Active Ingredient

Paroxetine

Paroxetine is a medication that belongs to a group of drugs known as selective serotonin reuptake inhibitors (SSRIs). It is commonly used to help manage mood disorders.

This medication can be beneficial for individuals experiencing symptoms related to depression and anxiety. It works by influencing the balance of certain natural chemicals in the brain.

Written By Douglas C. Goldberg, MD

Reviewed By Philip Schein, MD

Last Updated 28 Nov 2025

Available Paroxetine Brands

Pexep

Strengths 10mg, 20mg

Paroxetine

Strengths 20mg

Paxil CR

Strengths 12.5 mg, 25 mg, 37.5 mg

Paxil

Strengths 10 mg, 20mg, 30mg, 40mg

Paroxetine Uses

Paroxetine is typically used to treat several mental health conditions. Here are some common uses:

Major depressive disorder
Generalized anxiety disorder
Obsessive-compulsive disorder
Panic disorder
Post-traumatic stress disorder

How Paroxetine Works

Paroxetine works by increasing the levels of serotonin, a natural substance in the brain that helps maintain mental balance.

As a selective serotonin reuptake inhibitor (SSRI), it prevents the reabsorption of serotonin, making more of it available to improve mood and reduce anxiety.

This action helps alleviate symptoms of depression and anxiety, providing relief to those affected by these conditions.

Common side effects of Paroxetine

Not everyone experiences side effects with Paroxetine, and many of them are mild and temporary. Common side effects include:

Nausea
Dizziness
Dry mouth
Sweating
Fatigue
Insomnia
Decreased appetite
Sexual dysfunction

If you experience serious or persistent side effects, it is important to contact your doctor.

Avoid consuming alcohol while taking Paroxetine as it can increase drowsiness.
Inform your doctor of any other medications you are taking to prevent interactions.
Do not stop taking Paroxetine abruptly without consulting your healthcare provider.
Monitor for any unusual changes in mood or behavior and report them to your doctor.
Avoid operating heavy machinery if you feel drowsy or dizzy.

Always consult your doctor for personalized medical advice.

Frequently Asked Questions

How long does it take for Paroxetine to work?

Paroxetine may take a few weeks to show its full effects. It’s important to continue taking it as prescribed and discuss any concerns with your doctor.

Can Paroxetine cause weight changes?

Some people may experience changes in weight while taking Paroxetine. If this is a concern, discuss it with your healthcare provider.

Is it safe to use Paroxetine during pregnancy?

If you are pregnant or planning to become pregnant, talk to your doctor about the risks and benefits of using Paroxetine.

Can I take Paroxetine with other medications?

Paroxetine can interact with other medications. It’s important to inform your doctor about all the medications you are currently taking.

What should I do if I miss a dose of Paroxetine?

If you miss a dose, take it as soon as you remember unless it’s almost time for your next dose. Do not double up on doses to make up for the missed one.