Viagra, or sildenafil citrate, primarily treats erectile dysfunction (ED). It works by increasing blood flow to the penis, facilitating an erection. This effect results from inhibiting an enzyme called phosphodiesterase-5 (PDE5).
How Viagra Works
PDE5 breakdown of cGMP, a molecule crucial for penile erection, is blocked by Viagra. Higher cGMP levels lead to relaxed penile muscles and improved blood flow. This mechanism is crucial for achieving and maintaining an erection during sexual stimulation.
Beyond Erectile Dysfunction
Beyond ED, Viagra has shown promise in treating pulmonary arterial hypertension (PAH), a condition causing high blood pressure in the arteries leading to the lungs. Its impact lies in improving blood flow to the lungs, easing breathing difficulties and improving exercise tolerance. Consult a doctor for diagnosis and treatment; Viagra is not a self-treating solution for PAH.
Important Considerations
Side effects can include headaches, flushing, nasal congestion, and visual disturbances. Serious side effects are rare but necessitate immediate medical attention. It’s crucial to discuss potential interactions with other medications with your physician before use, especially nitrates. Viagra is only prescribed for men aged 18 and above. Dosage varies, and your doctor will determine the appropriate amount for you.
