Viagra, or sildenafil, primarily treats erectile dysfunction (ED). It works by increasing blood flow to the penis, allowing for easier erection.
How it works: Viagra inhibits an enzyme called phosphodiesterase-5 (PDE5). This enzyme breaks down a chemical called cyclic GMP, which is crucial for achieving and maintaining an erection. By blocking PDE5, Viagra allows cyclic GMP to remain active longer, resulting in improved blood flow.
Important note: Viagra doesn’t create sexual desire; it helps men with ED achieve an erection in response to sexual stimulation.
Beyond ED: While primarily used for ED, Viagra also treats pulmonary arterial hypertension (PAH), a condition where blood pressure in the arteries leading to the lungs is abnormally high. It improves blood flow in these arteries, easing the strain on the heart.
Dosage and side effects: Dosage varies depending on individual needs and medical history. Common side effects include headaches, flushing, nasal congestion, and visual disturbances. Always consult a doctor before taking Viagra to determine the appropriate dose and discuss potential risks.
Precautions: Viagra isn’t suitable for everyone. Men with certain heart conditions, low blood pressure, or who take specific medications should avoid it. Always discuss your medical history with your doctor before starting any treatment.
