Sildenafil Citrate vs Dutasteride: side-by-side comparison
Sildenafil Citrate (PDE5 inhibitor) and Dutasteride (Dual 5α-reductase inhibitor (type 1 and type 2)) 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 | Sildenafil Citrate | Dutasteride |
|---|---|---|
| Therapeutic class | PDE5 inhibitor | Dual 5α-reductase inhibitor (type 1 and type 2) |
| CAS | 171599-83-0 | 164656-23-9 |
| ATC | G04BE03 | G04CB02 |
| Molecular weight | 666.7 g/mol | 528.53 g/mol |
| Brands with this active ingredient | 10 | 1 |
What they share
Sildenafil Citrate and Dutasteride 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
Sildenafil Citrate acts by a different mechanism than Dutasteride, 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
Sildenafil Citrate: Sildenafilcitrat hemmt selektiv die Phosphodiesterase Typ 5 (PDE5), ein Enzym, das zyklisches Guanosinmonophosphat im Corpus cavernosum abbaut. Dutasteride: Dutasterid hemmt irreversibel beide Isoenzyme der 5α-Reduktase, des Enzyms, das Testosteron zu Dihydrotestosteron (DHT) umwandelt.
Indications compared
Sildenafil Citrate: Sildenafilcitrat ist bei erwachsenen Männern zur Behandlung der erektilen Dysfunktion zugelassen. Dutasteride: Dutasterid ist zugelassen bei symptomatischer benigner Prostatahyperplasie, allein oder in Kombination mit Tamsulosin (Combodart/Jalyn) zur stärkeren Symptomlinderung.
Safety profile
Sildenafil Citrate: Häufige unerwünschte Wirkungen aus klinischen Studien umfassen Kopfschmerzen, Gesichtsrötung, Nasenschleimhautschwellung, Dyspepsie und vorübergehende Sehstörungen. Dutasteride: Häufige Nebenwirkungen sind sexuelle Funktionsstörungen (verminderte Libido, erektile Dysfunktion, Ejakulationsstörungen), Gynäkomastie und Brustspannen.
Häufig gestellte Fragen
Is Sildenafil Citrate better than Dutasteride? ▾
Sildenafil Citrate and Dutasteride are not "better or worse" — they treat different things. The sensible question is which fits your specific need.
Can Sildenafil Citrate and Dutasteride 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 Sildenafil Citrate
Products with Dutasteride
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