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February 10, 2012

fluoxetine, Prozac, Sarafem (cont.)

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Fluoxetine may increase the effect of warfarin (Coumadin), leading to excessive bleeding. Warfarin therapy should be monitored more frequently in patients who are also taking fluoxetine. Combining SSRIs with aspirin, nonsteroidal anti-inflammatory drugs or other drugs that affect bleeding may increase the likelihood of upper gastrointestinal bleeding.

PREGNANCY: Use of fluoxetine during the third trimester of pregnancy may lead to adverse effects in the newborn.

NURSING MOTHERS: Fluoxetine is excreted in breast milk. Therefore, taking fluoxetine while nursing is not recommended.

SIDE EFFECTS: Fluoxetine, as with most antidepressants, can cause nausea, headaches, anxiety, insomnia, drowsiness, and loss of appetite. Fluoxetine has been implicated in serious skin rashes and vasculitis (inflammation of small blood vessels). Increased blood pressure can occur, and blood pressure should be monitored. Seizures have been reported as has sexual dysfunction. Some patients may experience withdrawal reactions upon stopping fluoxetine. Symptoms of withdrawal include anxiety, nausea, nervousness, and insomnia. The dose of fluoxetine should be gradually reduced when therapy is discontinued.

Antidepressants increased the risk of suicidal thinking and behavior in short-term studies in children and adolescents with depression and other psychiatric disorders. Anyone considering the use of fluoxetine or any other antidepressant in a child or adolescent must balance this risk of suicide with the clinical need. Patients who are started on therapy should be closely observed for clinical worsening, suicidal thoughts, or unusual changes in behavior.

Reference: FDA Prescribing Information


Last Editorial Review: 3/4/2008



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