Plan B vs Viagra Professional: side-by-side comparison
Plan B (Hormones et contraception) and Viagra Professional (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 Professional |
|---|---|---|
| Active ingredient | Levonorgestrel | Sildenafil Citrate |
| Manufacturer | Foundation Consumer Healthcare | Pfizer |
| Class | Hormones et contraception | Dysfonction érectile |
| Strengths | 1.5mg | 100mg |
| Forms | tablet | sublingual tablet |
What's the same
Plan B and Viagra Professional 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 Professional 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 Professional: Le citrate de sildénafil inhibe la PDE5, ce qui permet au GMP cyclique produit lors de l'excitation sexuelle de s'accumuler dans le tissu pénien, relâchant le muscle lisse des artères péniennes et augmentant l'afflux san…
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 Professional is preferred
Viagra Professional s'adresse à l'homme adulte présentant une dysfonction érectile.
Questions fréquentes
Is Plan B or Viagra Professional better? ▾
Plan B and Viagra Professional 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 Professional? ▾
Switching between Plan B and Viagra Professional 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 Professional 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.