Fluoxetine is available in several dosage forms, including a capsule, tablet, liquid, and delayed-release capsule that you take by mouth. Prozac belongs to a group of drugs called selective serotonin reuptake inhibitors (SSRIs). This article describes the dosages of Prozac, its strengths, and how to take it. Medscape - Depression, obsessive-compulsive disorder, premenstrual dysphoric disorder-specific dosing for Prozac (fluoxetine), frequency-based adverse effects, comprehensive interactions. Doctors may start with low dosages of fluoxetine and gradually increase the dose. Those using the drug must be patient, as it may take 4 to 5 weeks before they see benefits. However, the dose is usually not more than 50 mg of fluoxetine and 12 mg of olanzapine per day. Children younger than 10 years of age—Use and dose must be determined by your doctor. Detailed Fluoxetine dosage information for adults and children. Includes dosages for Depression, Panic Disorder, Obsessive Compulsive Disorder and more; plus renal, liver and dialysis adjustments. The physician who elects to use PROZAC for extended periods should periodically re-evaluate the long-term usefulness of the drug for the individual patient [see Dosage and Administration (2.3)]. Learn the typical dosages of fluoxetine (Prozac) for depression, OCD, and panic disorder. Find details on available strengths (10mg, 20mg, 40mg), daily timing, and what to do if you miss a dose. The usual starting Prozac dosage in adults and children is 10 mg to 20 mg once daily in the morning. Your healthcare provider may raise your dose after a few weeks based on your response. Detailed dosage guidelines and administration information for Prozac Capsules (fluoxetine hydrochloride). Includes dose adjustments, warnings and precautions.