Viagra, or sildenafil citrate, primarily treats erectile dysfunction (ED). It works by increasing blood flow to the penis, facilitating an erection. This effect occurs because Viagra inhibits an enzyme called phosphodiesterase-5 (PDE5), which regulates blood vessel dilation.
Who Can Use Viagra?
Men diagnosed with ED by a doctor are the primary candidates. A medical evaluation is crucial to rule out underlying health issues and determine appropriate dosage. Men with certain heart conditions, liver or kidney problems, or those taking specific medications should discuss Viagra use with their physician.
How Viagra Works: A Closer Look
Sexual stimulation triggers the release of nitric oxide, leading to increased cyclic GMP levels. This, in turn, relaxes the smooth muscles in blood vessels, allowing for increased blood flow. Viagra enhances this process by preventing the breakdown of cyclic GMP, extending its effects. This improved blood flow is what facilitates achieving and maintaining an erection.
Important Considerations
Dosage: Your doctor will determine the correct dosage based on individual needs and health status. Side effects: Common side effects include headache, flushing, nasal congestion, and visual disturbances. Serious side effects are rare but require immediate medical attention. Interactions: Viagra can interact with certain medications, so inform your doctor of all current medications. Always follow your doctor’s instructions carefully.
Beyond Erectile Dysfunction
While primarily used for ED, Viagra has shown promise in treating pulmonary arterial hypertension (PAH), a condition causing high blood pressure in the arteries leading to the lungs. This use is however, under specific medical supervision.
