What is the active ingredient in Viagra?
the active ingredient is sildenafil citrate
There is evidence that Sildenafil - the active ingredient in Viagra - is helpful for women who experience sexual problems while on some antidepressants. That said, Viagra is a drug with side effects - it was originally developed as a medication for heart troubles - so should not be used except on qualified medical advice.
Viagra is a formulation.It does not have a structural formula.The active ingredient is sildenafil citrate.and the formulation contains microcrystalline cellulose,calcium hydrogen phosphate(anhydrous),croscarmellose sodium and magnesium stearate in the core and HPMC, lactose, titanium dioxide, TEC and indigocarmine blue colour in the coating.