How does Sidenafil work?
Sildenafil works by inhibiting an enzyme called phosphodiesterase type 5 (PDE5). This enzyme breaks down cyclic guanosine monophosphate (cGMP), a molecule that promotes the relaxation of smooth muscle and increases blood flow. By inhibiting PDE5, sildenafil allows cGMP to accumulate, leading to prolonged smooth muscle relaxation and increased blood flow to the penis. This enhanced blood flow helps to achieve and maintain an erection when combined with sexual stimulation
Will 20 mg of sildenafil help with erections?
Taking a 20 mg dose of sildenafil may help improve your erections. While Viagra is typically available in doses as low as 25 mg, the usual starting dose is 50 mg. If you experience any uncomfortable side effects, your dosage may be adjusted to 25 mg.