Tadalafil 5 mg taken continuously for one month generally causes no other effects if no adverse reactions to the drug develop. In two trials of tadalafil in men taking tadalafil 10 mg daily and 20 mg daily for 6 months, there were no significant differences in sperm concentration, sperm count, sperm morphology, sperm viability, and testosterone luteinizing hormone, follicle-stimulating hormone, and placebo compared to placebo. In the absence of adverse drug reactions, tadalafil 5 mg taken continuously for one month generally causes no other effects. Tadalafil clinical mainly applicable to erectile dysfunction, common adverse reactions for gastrointestinal reactions dizziness, headache, increased heart rate, etc.; contraindications mainly include allergy to the drug, taking nitrate drugs, etc.; for cardiac patients with potential cardiac risk, should be used with caution. It is recommended to go to the hospital for examination first, and use the drug under the guidance of the doctor to avoid abusing the drug by yourself.