Elavil vs Prozac: side-by-side comparison
Elavil (Amitriptyline) and Prozac (Fluoxetine) both belong to the Anti-Depressants class. They share clinical context but use different active ingredients. The choice between them depends on mechanism nuances, side-effect profile and individual response.
| Property | Elavil | Prozac |
|---|---|---|
| Active ingredient | Amitriptyline | Fluoxetine |
| Manufacturer | Various generics | Eli Lilly |
| Class | Anti-Depressants | Anti-Depressants |
| Strengths | 10mg, 25mg, 50mg, 75mg, 100mg | 10mg, 20mg, 40mg |
| Forms | tablet | capsule, tablet |
What's the same
Elavil and Prozac both belong to the Anti-Depressants class and are used for partially overlapping indications. The active ingredients — Amitriptyline vs Fluoxetine — share the same therapeutic approach, so many safety and management points carry across both.
Key differences
Meaningful differences are in active ingredient (Amitriptyline vs Fluoxetine), strengths (10mg, 25mg, 50mg, 75mg, 100mg vs 10mg, 20mg, 40mg), forms (tablet vs capsule, tablet), and the mechanism, half-life and side-effect nuances that distinguish members of the class.
Mechanism and action
Elavil: Amitriptyline inhibits reuptake of serotonin and noradrenaline at central synapses. Prozac: Fluoxetine selectively inhibits the serotonin reuptake transporter, increasing synaptic serotonin availability.
When Elavil is preferred
Amitriptyline is approved for major depressive disorder, but contemporary use is dominated by low-dose off-label indications: neuropathic pain, fibromyalgia, chronic tension headache, migraine prevention, irritable bowel syndrome, nocturnal enuresis, and insomnia.
When Prozac is preferred
Prozac is approved for major depressive disorder (adult and paediatric from age 8), obsessive-compulsive disorder (paediatric from age 7), bulimia nervosa, panic disorder and premenstrual dysphoric disorder.
Frequently asked questions
Is Elavil or Prozac better? ▾
There is no single answer. Elavil and Prozac both belong to the Anti-Depressants class but differ in mechanism nuances, half-life and side-effect profile. Preference depends on the patient, the prescriber and prior response to other therapies.
Can I switch from Elavil to Prozac? ▾
Switching within the Anti-Depressants class is done under supervision, typically using equivalent doses and a follow-up period to confirm response and tolerance. It is not a self-directed decision.
Do Elavil and Prozac have the same side effects? ▾
They share many of the Anti-Depressants class side effects, with differences from mechanism and dose. Each medication's prescribing information lists specifics.
More Elavil comparisons
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.