Patient information for Fluoxetine 20mg Capsules Including dosage instructions and possible side effects. Sexual dysfunction, including loss of libido, anorgasmia, lack of vaginal lubrication, and erectile dysfunction, are some of the most commonly encountered adverse effects of treatment with fluoxetine and other SSRIs. Fluoxetine is also sometimes used to treat alcoholism, attention-deficit disorder, borderline personality disorder, sleep disorders, headaches, mental illness, posttraumatic stress disorder, Tourette's syndrome, obesity, sexual problems, and phobias. You can drink some alcohol while taking fluoxetine. You can continue to drink some alcohol while taking fluoxetine, but it is best to keep it in moderation. Progress in Neuro-Psychopharmacology & Biological Psychiatry 26 (2002) 363 – 367 Tolerability of fluoxetine in posttraumatic stress disorder Stewart D. Barnett*, Haresh M. Tharwani, Michael A. Hertzberg, Suzanne M. Sutherland, Kathryn M. Connor, Jonathan R.T. Davidson Department of. Medscape - Depression, obsessive-compulsive disorder, premenstrual dysphoric disorder-specific dosing for Prozac, Sarafem (fluoxetine), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information. DESCRIPTION. PROZAC ® (fluoxetine capsules, USP) is a selective serotonin reuptake inhibitor for oral administration. It is also marketed for the treatment of premenstrual dysphoric disorder (Sarafem ®, fluoxetine hydrochloride). 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). Sexual complications are commonly reported by both men and women as a consequence of fluoxetine use. Up to 34 percent of individuals using fluoxetine may experience sex-related side effects, explains Drugs.com. Fluoxetine official prescribing information for healthcare professionals. Includes: indications, dosage, adverse reactions, pharmacology and more.