See also Warning section.
Nausea, drowsiness,ædizziness,æanxiety,ætrouble sleeping, loss of appetite, tiredness,æsweating, or yawning may occur. If any of these effects persist or worsen, tell your doctor promptly.
Remember that your doctor has prescribed thisæmedicationæbecause he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if any of these unlikely but serious side effects occur: unusual or severe mental/mood changes (such as agitation, unusual high energy/excitement, thoughts ofæsuicide), easy bruising/bleeding, muscleæweakness/spasm, shakiness (tremor), decreased interest inæsex, changes in sexual ability, unusualæweight loss.
Get medical help right away if you have any very serious side effects, including: bloody/black/tarry stools, vomit that looks like coffee grounds, fast/irregular heartbeat,æfainting,æseizures, signs ofækidneyæproblems (such as change in the amount of urine),æeye pain/swelling/redness, widened pupils,ævisionæchanges (such as seeing rainbows around lights at night,æblurred vision).
If you haveædiabetes,æfluoxetineæmay affect youræblood sugar levels. Monitor youræblood sugarregularly and share the results with your doctor. Your doctor may need to adjust your medication, diet, andæexerciseæwhen you start or stop fluoxetine.
This medication may increase serotonin and rarely cause a very serious condition calledæserotonin syndrome/toxicity. The risk increases if you are also taking other drugs that increase serotonin, so tell your doctor oræpharmacistæof all the drugs you take (seeæDrug Interactionssection). Get medical help right away if you develop some of the following symptoms: fast heartbeat,æhallucinations, loss of coordination, severe dizziness, severeænausea/vomiting/diarrhea,ætwitchingæmuscles,æunexplained fever, unusual agitation/restlessness.
Rarely, males may have a painful or prolonged erection lasting 4 or more hours. If this occurs, stop using this drug and get medical help right away, or permanent problems could occur.
A very seriousæallergic reactionæto this drug is rare. However, get medical help right away if you notice any symptoms of a seriousæallergic reaction, including:ærash,æitching/swelling (especially of the face/tongue/throat), severe dizziness,ætrouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.