What condition is Fluoxetine primarily used to treat?

Fluoxetine is primarily used to treat obsessive-compulsive disorder (OCD) because it is a selective serotonin reuptake inhibitor (SSRI) that effectively increases serotonin levels in the brain. This action helps alleviate symptoms associated with OCD, such as intrusive thoughts and compulsive behaviors, by enhancing the overall mood and reducing anxiety. Clinical studies have demonstrated fluoxetine's efficacy in managing OCD, making it a first-line treatment option for this disorder.

While fluoxetine may also have applications in other conditions, such as generalized anxiety disorder, it is specifically indicated and best studied for OCD. Chronic pain and anorexia nervosa are not primary indications for fluoxetine, although management of anorexia often requires a more comprehensive treatment approach beyond medication alone.