Fluoxetine
Uses of Fluoxetine
Fluoxetine's main use is to manage major depressive disorder. It belongs to a group of medicines known as selective serotonin reuptake inhibitors (SSRIs).
This medicine is also used to manage obsessive-compulsive disorder, panic disorder, bulimia nervosa, and premenstrual dysphoric disorder.
Side effects of Fluoxetine
Feeling sick
Headaches
Feeling sleepy or having trouble sleeping
Feeling nervous or restless
Changes in weight
How Fluoxetine works
Fluoxetine belongs to a group of medicines known as selective serotonin reuptake inhibitors (SSRIs).
It stops the movement of a chemical called serotonin in your brain. Serotonin is a substance that helps send messages from one part of the brain to another. It has a role in many brain functions, which include regulating mood. When you are feeling low or depressed, these serotonin levels can be lower than normal. It helps bring these levels back up, which can improve your mood and relieve symptoms of depression and anxiety.
Certified content
Written By
BDS, MDS
Reviewed By
BMS, FMC, MD Resident
Expert Advice
Dosage Forms Available
Fluoxetine comes in three forms: as tablets, capsules, and a liquid solution, which can be taken orally.
Age and Dose Restrictions
This medicine is generally prescribed for adults and for children over the age of eight years old. The dose can vary depending on your individual needs and the condition being managed.
Contraindications
This medication is contraindicated if you are allergic to it or any of its ingredients.
It is also contraindicated if you are taking another type of medicine called a monoamine oxidase inhibitor (MAOI) or have taken one in the past two weeks. These include medicines such as isocarboxazid, phenelzine, or tranylcypromine.
Other Medications to Avoid
This medicine may react with other antidepressants (e.g., citalopram, phenelzine), painkillers (e.g., aspirin, ibuprofen), and medicines used to treat mental health conditions (e.g., lithium, risperidone, clozapine).
Before starting any prescription or over-the-counter medications, it's crucial to consult a doctor.
Overdose and Missed Dose
Taking more Fluoxetine than prescribed can cause symptoms such as feeling sick, dizzy, or restless. If you have taken more than your prescribed dose, contact your doctor right away.
If you forget to take a dose of this medicine, take it as soon as you remember. But if it is nearly time for your next dose, skip the missed dose and continue with your regular dosing schedule.
Management of Side Effects
Try to take this medicine at the same time each day to help reduce any side effects.
If you have an upset stomach after taking this medicine, try taking it with food.
Use in Driving and Operating Machinery
This medicine may cause drowsiness or dizziness. If this happens to you, don't drive or operate machinery.
Use in Pregnancy and Lactation
If you are pregnant, planning to become pregnant, or are breastfeeding, consult your doctor before taking this medicine.
Caution in Other Conditions
This medicine should be used with caution if you have liver disease or diabetes.
If you have a history of seizures or are at risk of low sodium levels in your blood (hyponatremia), talk to your doctor before starting this medicine.
Special Dietary and Lifestyle Recommendations
Avoid alcohol as it can increase the side effects of this medicine.
Regular exercise can help boost your mood and improve your sleep and appetite.
Try to eat a balanced diet to help improve your overall health.
Frequently asked questions
Can Fluoxetine have an effect on sleep?
Yes, this medicine can cause sleep problems, including insomnia or feeling tired. If you have any sleep problems while taking this medication, talk to your doctor.
Can Fluoxetine cause weight changes?
Yes, this medication can cause changes in weight. Some people may lose weight while others may gain weight. If you notice significant changes in weight while taking this medicine, consult your doctor.
How long does Fluoxetine take to work?
This medicine usually takes a few weeks to start working. It's important to continue taking the medication even if you don't feel better right away.
Can Fluoxetine cause sexual problems?
Yes, this medicine can cause sexual problems. These can include decreased sex drive or difficulty reaching orgasm. If this is a problem for you, speak with your doctor.
Can I stop taking Fluoxetine if I feel better?
No, you should not stop taking Fluoxetine without talking to your doctor first, even if you feel better. Stopping the medication suddenly can lead to withdrawal symptoms.
Can Fluoxetine be taken with other medicines?
This medicine can interact with many other medications, so it's important to tell your doctor about any other medicines you're taking before starting the medicine.
What is an adverse reaction to Fluoxetine?
The adverse reactions to Fluoxetine include fever, shivering, irregular heartbeat, hallucinations, dizziness or fainting.
Fluoxetine in other salts
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