Description
**An active prescription is required to dispense this medication**
Sildenafil is a medication primarily used to treat erectile dysfunction (ED) and pulmonary arterial hypertension (PAH). It works by increasing blood flow through the relaxation of blood vessels, particularly in the penis and lungs. It’s best known under the brand name Viagra for ED treatment. Sildenafil typically starts working within 30 to 60 minutes and can remain effective for up to 4 hours.
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