Viagra vs Sildenafil Citrate: are they the same?
Viagra is a commercial brand whose active ingredient is exactly Sildenafil Citrate. This page explains what that means in practice: where they differ (brand, manufacturer, price, available strengths), why they are clinically equivalent, and when the brand or an authorised generic is the better choice.
Are they the same?
Yes — Viagra contains Sildenafil Citrate as its active ingredient. Talking about "Viagra" in clinical terms is the same as talking about Sildenafil Citrate at the dose strengths 25mg, 50mg, 100mg. The differences from the authorised generic are brand, manufacturer (Pfizer), excipients, tablet appearance and price — not the active molecule itself.
When Viagra is used
Das Arzneimittel ist bei erwachsenen Männern zur Behandlung der erektilen Dysfunktion angezeigt, definiert als die Unfähigkeit, eine für sexuelle Aktivität ausreichende Penisrektion zu erreichen oder aufrechtzuerhalten.
Mechanisms compared
Because they share the same active ingredient, the mechanism is identical: Während der sexuellen Stimulation wird im Corpus cavernosum Stickstoffmonoxid freigesetzt, das ein Enzym aktiviert, das cGMP produziert.
Brand or generic — which to choose?
For most patients, authorised generics of Sildenafil Citrate are clinically equivalent substitutes for Viagra and typically cost substantially less. The practical differences are manufacturer, excipients (rarely matters except in specific sensitivities), tablet appearance and price. The brand is preferred by some patients for personal reasons or insurance coverage; the generic is the default when cost matters.
Häufig gestellte Fragen
Is Viagra the same as Sildenafil Citrate? ▾
Clinically yes — Viagra is the brand and Sildenafil Citrate is its active ingredient. At equivalent doses (25mg, 50mg, 100mg) they produce the same effect. The difference is brand, manufacturer (Pfizer) and price.
Is generic Sildenafil Citrate as effective as Viagra? ▾
Yes. Authorised generics of Sildenafil Citrate must demonstrate bioequivalence to the brand. The active substance is the same; average effect is the same. Price is usually substantially lower.
Why does Viagra cost more than generic Sildenafil Citrate? ▾
The price difference reflects originator development costs, brand recognition and competition among generic manufacturers. The molecule is identical; the cost is not.
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