Famotidine vs Vardenafil: side-by-side comparison
Famotidine (H2-receptor antagonist) and Vardenafil (PDE5 inhibitor) 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 | Famotidine | Vardenafil |
|---|---|---|
| Therapeutic class | H2-receptor antagonist | PDE5 inhibitor |
| CAS | 76824-35-6 | 224785-91-5 |
| ATC | A02BA03 | G04BE09 |
| Molecular weight | 337.45 g/mol | 488.6 g/mol |
| Brands with this active ingredient | 1 | 2 |
What they share
Famotidine and Vardenafil 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
Famotidine acts by a different mechanism than Vardenafil, 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
Famotidine: Famotidin blockiert reversibel und kompetitiv Histamin-H2-Rezeptoren an den Belegzellen des Magens und reduziert sowohl die basale als auch die stimulierte Magensäuresekretion. Vardenafil: Vardenafil hemmt selektiv die PDE5, das Enzym, das zyklisches Guanosinmonophosphat im Corpus cavernosum abbaut.
Indications compared
Famotidine: Famotidin ist bei Erwachsenen und Kindern zur Kurzzeitbehandlung des aktiven Duodenal- und Magenulkus, zur Erhaltungstherapie des Duodenalulkus, bei gastroösophagealer Refluxkrankheit, beim Zollinger-Ellison-Syndrom und… Vardenafil: Vardenafil ist bei erwachsenen Männern zur Behandlung der erektilen Dysfunktion zugelassen.
Safety profile
Famotidine: Famotidin wird im Allgemeinen gut vertragen. Vardenafil: Häufige Nebenwirkungen in klinischen Studien sind Kopfschmerzen, Gesichtsrötung, verstopfte Nase, Dyspepsie und Schwindel.
Häufig gestellte Fragen
Is Famotidine better than Vardenafil? ▾
Famotidine and Vardenafil are not "better or worse" — they treat different things. The sensible question is which fits your specific need.
Can Famotidine and Vardenafil 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 Famotidine
Products with Vardenafil
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