Propecia vs Cialis: side-by-side comparison
Propecia (Alopécie androgénétique) and Cialis (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 | Propecia | Cialis |
|---|---|---|
| Active ingredient | Finasteride | Tadalafil |
| Manufacturer | Merck | Eli Lilly |
| Class | Alopécie androgénétique | Dysfonction érectile |
| Strengths | 1mg | 2.5mg, 5mg, 10mg, 20mg |
| Forms | tablet | tablet |
What's the same
Propecia and Cialis 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
Propecia belongs to Alopécie androgénétique while Cialis 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
Propecia: La DHT, produite à partir de la testostérone par la 5-alpha-réductase, entraîne la miniaturisation des follicules pileux du cuir chevelu chez les hommes génétiquement prédisposés, raccourcissant progressivement les phase… Cialis: 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 Propecia is preferred
Propecia est autorisé dans le traitement de l'alopécie androgénétique masculine chez l'homme de 18 à 41 ans.
When Cialis is preferred
Cialis est indiqué chez l'homme adulte dans le traitement de la dysfonction érectile.
Questions fréquentes
Is Propecia or Cialis better? ▾
Propecia and Cialis 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 Propecia to Cialis? ▾
Switching between Propecia and Cialis 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 Propecia and Cialis 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 Propecia 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.