Sildenafil citrate is a PDE5 inhibitor used to treat erectile dysfunction (ED) and pulmonary arterial hypertension (PAH). The drug works by increasing cGMP levels, relaxing blood vessels, and improving circulation in targeted areas like the penis and lungs. Originally developed for heart conditions, it is now widely prescribed for sexual dysfunction and PAH management.
Generic Viagra is available in 25mg, 50mg, 100mg, and 200mg doses. It remains active for 4-6 hours, with peak effects occurring 1-2 hours post-ingestion. Fatty meals, alcohol, and grapefruit juice can delay absorption. Side effects include headaches, flushing, dizziness, and nasal congestion, while serious risks involve vision loss, priapism, or severe hypotension.
Generic sildenafil offers the same effectiveness as Viagra but at a lower cost. Popular brands include Cenforce, Fildena, Kamagra, and Eriacta, available through online and local pharmacies at varying prices.
