Plan B vs Viagra Professional: side-by-side comparison
Plan B (Hormone und Empfängnisverhütung) and Viagra Professional (Erektile Dysfunktion (ED)) belong to different therapeutic classes and are rarely interchangeable. This page compares the medications' purposes, mechanisms and the situations where each is used.
| Property | Plan B | Viagra Professional |
|---|---|---|
| Active ingredient | Levonorgestrel | Sildenafil Citrate |
| Manufacturer | Foundation Consumer Healthcare | Pfizer |
| Class | Hormone und Empfängnisverhütung | Erektile Dysfunktion (ED) |
| Strengths | 1.5mg | 100mg |
| Forms | tablet | sublingual tablet |
What's the same
Plan B and Viagra Professional are used in very different patients, and the points in common are limited. The main shared element is that both meet regulatory standards for efficacy and safety and benefit from pharmacist oversight.
Key differences
Plan B belongs to Hormone und Empfängnisverhütung while Viagra Professional belongs to Erektile Dysfunktion (ED). Indications, mechanisms and target populations differ. The comparison is most useful when a clinician has mentioned both medications and the patient wants to understand where each fits.
Mechanism and action
Plan B: Der primäre Wirkmechanismus von Plan B ist die Verzögerung oder Verhinderung des Eisprungs, wenn es vor dem LH-Anstieg eingenommen wird. Viagra Professional: Sildenafilcitrat hemmt die PDE5, sodass das während der sexuellen Erregung produzierte zyklische GMP im Penisgewebe akkumulieren kann, was die glatte Muskulatur der Penisarterien entspannt und den Bluteinstrom erhöht.
When Plan B is preferred
Plan B ist zur Notfallkontrazeption nach ungeschütztem Geschlechtsverkehr oder bekanntem/vermutetem Verhütungsversagen bei Frauen im gebärfähigen Alter indiziert.
When Viagra Professional is preferred
Viagra Professional ist für erwachsene Männer mit erektiler Dysfunktion bestimmt.
Häufig gestellte Fragen
Is Plan B or Viagra Professional better? ▾
Plan B and Viagra Professional are not interchangeable — they treat different conditions. Asking which is "better" is meaningful only when a clinician has weighed both for the same specific clinical scenario.
Can I switch from Plan B to Viagra Professional? ▾
Switching between Plan B and Viagra Professional is rarely an appropriate decision since they belong to different classes and treat different conditions. The real question is usually whether the diagnosis calls for one medication or the other — which the prescriber resolves.
Do Plan B and Viagra Professional have the same side effects? ▾
No — they belong to different classes and have distinct side-effect profiles. Each medication has its own prescribing information.
More Plan B comparisons
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