Viagra, or sildenafil citrate, primarily treats erectile dysfunction (ED), a condition where a man struggles to achieve or maintain an erection firm enough for satisfactory sexual intercourse. It works by increasing blood flow to the penis, facilitating erection.
How Viagra Works
Viagra inhibits an enzyme called phosphodiesterase-5 (PDE5). This allows increased levels of cyclic guanosine monophosphate (cGMP), a molecule crucial for achieving and maintaining an erection. Higher cGMP levels lead to relaxed blood vessels in the penis, resulting in increased blood flow.
Beyond Erectile Dysfunction
While ED is its primary application, Viagra also finds use in treating pulmonary arterial hypertension (PAH), a condition marked by high blood pressure in the arteries carrying blood to the lungs. In PAH, Viagra improves blood flow to the lungs, easing symptoms.
Important Considerations
Consult your doctor before using Viagra. It’s crucial to discuss your medical history, including existing conditions and medications, to ensure safety and avoid potential interactions. Side effects, though generally mild, can include headache, flushing, nasal congestion, and visual disturbances. Serious side effects are rare but require immediate medical attention. Do not take Viagra if you have heart problems or are taking nitrates.
Dosage and Administration
Your doctor will determine the appropriate dosage. Typically, Viagra is taken orally, about an hour before sexual activity. Following your doctor’s instructions is paramount for optimal results and minimizing risk.
