Detailed information
I. Core Efficacy and Characteristics
- Indications: Treatment of erectile dysfunction (ED) in men;
- Mechanism of Action: Increases blood flow to the corpora cavernosa by inhibiting phosphodiesterase type 5 (PDE5), requiring sexual stimulation to be effective;
- Efficacy Characteristics: A "long-acting" ED treatment, its effects last approximately 36 hours, and absorption is not affected by a high-fat diet.
II. Key Points for Use
- Dosage and Administration:
1. As needed: The recommended starting dose is 10mg (half a tablet), taken 30 minutes to 1 hour before sexual activity;
2. Dosage Adjustment: Based on individual response and tolerability, the dose can be adjusted to 20mg (1 tablet) or 5mg (1/4 tablet);
3. Frequency Limitation: The maximum dose within 24 hours should not exceed 20mg.
Precautions
Contraindications:
1. Contraindicated in patients with hypersensitivity to tadalafil or its excipients;
2. Contraindicated in patients currently taking nitrates (such as nitroglycerin) (may cause severe hypotension);
3. Contraindicated in patients with severe cardiovascular disease or severe hepatic or renal insufficiency.
Precautions:
1. Must be purchased and used with a doctor's prescription;
2. Mild adverse reactions such as headache and indigestion may occur, which are usually tolerable;
3. Avoid concurrent use with alcohol or potent CYP3A4 inhibitors (such as ketoconazole).

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