Viagra vs generic: are they the same?
Viagra is the originator brand for the active ingredient Sildenafil Citrate. Once the original patent expired, authorised generic versions of the same active ingredient became available. For most users at 25mg, 50mg, 100mg, the practical question is: is the generic just as good, and what really differs?
What is the same
Authorised generics of Sildenafil Citrate contain the same active substance at the same 25mg, 50mg, 100mg strength as Viagra, with regulator-required bioequivalence to the originator. Clinical effect is, on average, the same. According to the prescribing information, generics meet the same regulatory standard and can substitute for the brand in most patients.
What can differ
Differences include manufacturer, country of production, excipients, tablet appearance, packaging and price. A small minority of patients react to a specific excipient that varies between manufacturers. Price is usually significantly lower for generics — often the most decisive practical difference for chronic use.
Frequently asked questions
Is generic Sildenafil Citrate as effective as Viagra? ▾
For most users at 25mg, 50mg, 100mg, yes — authorised generics of Sildenafil Citrate are required to demonstrate bioequivalence to Viagra and produce the same clinical effect on average. Some users notice no difference; a few report subjective differences that are usually due to excipients or expectation.
Why does Viagra cost more than the generic? ▾
The price difference reflects the originator's development costs, brand recognition and marketing, plus the larger volume and competition among generic manufacturers. The active ingredient Sildenafil Citrate itself is identical between brand and authorised generic at 25mg, 50mg, 100mg.
More on Viagra
- With alcoholViagra and alcohol — is it safe to drink?
- With foodShould Viagra be taken with food?
- Side effectsViagra side effects: common, rare and warning signs
- Dosage guideViagra dosage guide: how much to take and when
- OnsetHow fast does Viagra start working?
- DurationHow long does Viagra last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.