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  • The atypical antipsychotic medication Seroquel, a brand name for quetiapine, comes in tablets of 25 milligrams, 100 milligrams, 200 milligrams, or 300 milligrams. The medication treats schizophrenia, autism, bipolar disorder, and psychosis.

    Dosage

    According to the University of Maryland Medical Center, doctors typically start patients on a lower dose of Seroquel and work up from there. Children may take 100 to 350 milligrams per day for autism or up to 450 milligrams per day for psychosis. Adults may take from 300 to 800 milligrams per day for schizophrenia or 400 to 800 milligrams per day for mania. Elderly patients should only take a maximum of 200 milligrams per day.

    Dosage Instructions

    Take the medication as directed by your doctor. It may take two to three weeks before the medication begins to function fully. Do not cease dosing without your doctor's permission.

    Side Effects

    Seroquel carries less risk than most antipsychotics of causing serious central nervous system symptoms called extrapyramidal side effects. Common side effects include dizziness, agitation, weight gain, headache and drowsiness.

    Drug Interactions

    Antifungals such as fluconazole may increase the concentration of Seroquel in the blood to dangerous levels. CNS depressants, including antidepressants and benzodiazepines, should be monitored if taken concurrently because of a risk of extreme sedation.

    Warning

    Elderly patients suffering dementia should not take Seroquel. The medication has not been approved for this purpose and may cause potentially fatal cardiovascular problems. Children and young adults may experience suicidal thoughts as a side effect of this medication.

    Source:

    University of Maryland Medical Center: Quetiapine

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