Sildenafil Citrate vs Tadalafil: side-by-side comparison
Sildenafil Citrate and Tadalafil belong to the same class (PDE5 inhibitor). They share therapeutic approach but differ in mechanism nuances, half-life, side-effect profile and available formulations. This comparison summarises what is common and where they diverge.
| Property | Sildenafil Citrate | Tadalafil |
|---|---|---|
| Therapeutic class | PDE5 inhibitor | PDE5 inhibitor |
| CAS | 171599-83-0 | 171596-29-5 |
| ATC | G04BE03 | G04BE08 |
| Molecular weight | 666.7 g/mol | 389.4 g/mol |
| Brands with this active ingredient | 10 | 7 |
What they share
Both are in the PDE5 inhibitor class, giving them a common pharmacological architecture and many shared safety and management points. Choice within the class comes down to mechanism nuances, half-life, side-effect profile and individual response.
Key differences
Differences within the PDE5 inhibitor class are what matter in practice: half-life, route of administration, equivalent doses, specific interactions, predominant side-effect profile and accumulated clinical experience. This page frames them; the prescribing information gives quantitative detail.
Mechanisms compared
Sildenafil Citrate: Le citrate de sildénafil inhibe sélectivement la phosphodiestérase de type 5 (PDE5), l'enzyme qui dégrade le guanosine monophosphate cyclique dans le corps caverneux. Tadalafil: Le tadalafil inhibe sélectivement la PDE5, l'enzyme chargée de dégrader le guanosine monophosphate cyclique dans le corps caverneux et dans d'autres muscles lisses vasculaires.
Indications compared
Sildenafil Citrate: Le citrate de sildénafil est autorisé chez l'homme adulte dans le traitement de la dysfonction érectile. Tadalafil: Le tadalafil dispose de trois indications autorisées : la dysfonction érectile chez l'homme adulte, les troubles urinaires du bas appareil liés à l'hypertrophie bénigne de la prostate, et l'hypertension artérielle pulmon…
Safety profile
Sildenafil Citrate: Les effets indésirables fréquents rapportés dans les essais cliniques comprennent céphalées, bouffées vasomotrices du visage, congestion nasale, dyspepsie et troubles visuels transitoires. Tadalafil: Les effets indésirables fréquents observés dans les essais cliniques comprennent céphalées, dyspepsie, douleurs dorsales, myalgies, congestion nasale et bouffées vasomotrices du visage.
Questions fréquentes
Is Sildenafil Citrate better than Tadalafil? ▾
Neither is universally better. Sildenafil Citrate and Tadalafil share the PDE5 inhibitor class but differ in half-life, mechanism nuances and side-effect profile. The choice depends on the patient and the prescriber.
Can Sildenafil Citrate and Tadalafil be combined? ▾
Combining two ingredients from the same PDE5 inhibitor class is uncommon and, in most cases, adds no benefit over one at an appropriate dose. The decision is always the prescriber's.
Do they have the same side-effect profile? ▾
Partly yes — they share many PDE5 inhibitor class effects, with nuances by mechanism and dose. The prescribing information lists differences.
Products with Sildenafil Citrate
Products with Tadalafil
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.