## **Core Concept**
Bulimia nervosa is a psychiatric eating disorder characterized by episodes of binge eating followed by compensatory behaviors such as self-induced vomiting, laxatives, or excessive exercise. Pharmacological treatment often focuses on addressing the core symptoms of binge eating and purging, as well as managing related psychological issues such as depression and anxiety.

## **Why the Correct Answer is Right**
The correct answer, **C. Fluoxetine**, is a selective serotonin reuptake inhibitor (SSRI) that has been specifically approved by the FDA for the treatment of bulimia nervosa. SSRIs work by increasing the levels of serotonin in the brain, which helps to regulate mood, appetite, and other functions. Fluoxetine has been shown to reduce the frequency of binge eating and purging episodes in patients with bulimia nervosa. Its mechanism of action involves enhancing serotonergic transmission, which can lead to decreased appetite and reduced symptoms of bulimia.

## **Why Each Wrong Option is Incorrect**
- **Option A:** While some typical antipsychotics may have off-label uses for various psychiatric conditions, they are not the first-line treatment for bulimia nervosa due to their side effect profiles and the availability of more targeted therapies.
- **Option B:** Although mood stabilizers can be used in the treatment of certain eating disorders, they are not the primary choice for bulimia nervosa.
- **Option D:** Tricyclic antidepressants (TCAs) have been used historically for various conditions, including depression and certain eating disorders. However, they are not the preferred treatment for bulimia nervosa due to their side effect profile compared to SSRIs like fluoxetine.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that fluoxetine is specifically indicated for the treatment of bulimia nervosa, making it a high-yield fact for exams. Additionally, it's worth noting that while pharmacotherapy is important, it is often used in conjunction with psychotherapy for the best outcomes in patients with bulimia nervosa.

## **Correct Answer:** . Fluoxetine