Plan B vs Viagra: side-by-side comparison
Plan B (Hormones et contraception) and Viagra (Dysfonction érectile) belong to different therapeutic classes and are rarely interchangeable. This page compares the medications' purposes, mechanisms and the situations where each is used.
| Property | Plan B | Viagra |
|---|---|---|
| Active ingredient | Levonorgestrel | Sildenafil Citrate |
| Manufacturer | Foundation Consumer Healthcare | Pfizer |
| Class | Hormones et contraception | Dysfonction érectile |
| Strengths | 1.5mg | 25mg, 50mg, 100mg |
| Forms | tablet | tablet |
What's the same
Plan B and Viagra 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
Plan B belongs to Hormones et contraception while Viagra belongs to Dysfonction érectile. 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
Plan B: Le mécanisme principal de Plan B est le retard ou le blocage de l'ovulation lorsqu'il est pris avant le pic de LH. Viagra: Lors de la stimulation sexuelle, du monoxyde d'azote est libéré dans le corps caverneux et active une enzyme qui produit du GMP cyclique.
When Plan B is preferred
Plan B est indiqué en contraception d'urgence après un rapport non protégé ou un échec de contraception avéré ou suspecté, chez la femme en âge de procréer.
When Viagra is preferred
Le médicament est indiqué chez l'homme adulte dans le traitement de la dysfonction érectile, définie comme l'incapacité à obtenir ou à maintenir une érection suffisante pour l'activité sexuelle.
Questions fréquentes
Is Plan B or Viagra better? ▾
Plan B and Viagra 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 Plan B to Viagra? ▾
Switching between Plan B and Viagra 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 Plan B and Viagra 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 Plan B 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.