← Antidepressants

Fluoxetine

Also known as Prozac · SSRI

Withdrawal risk: Lower

What it's used for

  • Depression
  • OCD
  • Bulimia nervosa
  • Premenstrual dysphoric disorder

Read about: Depression, Persistent depressive disorder, Perinatal & postnatal depression, Seasonal affective disorder, Premenstrual dysphoric disorder, Health anxiety, Obsessive-compulsive disorder, Post-traumatic stress disorder, Bulimia nervosa

How it works: Blocks the serotonin transporter; its active metabolite lasts for weeks.

Common side effects

  • Nausea
  • Restlessness or anxiety early on
  • Insomnia
  • Sexual side effects

Tapering considerations

  • The long half-life gives a built-in 'self-taper', but withdrawal can still occur and appear late.
  • Liquid allows small steps.
Why smaller steps near the end →

For prescribers & facilitators

  • Sometimes used as a bridge when tapering shorter-acting SSRIs — specialist decision.
  • Strong CYP2D6 inhibitor; check interactions.

Sources