By blocking its effects, sildenafil improves blood supply to the tissue and makes it easier to get — and stay — hard.

Viagra and sildenafil are effective treatment options ... and they’re available in 25-, 50-, and 100-mg tablets. One benefit of using Roman is the variety of additional ED medications available ...

Purpose: The stability of sildenafil citrate 2.5 mg/mL in two extemporaneously prepared oral suspensions stored at 4 and 25 ºC was studied. Methods: Thirty 25-mg tablets of sildenafil citrate ...