Sildenafil citrate, a prescription drug, is utilized for treating erectile dysfunction in men and pulmonary arterial hypertension in both genders. It functions by inhibiting enzymes that hinder blood vessel dilation and free circulation. Its effectiveness is proven in various conditions including diabetes and spinal cord injury. Within six months of FDA approval, 5.3 million prescriptions were issued. It comes in three dosages: 25mg, 50mg, and 100mg. The effects of the 100mg dosage are stronger but don't last longer than the 50mg dosage. It's crucial to follow the provided drug information and store it properly.

Viagra, containing the active ingredient sildenafil, is used for treating erectile dysfunction in men by enhancing blood flow to the penis. User reviews on Drugs.com, Chemist Click, and ZavaMed suggest its effectiveness, with 83% of 227 users reporting positive experiences. Common side effects include headache, facial flushing, and upset stomach, but these are typically mild and temporary. It's a prescription medication, so it's crucial to adhere to the prescribed dosage. User reviews indicate that Viagra is a successful treatment for erectile dysfunction, despite potential mild side effects.