Sildenafil Citrate, widely known by its pharmaceutical brand name Viagra, is a phosphodiesterase type 5 (PDE5) inhibitor with one of the most extensively documented clinical histories of any pharmaceutical compound. FDA approved since 1998 and remaining the most studied PDE5 inhibitor in clinical literature. This formulation delivers 100mg per tablet in an effervescent format, dissolving in water prior to oral consumption rather than swallowing a solid tablet; supplied in a 7 tablet bottle.

Sildenafil’s mechanism of action operates through selective PDE5 enzyme inhibition. Sexual stimulation triggers nitric oxide release in the corpus cavernosum, which activates guanylate cyclase to increase cyclic GMP levels, producing smooth muscle relaxation and the vascular changes necessary for erection. PDE5 is the enzyme responsible for breaking down cyclic GMP by inhibiting PDE5, Sildenafil prolongs cyclic GMP’s vasodilatory signal, enhancing the natural erectile response to sexual stimulation rather than producing an erection independent of stimulation. This nitric oxide dependent mechanism is the key pharmacological distinction from injectable vasoactive treatments like Tri-Mix, which produce smooth muscle relaxation directly and do not require nitric oxide pathway activation or sexual stimulation to be effective.

The effervescent format is a meaningful pharmacokinetic distinction from standard Sildenafil tablets. Dissolving the tablet in water before consumption produces faster gastric absorption compared to a solid tablet that must first disintegrate, generally resulting in a shorter onset time to peak plasma concentration. This delivery format has been studied as a way to improve the time to effect profile for oral PDE5 inhibitors, an important pharmacokinetic consideration given Sildenafil’s known absorption variability when taken with food, which can delay onset with standard tablet formulations.

Every batch of CSD’s Sildenafil is third party lab tested for concentration accuracy and purity before being made available, with COA documentation available on request. Canada Steroid Depot has supplied Canadian customers with consistently verified, accurately dosed compounds for years. All orders ship discreetly across Canada in plain, unmarked packaging with no identifying information on the exterior.

Sildenafil should not be combined with nitrate medications (commonly prescribed for chest pain/angina), as this combination can cause a dangerous and potentially fatal drop in blood pressure. Consult a healthcare provider before use, particularly if you have cardiovascular conditions or take other medications.

Store in a cool, dry place away from direct light and heat.