How does fluoxetine work?
Fluoxetine helps the brain maintain higher levels of serotonin, a neurotransmitter that affects mood, sleep, and overall mental well-being. This can help relieve symptoms of depression and anxiety over time.
What is fluoxetine used to treat?
Fluoxetine is prescribed for:
- Depression
- Obsessive-compulsive disorder (OCD)
- Panic disorder
- Bulimia nervosa
- Premenstrual dysphoric disorder (PMDD)
Who can take fluoxetine?
Fluoxetine is suitable for most adults and children over 8 years old (for OCD). It is often prescribed for people experiencing depression or anxiety-related conditions.
Who might not be able to take fluoxetine?
Fluoxetine may not be suitable if you:
- Are allergic to fluoxetine or similar medications
- Have bipolar disorder (without medical advice)
- Have a history of seizures or epilepsy
- Are taking other medications that affect serotonin (such as MAOIs)
Can I take fluoxetine if I’m pregnant or breastfeeding?
Fluoxetine is sometimes prescribed during pregnancy if the benefits outweigh the risks. If you are pregnant, trying for a baby, or breastfeeding, speak to your doctor before taking fluoxetine.
What if I miss a dose?
If you forget to take a dose, take it as soon as you remember. If it’s close to your next dose, skip the missed one—don’t take two doses at once.
How effective is fluoxetine?
Fluoxetine is an effective treatment for depression and anxiety, but it doesn’t work overnight. It may take 4 to 6 weeks before you start noticing the full benefits.
What should I do if I take too much fluoxetine?
Taking too much fluoxetine can cause serious side effects, including:
If you think you’ve taken too much, seek medical help immediately.
What dose of fluoxetine is usually taken?
Doses vary depending on the condition:
- Depression & anxiety disorders: 20mg once daily, which may increase up to 60mg if needed
- OCD in children: Starting dose of 10mg, increasing as needed
Your doctor will start you on a low dose and adjust it if necessary.
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What are the side effects of fluoxetine?
Like all medications, fluoxetine can cause side effects, but not everyone gets them. Common ones include:
- Nausea
- Dizziness
- Headache
- Trouble sleeping
- Sweating
- Feeling tired or restless
Some people may experience more serious side effects, including suicidal thoughts, especially in the early stages of treatment. If you feel unsafe, speak to a healthcare professional straight away.
How should I take fluoxetine?
Fluoxetine comes as a tablet or liquid and is usually taken once daily with or without food.
When should fluoxetine be taken?
Fluoxetine is usually taken in the morning or evening, depending on how it affects sleep.
What are the brand names for fluoxetine?
Fluoxetine is available under brand names such as Prozac in the UK.
Final thoughts
Fluoxetine can be a life-changing treatment for depression and anxiety, but it takes time to work. Stick with it, follow your doctor’s advice, and reach out for support if you need it. If you have any concerns about side effects or how it’s making you feel, speak to your doctor or pharmacist.
