Cialis vs Propecia: side-by-side comparison
Cialis (Dysfonction érectile) and Propecia (Alopécie androgénétique) belong to different therapeutic classes and are rarely interchangeable. This page compares the medications' purposes, mechanisms and the situations where each is used.
| Property | Cialis | Propecia |
|---|---|---|
| Active ingredient | Tadalafil | Finasteride |
| Manufacturer | Eli Lilly | Merck |
| Class | Dysfonction érectile | Alopécie androgénétique |
| Strengths | 2.5mg, 5mg, 10mg, 20mg | 1mg |
| Forms | tablet | tablet |
What's the same
Cialis and Propecia 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
Cialis belongs to Dysfonction érectile while Propecia belongs to Alopécie androgénétique. 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
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. 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…
When Cialis is preferred
Cialis est indiqué chez l'homme adulte dans le traitement de la dysfonction érectile.
When Propecia is preferred
Propecia est autorisé dans le traitement de l'alopécie androgénétique masculine chez l'homme de 18 à 41 ans.
Questions fréquentes
Is Cialis or Propecia better? ▾
Cialis and Propecia 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 Cialis to Propecia? ▾
Switching between Cialis and Propecia 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 Cialis and Propecia 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 Cialis comparisons
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