May 22, 2017
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Fanapt Patient Information Including Side Effects

Brand Names: Fanapt

Generic Name: iloperidone (Pronunciation: EYE loe PER i done)

What is iloperidone (Fanapt)?

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

Iloperidone is used to treat schizophrenia.

Iloperidone may also be used for purposes not listed in this medication guide.

Fanapt 1 mg

round, white, imprinted with LOGO, 1

Fanapt 10 mg

round, white, imprinted with LOGO, 10

Fanapt 12 mg

round, white, imprinted with LOGO, 12

Fanapt 2 mg

round, white, imprinted with LOGO, 2

Fanapt 4 mg

round, white, imprinted with LOGO, 4

Fanapt 6 mg

round, white, imprinted with LOGO, 6

Fanapt 8 mg

round, white, imprinted with LOGO, 8

What are the possible side effects of iloperidone (Fanapt)?

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 this medication and call your doctor at once if you have a serious side effect such as:

  • headache with chest pain and severe dizziness, fainting, fast or pounding heartbeats;
  • very stiff (rigid) muscles, high fever, sweating, confusion, fast or uneven heartbeats, tremors, feeling like you might pass out;
  • twitching or uncontrollable movements of your eyes, lips, tongue, face, arms, or legs;
  • high blood sugar (increased thirst, increased urination, hunger, dry mouth, fruity breath odor, drowsiness, dry skin, blurred vision, weight loss);
  • thoughts about suicide or hurting yourself;
  • fever, chills, body aches, flu symptoms, sores in your mouth and throat;
  • seizure (convulsions);
  • urinating less than usual or not at all;
  • trouble swallowing; or
  • penis erection that is painful or lasts 4 hours or longer.

Less serious side effects may include:

  • dizziness, drowsiness, tired feeling;
  • dry mouth, stuffy nose;
  • breast swelling or discharge;
  • weight gain; or
  • changes in menstrual periods.

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.

Read the Fanapt (iloperidone tablets) Side Effects Center for a complete guide to possible side effects

What is the most important information I should know about iloperidone (Fanapt)?

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

Before you take iloperidone, tell your doctor about all your medical conditions.

While you are taking iloperidone, 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 iloperidone.

Iloperidone may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.

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

Stop using iloperidone and call your doctor at once if you have very stiff (rigid) muscles, high fever, sweating, confusion, fast or uneven heartbeats, tremors, restless muscle movements in your face or neck, tremor (uncontrolled shaking), trouble swallowing, or feeling like you might pass out.

If you have stopped taking iloperidone for any reason, talk with your doctor before you start taking it again. You may need to restart the medication at a lower dose.

Side Effects Centers

Fanapt - User Reviews

Fanapt 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 Fanapt 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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