Ativan vs Prozac: side-by-side comparison
Ativan (Anxiolytiques) and Prozac (Antidépresseurs) belong to different therapeutic classes and are rarely interchangeable. This page compares the medications' purposes, mechanisms and the situations where each is used.
| Property | Ativan | Prozac |
|---|---|---|
| Active ingredient | Lorazepam | Fluoxetine |
| Manufacturer | Pfizer | Eli Lilly |
| Class | Anxiolytiques | Antidépresseurs |
| Strengths | 0.5mg, 1mg, 2mg | 10mg, 20mg, 40mg |
| Forms | tablet, oral concentrate, injection | capsule, tablet |
What's the same
Ativan and Prozac are used in very different patients, and the points in common are limited. The main shared element is that both meet regulatory standards for efficacy and safety and benefit from pharmacist oversight.
Key differences
Ativan belongs to Anxiolytiques while Prozac belongs to Antidépresseurs. Indications, mechanisms and target populations differ. The comparison is most useful when a clinician has mentioned both medications and the patient wants to understand where each fits.
Mechanism and action
Ativan: Le lorazépam se lie au site benzodiazépine du récepteur GABA-A et renforce de façon allostérique la conductance chlorure inhibitrice. Prozac: La fluoxétine inhibe sélectivement le transporteur de recapture de la sérotonine, augmentant sa disponibilité synaptique.
When Ativan is preferred
Ativan est autorisé chez l'adulte dans la prise en charge de courte durée des troubles anxieux et de l'insomnie liée à l'anxiété.
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.
Questions fréquentes
Is Ativan or Prozac better? ▾
Ativan and Prozac are not interchangeable — they treat different conditions. Asking which is "better" is meaningful only when a clinician has weighed both for the same specific clinical scenario.
Can I switch from Ativan to Prozac? ▾
Switching between Ativan and Prozac is rarely an appropriate decision since they belong to different classes and treat different conditions. The real question is usually whether the diagnosis calls for one medication or the other — which the prescriber resolves.
Do Ativan and Prozac have the same side effects? ▾
No — they belong to different classes and have distinct side-effect profiles. Each medication has its own prescribing information.
More Ativan comparisons
Les informations publiées sur ce site sont fournies à titre documentaire et pédagogique. Elles ne remplacent pas l'avis d'un professionnel de santé qualifié.