Prozac vs Elavil: side-by-side comparison
Prozac (Fluoxetine) and Elavil (Amitriptyline) both belong to the Antidépresseurs 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 | Prozac | Elavil |
|---|---|---|
| Active ingredient | Fluoxetine | Amitriptyline |
| Manufacturer | Eli Lilly | Various generics |
| Class | Antidépresseurs | Antidépresseurs |
| Strengths | 10mg, 20mg, 40mg | 10mg, 25mg, 50mg, 75mg, 100mg |
| Forms | capsule, tablet | tablet |
What's the same
Prozac and Elavil both belong to the Antidépresseurs class and are used for partially overlapping indications. The active ingredients — Fluoxetine vs Amitriptyline — share the same therapeutic approach, so many safety and management points carry across both.
Key differences
Meaningful differences are in active ingredient (Fluoxetine vs Amitriptyline), strengths (10mg, 20mg, 40mg vs 10mg, 25mg, 50mg, 75mg, 100mg), forms (capsule, tablet vs tablet), and the mechanism, half-life and side-effect nuances that distinguish members of the class.
Mechanism and action
Prozac: La fluoxétine inhibe sélectivement le transporteur de recapture de la sérotonine, augmentant sa disponibilité synaptique. Elavil: L'amitriptyline inhibe la recapture de la sérotonine et de la noradrénaline au niveau des synapses centrales.
When Prozac is preferred
Prozac est autorisé dans la dépression caractérisée (adulte et enfant à partir de 8 ans), le trouble obsessionnel compulsif (enfant à partir de 7 ans), la boulimie nerveuse, le trouble panique et le trouble dysphorique prémenstruel.
When Elavil is preferred
L'amitriptyline est autorisée dans la dépression caractérisée, mais son usage contemporain est dominé par les indications hors AMM à faible dose : douleurs neuropathiques, fibromyalgie, céphalées de tension chroniques, prévention de la migraine, syndrome de l'intestin irritable…
Questions fréquentes
Is Prozac or Elavil better? ▾
There is no single answer. Prozac and Elavil both belong to the Antidépresseurs 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 Prozac to Elavil? ▾
Switching within the Antidépresseurs 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 Prozac and Elavil have the same side effects? ▾
They share many of the Antidépresseurs class side effects, with differences from mechanism and dose. Each medication's prescribing information lists specifics.
More Prozac comparisons
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