Tadalafil vs Fluoxetine: side-by-side comparison
Tadalafil (PDE5 inhibitor) and Fluoxetine (Selective serotonin reuptake inhibitor (SSRI)) belong to different therapeutic classes and are rarely substitutes for each other. The comparison is useful when a single patient is weighing both options for adjacent or overlapping needs.
| Property | Tadalafil | Fluoxetine |
|---|---|---|
| Therapeutic class | PDE5 inhibitor | Selective serotonin reuptake inhibitor (SSRI) |
| CAS | 171596-29-5 | 54910-89-3 |
| ATC | G04BE08 | N06AB03 |
| Molecular weight | 389.4 g/mol | 309.33 g/mol |
| Brands with this active ingredient | 7 | 1 |
What they share
Tadalafil and Fluoxetine share the common regulatory framework for prescription active ingredients, bioequivalence standards for generics, and pharmacist oversight. Beyond that, points in common are limited.
Key differences
Tadalafil acts by a different mechanism than Fluoxetine, with indications that barely overlap. Comparing the two is useful when a clinician has mentioned both in the same context or the patient wants to understand why one was prescribed instead of the other.
Mechanisms compared
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. Fluoxetine: La fluoxétine inhibe sélectivement le transporteur de recapture de la sérotonine, augmentant la disponibilité synaptique de la sérotonine.
Indications compared
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… Fluoxetine: La fluoxétine est autorisée dans la dépression caractérisée (adulte et enfant à partir de 8 ans), le trouble obsessionnel compulsif, la boulimie nerveuse, le trouble panique et le trouble dysphorique prémenstruel.
Safety profile
Tadalafil: Les effets indésirables fréquents observés dans les essais cliniques comprennent céphalées, dyspepsie, douleurs dorsales, myalgies, congestion nasale et bouffées vasomotrices du visage. Fluoxetine: Les effets indésirables fréquents comprennent nausées, céphalées, troubles du sommeil, troubles de la fonction sexuelle et diminution de l'appétit.
Questions fréquentes
Is Tadalafil better than Fluoxetine? ▾
Tadalafil and Fluoxetine are not "better or worse" — they treat different things. The sensible question is which fits your specific need.
Can Tadalafil and Fluoxetine be combined? ▾
Whether they can be combined depends on the indications and the interaction profile of each. If both are in a single prescription, the prescriber has weighed it; in self-medication they should never be combined.
Do they have the same side-effect profile? ▾
No — they belong to different classes and have distinct side-effect profiles. Each has its own prescribing information.
Products with Tadalafil
Products with Fluoxetine
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.