Sildenafil

Sildenafil is a medication primarily used to treat erectile dysfunction (ED) in men. It is also prescribed for the treatment of pulmonary arterial hypertension (PAH). Sildenafil is widely recognized under the brand name Viagra, but it is also available in generic forms.

Here is some important information about sildenafil:

1. Mechanism of Action: Sildenafil belongs to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. It works by inhibiting the action of the PDE5 enzyme, which helps relax the blood vessels in the penis and increases blood flow. This enhanced blood flow facilitates the ability to achieve and maintain an erection during sexual stimulation.
2. Usage for Erectile Dysfunction: Sildenafil is typically taken as needed, approximately 30 minutes to 1 hour before sexual activity. It is available in tablet form, with varying strengths, including 25 mg, 50 mg, and 100 mg. The recommended starting dose is often 50 mg, but the dosage may be adjusted based on individual response and tolerability. It is important to follow the instructions provided by your healthcare provider or the information on the medication label.
3. Side Effects: Common side effects of sildenafil may include headache, flushing, indigestion, stuffy or runny nose, dizziness, and visual disturbances. These side effects are typically mild and transient. However, in rare cases, more severe side effects such as priapism (prolonged erection) or sudden vision or hearing loss have been reported. If you experience any unusual or persistent side effects, it’s important to seek medical attention.