anxiety, tension, agitation), personal/family history of mental/mood disorders (such as bipolar disorder, depression, psychosis), personal/family history of...

Read All Potential Precautions of Ritalin LA »

Last reviewed on RxList: 6/14/2013
This monograph has been modified to include the generic and brand name in many instances.

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Ritalin LA - User Reviews

Ritalin LA User Reviews

Now you can gain knowledge and insight about a drug treatment with Patient Discussions.

Here is a collection of user reviews for the medication Ritalin LA sorted by most helpful. Patient Discussions FAQs

Report Problems to the Food and Drug Administration

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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