Sildenafil is the active component of Viagra. It works by inhibiting an enzyme called phosphodiesterase-5 (PDE5).
PDE5 normally breaks down cyclic guanosine monophosphate (cGMP), a molecule crucial for blood vessel relaxation. By blocking PDE5, sildenafil allows cGMP levels to rise, leading to increased blood flow to the penis. This mechanism facilitates an erection.
Sildenafil’s effects are not instantaneous. It typically takes 30-60 minutes to become fully effective. The duration of its effect varies, but generally lasts for several hours.
Important Note: Sildenafil is a prescription medication. Consult your doctor before using it, especially if you have heart conditions, high blood pressure, or are taking other medications. Incorrect usage can lead to adverse effects.
Dosage varies depending on individual needs and health conditions. Your physician will determine the appropriate dose for you.
Many generic versions of Viagra contain sildenafil citrate. These generics are usually cheaper than the branded medication, offering a cost-effective alternative. Always ensure the medication is sourced from a reputable pharmacy.
