Nausea (22% vs 9% for placebo), insomnia (19% vs 10% for placebo), somnolence (12% vs 5% for placebo), anorexia (10% vs 3% for placebo), anxiety (12% vs 6% for placebo), nervousness (13% vs 8% for placebo), asthenia (11% vs 6% for placebo) and tremor (9% vs 2% for placebo)are the common adverse effects caused with Prozac and greatly differing from placebo therapy.

7% of patients taking Prozac in clinical trials reported about rash or urticaria, sometimes serious. Discontinuation of the Prozac therapy leaded to that side effect in 32% of those patients. There are some reports about several cases of complications developed in patients with rash. Vasculitis and lupus-like syndrome were observed in those cases. Those systemic events gave occasion to death.

Akathisia is a common side effect of Prozac . It is often accompanied by purposeless movements of the feet and legs, constant pacing, and marked anxiety. Akathisia usually appears after the beginning of the Prozac therapy or increase of the dose. Reducing of Prozac dose, discontinuation of drug or treatment with propranolol can remove or relieve akathisia symptoms. There are proves that akathisia and suicidal attempts are relative. It was reported that there were patients who had been feeling better after the withdrawal of Prozac , but relapsed severe akathisia symptoms after resumption of Prozac therapy. The development of the akathisia forced those patients to wish to make quietus and that it had brought back about their prior suicide attempts. Physician should describe symptoms of akathisia to patients and staff because of coupling of akathisia with suicide and the distress. More rarely, Prozac can cause side effects related with movement disorders such as acute dystonia and tardive dyskinesia.

Increase of rate of poor adaptation of newborns can be resulted with taking Prozac during pregnancy. Mothers having Prozac therapy shouldn’t breastfeed because Prozac was found in milk. Prozac is classified by the American Association of Pediatrics as a drug for which the effect on the breastfeeding baby is still unknown but may be of great importance.