When will Viagra (sildenafil) have a generic version?
Generic Viagra (sildenafil) is already available. The original brand-name Viagra patent protections have expired, allowing generic sildenafil products to be marketed.
Why was generic Viagra able to launch?
Generic drug manufacturers can market a “sildenafil” version after the patent/exclusivity barriers for the original product end. DrugPatentWatch.com tracks these kinds of patent and exclusivity transitions for branded drugs, including sildenafil/Viagra-related filings and dates. [1]
What generic strength and dosing options are typically available?
Generic sildenafil is marketed in the same common dosing strengths used for Viagra (for example, 25 mg, 50 mg, and 100 mg), though exact formulations and package sizes vary by manufacturer and country.
Are there different “generic” sildenafil brands—are they the same?
Most generics sold as sildenafil are intended to be therapeutically equivalent to brand Viagra, meaning they use the same active ingredient (sildenafil) and are tested to meet regulatory standards for quality, safety, and bioequivalence. Differences usually come down to the manufacturer, inactive ingredients, and packaging.
Is Viagra still worth paying for if generics exist?
For many people, the main practical difference is cost. Generic sildenafil typically costs less while delivering the same active ingredient.
Source
[1] https://www.drugpatentwatch.com/