Medications and Drugs

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Brand Names: Risperdal, Risperdal M-Tab

Generic Name: risperidone (oral) (Pronunciation: ris PER i done)

• What is risperidone (Risperdal, Risperdal M-Tab)?
• What are the possible side effects of risperidone (Risperdal, Risperdal M-Tab)?
• What is the most important information I should know about risperidone (Risperdal, Risperdal M-Tab)?
• What should I discuss with my healthcare provider before taking risperidone (Risperdal, Risperdal M-Tab)?
• How should I take risperidone (Risperdal, Risperdal M-Tab)?
• What happens if I miss a dose (Risperdal, Risperdal M-Tab)?
• What happens if I overdose (Risperdal, Risperdal M-Tab)?
• What should I avoid while taking risperidone (Risperdal, Risperdal M-Tab)?
• What other drugs will affect risperidone (Risperdal, Risperdal M-Tab)?
• Where can I get more information?

What is risperidone (Risperdal, Risperdal M-Tab)?

Risperidone is an antipsychotic medication. It works by changing the effects of chemicals in the brain.

Risperidone is used to treat schizophrenia and symptoms of bipolar disorder (manic depression). Risperidone is also used in autistic children to treat symptoms of irritability.

Risperidone may also be used for purposes other than those listed in this medication guide.

Risperdal 0.25 mg

oblong, yellow, imprinted with RIS 0.25, JANSSEN

Risperdal 0.5 mg

oblong, pink, imprinted with JANSSEN, Ris 0.5

Risperdal 1 mg

oblong, white, imprinted with JANSSEN, R 1

Risperdal 2 mg

oblong, orange, imprinted with JANSSEN, R 2

Risperdal 3 mg

oblong, yellow, imprinted with JANSSEN, R 3

Risperdal 4 mg

oblong, green, imprinted with JANSSEN, R 4

Risperidone 0.25 mg-TEV

round, yellow, imprinted with 93, 221

Risperidone 0.5 mg-TEV

round, orange, imprinted with 93, 225

Risperidone 1 mg-TEV

round, white, imprinted with 93, 7240

Risperidone 2 mg-TEV

round, yellow, imprinted with 93, 7241

Risperidone 3 mg-TEV

round, yellow, imprinted with 93, 7242

Risperidone 4 mg-TEV

round, green, imprinted with 93, 7243

What are the possible side effects of risperidone (Risperdal, Risperdal M-Tab)?

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 using risperidone and call your doctor at once if you have any of these serious side effects:

• fever, stiff muscles, confusion, sweating, fast or uneven heartbeats;
• restless muscle movements in your eyes, tongue, jaw, or neck;
• tremor (uncontrolled shaking);
• fever, chills, body aches, flu symptoms;
• white patches or sores inside your mouth or on your lips;
• trouble swallowing; or
• feeling light-headed, fainting.

Less serious side effects may include:

• mild restlessness, drowsiness, or tremor;
• sleepiness, dreaming more than usual;
• blurred vision;
• dizziness or headache;
• weight gain;
• problems with urination;
• nausea, dry mouth, constipation; or
• decreased sex drive, impotence, or difficulty having an orgasm.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about risperidone (Risperdal, Risperdal M-Tab)?

Risperidone is not for use in psychotic conditions related to dementia. Risperidone may cause heart failure, sudden death, or pneumonia in older adults with dementia-related conditions.

Do not give this medication to a child without a doctor's advice.

While you are taking risperidone, you may be more sensitive to temperature extremes such as very hot or cold conditions. Avoid getting too cold, or becoming overheated or dehydrated. Drink plenty of fluids, especially in hot weather and during exercise. It is easier to become dangerously overheated and dehydrated while you are taking risperidone.

Risperidone can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.

Avoid drinking alcohol. It can increase some of the side effects of risperidone.

Stop using risperidone and call your doctor at once if you have fever, stiff muscles, confusion, sweating, fast or uneven heartbeats, restless muscle movements in your face or neck, tremor (uncontrolled shaking), trouble swallowing, feeling light-headed, or fainting.

There may be other drugs not listed that can affect risperidone. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.