Medically reviewed by Jessica Swirble, PharmD
Last updated on April 17, 2025
Drug Information | Side Effects | Use & Dosage | Request an Online Prescription
Fluoxetine is a medication used to treat depression, certain eating disorders, obsessive-compulsive disorder, and panic disorder. It belongs to a class of drugs known as selective serotonin reuptake inhibitors (SSRIs), which increase serotonin levels in the brain.
Fluoxetine is prescribed for mental health conditions like:
Fluoxetine belongs to a class of drugs called selective serotonin reuptake inhibitors. These drugs work by blocking the reuptake of serotonin, a neurotransmitter that plays a crucial role in stabilizing mood. By blocking the reuptake of serotonin, these drugs increase levels of serotonin in the brain.
Fluoxetine is available in various forms:
The dosage and length of treatment depend on the condition being treated, its severity, and how you tolerate the medication.
Follow your healthcare provider's instructions regarding dosage and schedule. Do not exceed the prescribed dose or duration of treatment without consulting your provider.
The effectiveness of fluoxetine and the time it takes to notice improvement can vary among individuals. In the treatment of depression, it may take several weeks to feel the full benefit of the medication.
Continue taking fluoxetine as prescribed even if you start feeling better. Do not abruptly stop the medication, as it may lead to a return of symptoms or withdrawal-like effects.
While fluoxetine is primarily used for treating depression, obsessive-compulsive disorder, bulimia nervosa, and panic disorder, healthcare providers may sometimes prescribe it off-label for other conditions related to mood or anxiety.
Discuss any alternative uses of fluoxetine with your healthcare provider.
The use of fluoxetine can lead to various side effects in some individuals.
Common mild side effects of fluoxetine use include:
More severe side effects of fluoxetine use can include:
If you experience any severe or concerning side effects while taking fluoxetine, contact your healthcare provider right away.
Tell your healthcare provider about any existing medical conditions, allergies, or other medications you are taking before starting treatment with pantoprazole. This includes prescription drugs, over-the-counter medications, and dietary supplements, as they may interact with fluoxetine.
Tell your provider if you are taking these medications or supplements:
You should also mention medical conditions such as:
If you are pregnant, planning to become pregnant, or breastfeeding, consult your healthcare provider before using fluoxetine to assess potential risks and benefits.
Take fluoxetine exactly as prescribed by your healthcare provider. Do not exceed the recommended dose or duration of treatment.
Fluoxetine can impair your thinking or behavior. It can also cause drowsiness (especially when taken with alcohol). Do not operate heavy machinery or vehicles until you know how fluoxetine affects you.
Take fluoxetine around the same time every day (preferably in the morning). Fluoxetine can be taken with or without food.
In case of a fluoxetine overdose, seek medical attention immediately. Symptoms of overdose may include severe dizziness, confusion, changes in heartbeat, fever, fainting, unconsciousness, and seizures. If you suspect an overdose, contact the poison control helpline at 1-800-222-1222 or call emergency services.
Fluoxetine is available in the following forms:
The typical starting dose of fluoxetine varies depending on the condition being treated, the severity of symptoms, and individual patient factors. It is crucial to follow your healthcare provider's instructions regarding dosage and administration.
For depression:
For obsessive-compulsive disorder:
For bulimia nervosa:
For panic disorder:
The dosage may be adjusted based on the response and tolerance to the medication. Your healthcare provider will determine the most appropriate dose based on your medical history, current medications, and response to the medication.
Fluoxetine should be taken exactly as prescribed by your healthcare provider. Do not exceed the recommended dose or duration of treatment without consulting your provider.
If you have any questions about your dosage or need adjustments, contact your healthcare provider for guidance. If you want to talk to a provider right away, consider scheduling an online doctor appointment through a telehealth platform like Sesame.
If you miss a dose of fluoxetine, take it as soon as you remember unless it is close to the time for your next scheduled dose. In that case, skip the missed dose and continue with your regular dosing schedule. Do not double the dose to make up for a missed one.
Take fluoxetine around the same time every day to ensure effectiveness.
Continue taking lamotrigine as prescribed by your healthcare provider, even if you start feeling better. Do not stop the medication abruptly without consulting your provider, as it may lead to a return of symptoms.
If you have any concerns or questions about your medication, discuss them with your healthcare provider for medical advice and recommendations.
Store fluoxetine according to the instructions provided by your healthcare provider or pharmacist. Keep it at room temperature, away from light and moisture. Ensure the container is tightly closed and out of reach of children.
Do not use expired medication or medications that appear damaged or discolored. If you have any questions about storage, consult your healthcare provider or pharmacist for guidance.