Health Information
Antipsychotics for Treating Schizophrenia
Side Effects
All medicines have side effects. But many people don't feel the side effects, or they are able to deal with them. Ask your pharmacist about the side effects of each medicine you take. Side effects are also listed in the information that comes with your medicine.
Here are some important things to think about:
- Usually the benefits of the medicine are more important than any minor side effects.
- Side effects may go away after you take the medicine for a while.
- If side effects still bother you and you wonder if you should keep taking the medicine, call your doctor. He or she may be able to lower your dose or change your medicine. Do not suddenly quit taking your medicine unless your doctor tells you to.
Call 911 or other emergency services right away if you have:
- Trouble breathing.
- Swelling of your face, lips, tongue, or throat.
Call your doctor if you have:
- Hives.
Reference Neuroleptic malignant syndrome Opens New Window (NMS) is an extremely rare but serious side effect that has been reported by people who take antipsychotic medicines. NMS causes life-threatening problems with your body's ability to regulate its temperatures.
Call 911 or other emergency services right away if you have a fever and:
- Muscle rigidity.
- Fast or irregular heartbeat.
- Rapid breathing.
- Severe sweating.
Other side effects of antipsychotic medicines include:
- Weight gain.
- Restlessness.
- Sleepiness.
- Reference High cholesterol Opens New Window or high blood sugar.
- Movement disorders, such as Reference tardive dyskinesia Opens New Window.
Managing side effects
It may take several attempts to find the right dose and medicine to treat your symptoms. Effectiveness and side effects for each medicine vary from person to person.
Some side effects are minor. You can manage these through lifestyle changes such as exercise, relaxation techniques, and diet changes. Other side effects can be more serious and require changes to the dose or type of medicine.
Clozapine may cause a rare but possibly life-threatening side effect called agranulocytosis, a problem that causes your body to make fewer white blood cells. Weekly blood cell tests are taken during the first 6 months of treatment with this medicine, every 2 weeks during the next 6 months of treatment, then monthly while on this medicine. This helps the doctor find this side effect early.
Talk to your doctor or pharmacist about drinking grapefruit juice while taking an antipsychotic medicine. Grapefruit juice can increase the level of these medicines in your blood. Having too much medicine in your blood increases the chances of having serious side effects.
See Drug Reference for a full list of side effects. (Drug Reference is not available in all systems.)
| By: | Reference Healthwise Staff | Last Revised: August 31, 2012 |
| Medical Review: | Reference Kathleen Romito, MD - Family Medicine
Reference Lisa S. Weinstock, MD - Psychiatry |
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This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Reference Terms of Use. Reference How this information was developed to help you make better health decisions.

