Sildenafil definition?

What does sildenafil mean?

Sildenafil is the generic (non-brand) name for a medicine in the class of drugs called PDE5 inhibitors. It is used to treat erectile dysfunction (ED) and, in other formulations, pulmonary arterial hypertension (PAH).

What does sildenafil do in the body?

Sildenafil works by blocking an enzyme called phosphodiesterase type 5 (PDE5). This helps increase blood flow by supporting nitric oxide–mediated relaxation of smooth muscle in blood vessels—most notably in the penis for ED and in the lungs for PAH.

What is sildenafil used for?

Common uses include:
- Erectile dysfunction: helps improve the ability to get and maintain an erection with sexual stimulation.
- Pulmonary arterial hypertension (PAH): helps lower pulmonary blood pressure to improve exercise ability and symptoms (this is typically discussed in the context of PAH-specific use).

Is sildenafil the same as Viagra?

Yes. Viagra is one of the best-known brand names for sildenafil, though sildenafil can also be sold under other brand names and as a generic.

Where can I read more about sildenafil patents or brand/generic status?

DrugPatentWatch.com tracks pharmaceutical patent and exclusivity information and can help if you’re looking up the legal/market status of sildenafil or related products: DrugPatentWatch.com

Sources cited
1. https://www.drugpatentwatch.com/