What is Sildenafil?
The short answer
In the US, you need a prescription to get Sildenafil.
What it is
Sildenafil: PDE5 inhibitor (not a peptide).
Relaxes blood-vessel smooth muscle.
What people look into
Sexual function
- 2 sources
- Status as of
- How we source
- Ellum doesn't sell peptides.
Get updates on Sildenafil
What it is
- Also known as
- sildenafil citrate, viagra, revatio, generic viagra
- How it works
- Relaxes blood-vessel smooth muscle.
Regulatory status
FDA-approved (Rx) How we label status
As of October 4, 2026, Sildenafil is an FDA-approved prescription drug for ED (Viagra), PAH (Revatio).
- Federal (FDA)
- Approved Rx (Viagra NDA020895 1998; Revatio NDA021845 2005; generics); label: ED (Viagra), PAH (Revatio)
- 503A compounding
- Approved-drug component (not in any 503A category) (as of May 14, 2026)
- WADA 2026
- Not named
References
Sources as of October 4, 2026