Viagra remains one of the most frequently prescribed treatments for erectile dysfunction (ED). But there are still questions surrounding its usage; such as its mechanism, effects on libido and more.

Viagra works to treat Erectile Dysfunction by increasing blood flow to the penis, which in turn helps you achieve and sustain an erection during sexual activity. It may also improve arousal, vaginal lubrication and orgasm for female users – although not directly increasing sexual desire; for this reason if your libido drops too low speak with your physician about other treatments which target sexual desire directly.

Viagra’s active ingredient, sildenafil citrate, is a PDE5 inhibitor. This means it blocks the action of PDE5, an enzyme in your body responsible for breaking down cyclic GMP that plays an integral role in producing an erection.

Prior to taking Viagra, it’s wise to consult your physician. Doing so could put your heart at risk as well as lead to uncontrollable painful erections which require immediate medical care – something many men with heart conditions have experienced in the past. Also inform your physician if you suffer from blood cell disorders like sickle cell anemia so they can monitor for potential side effects of Viagra usage.

Do not forget to inform your physician of all medications (prescription and nonprescription), vitamins, and supplements you are currently taking – these could interact with Viagra to either increase its effects or cause side effects; please see this article for more details about interactions between different medicines and Viagra.