Viagra, or sildenafil, primarily treats erectile dysfunction (ED). It works by increasing blood flow to the penis, facilitating an erection when sexually stimulated. This effect stems from inhibiting an enzyme called phosphodiesterase-5 (PDE5).
How Viagra Works
PDE5 breakdown of cGMP is a key factor limiting blood flow. Viagra blocks PDE5, increasing cGMP levels and consequently promoting vasodilation (widening of blood vessels). This allows more blood to enter the penis, creating a firmer erection. Remember, Viagra does not act as a direct stimulant; sexual stimulation is still required.
Beyond Erectile Dysfunction
Beyond ED, Viagra shows promise in other areas. Studies suggest potential benefits in treating pulmonary arterial hypertension (PAH), a condition involving high blood pressure in the arteries of the lungs. Doctors may prescribe it off-label for this purpose, depending on individual needs and health conditions. Always consult your physician before using Viagra for any purpose.
Important Considerations
Side effects can include headache, flushing, nasal congestion, and visual disturbances. Serious side effects, though rare, include heart problems. Interactions with nitrates (used to treat chest pain) are contraindicated due to risk of dangerously low blood pressure. Dosage is determined by your doctor; it varies based on individual factors. Consult a doctor before use, especially if you have pre-existing health issues such as heart disease.
Seeking Professional Guidance
Before using Viagra or any medication, consult your physician. They will assess your health, discuss potential risks and benefits, and determine the appropriate dosage. Self-medication can be dangerous. Always obtain a proper prescription.
