Detailed information
Efficacy and Characteristics
- Indications: Used to treat erectile dysfunction in men; requires sexual stimulation to be effective.
- Mechanism of Action: Improves erectile function by inhibiting phosphodiesterase type 5 (PDE5), dilating blood vessels in the corpora cavernosa, and increasing blood flow.
- Efficacy Characteristics: A "short-acting" ED medication, typically taking effect 30-60 minutes after administration, with effects lasting approximately 4-6 hours.
Usage Instructions
- Dosage and Administration:
1. Take as needed. The recommended starting dose is 50mg (1 tablet), taken approximately 1 hour before sexual activity.
2. Depending on individual response and tolerance, the dose may be adjusted to 100mg (2 tablets) or reduced to 25mg (half a tablet).
3. Do not take more than once within 24 hours.
Contraindications
1. Not for use by individuals allergic to sildenafil or its excipients;
2. Not for use by individuals currently taking nitrate medications (such as nitroglycerin) (may cause severe hypotension);
3. Not for use by patients with severe cardiovascular or cerebrovascular diseases or retinopathy (such as retinitis pigmentosa).
Precautions
1. This is a prescription drug and requires a doctor's prescription for purchase and use;
2. Mild adverse reactions such as headache, facial flushing, and indigestion may occur, which usually resolve on their own;
3. Avoid taking this medication concurrently with alcohol or high-fat foods (may affect efficacy or worsen side effects).

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