What If I Take an Overdose?

People who take too much Risperdal may have overdose symptoms that could include:
  • Drowsiness
  • A rapid heart rate (tachycardia)
  • Low blood pressure (hypotension)
  • Shakiness, uncontrollable muscle contractions, or other unusual body movements
  • An irregular heart rhythm (arrhythmia)
  • Seizures
  • Loss of life.
If you happen to take too much, seek immediate medical attention.
(Click Risperdal Overdose for more information.)

How Should Risperdal Be Stored?

Risperdal should be stored at room temperature, away from moisture and heat. The tablets and liquid should be stored in an airtight container. Keep Risperdal M-Tabs in their original foil packaging until just before use.
Keep this and all other medications out of the reach of children.

What Should I Do If I Miss a Dose?

If you do not take your Risperdal as scheduled, take your missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not take a double dose.

Available Strengths

Risperdal tablets are available in the following strengths:
  • Risperdal 0.25 mg
  • Risperdal 0.5 mg
  • Risperdal 1 mg
  • Risperdal 2 mg
  • Risperdal 3 mg
  • Risperdal 4 mg.
Orally disintegrating Risperdal M-Tabs are available in the following strengths:
  • Risperdal M-Tab 0.5 mg
  • Risperdal M-Tab 1 mg
  • Risperdal M-Tab 2 mg
  • Risperdal M-Tab 3 mg
  • Risperdal M-Tab 4 mg.
There is also a 0.25 mg orally disintegrating tablet for generic (but not brand-name) Risperdal. Risperdal liquid comes in one strength -- Risperdal Oral Solution 1 mg per mL.
A long-acting injectable form (Risperdal Consta®) is also available.
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Risperdal Medication

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