Tadalafil tablets cannot treat premature ejaculation. Tadalafil tablets are mainly used in the clinical treatment of male erectile dysfunction, need sexual stimulation to promote the effectiveness of the drug, can be used to treat impotence, can not be used to treat premature ejaculation. Oral drugs for premature ejaculation are mainly 5-hydroxytryptamine reuptake inhibitors such as dapoxetine. Taking tadalafil tablets may cause adverse reactions such as headache, dizziness, palpitations, facial flushing, nasal congestion, dyspepsia, abdominal pain, gastroesophageal reflux, back pain, and myalgia. It is contraindicated in people who are allergic to certain ingredients of tadalafil tablets; in patients who have had a stroke within the last 6 months; in patients who have had a myocardial infarction within the last 90 days; under 18 years of age; and the drug cannot be used in women. It is recommended to use the medication under the supervision of a physician, do not take the medication on your own to avoid adverse reactions.