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Sildenafil

Viagra is a well-known PDE5 inhibitor that enhances sexual performance.

Explore the key attributes of Sildenafil below:

Mechanism of Action

• Sildenafil inhibits the enzyme PDE5, preventing the breakdown of cGMP. This increases blood flow to the penis during sexual arousal.
• This process facilitates the achievement and maintenance of an erection.

Indications

• The primary indication for Sildenafil is the treatment of erectile dysfunction in men.
• Additionally, it can be used for managing arterial hypertension under the brand name Revatio.

Onset of Action

• The action of Sildenafil typically begins within 30 minutes, although it may take up to 1 hour for some individuals.

Duration of Action

• The effects last approximately 4 to 5 hours, allowing sufficient time for erection maintenance.

Dosage

• The recommended starting dose for most users is 50 mg, adjustable based on effectiveness and tolerance.
• For optimal results, it should be consumed 30 minutes to 1 hour before anticipated sexual activity.

Side Effects

• Common adverse effects include headache, facial flushing, indigestion (like nausea and diarrhea), vision alterations (such as blurred vision), increased blood pressure, and, in rare cases, hearing issues.

Contraindications

• Sildenafil should not be taken with nitrates (e.g., nitroglycerin) due to the risk of a significant drop in blood pressure. It is not recommended for those with severe heart conditions or individuals who have recently suffered a myocardial infarction or stroke.