Sildenafil Citrate vs Amlodipine: side-by-side comparison
Sildenafil Citrate (PDE5 inhibitor) and Amlodipine (Dihydropyridine calcium-channel blocker) 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 | Amlodipine |
|---|---|---|
| Therapeutic class | PDE5 inhibitor | Dihydropyridine calcium-channel blocker |
| CAS | 171599-83-0 | 88150-42-9 |
| ATC | G04BE03 | C08CA01 |
| Molecular weight | 666.7 g/mol | 408.88 g/mol |
| Brands with this active ingredient | 10 | 1 |
What they share
Sildenafil Citrate and Amlodipine 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 Amlodipine, 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. Amlodipine: Amlodipin blockiert selektiv L-Typ-Calciumkanäle in der glatten Gefäßmuskulatur, vermindert den transmembranen Calciumeinstrom und führt zu einer peripheren arteriellen Vasodilatation.
Indications compared
Sildenafil Citrate: Sildenafilcitrat ist bei erwachsenen Männern zur Behandlung der erektilen Dysfunktion zugelassen. Amlodipine: Amlodipin ist bei Erwachsenen zur Behandlung der essentiellen arteriellen Hypertonie und der chronisch stabilen Angina pectoris sowie der vasospastischen (Prinzmetal-)Angina zugelassen.
Safety profile
Sildenafil Citrate: Häufige unerwünschte Wirkungen aus klinischen Studien umfassen Kopfschmerzen, Gesichtsrötung, Nasenschleimhautschwellung, Dyspepsie und vorübergehende Sehstörungen. Amlodipine: Häufige Nebenwirkungen sind periphere Ödeme (typischerweise an den Knöcheln), Flush, Kopfschmerzen, Palpitationen und Müdigkeit; die meisten sind dosisabhängig.
Häufig gestellte Fragen
Is Sildenafil Citrate better than Amlodipine? ▾
Sildenafil Citrate and Amlodipine are not "better or worse" — they treat different things. The sensible question is which fits your specific need.
Can Sildenafil Citrate and Amlodipine 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 Amlodipine
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