In 1 tablet
20mg as tadarafil
Drug class name
Erectile dysfunction treatment
Dosage form
Film-coated tablets
Indications and effects
Erectile dysfunction (patients who are unable to achieve and maintain an erection sufficient for satisfactory sexual activity)
  • Patients with a history of hypersensitivity to the components of this product.
  • Patients receiving nitrates or nitric oxide donors. (nitroglycerin, amyl nitrite, isosorbide nitrate, nicorandil, etc.)
  • Patients receiving soluble guanylate cyclase (sGC) stimulator (Riociguat).
  • Patients for whom sexual activity is considered inappropriate, such as those with cardiovascular disorders.
  • Patients with unstable angina or those who have experienced angina during sexual intercourse.
  • Patients with uncontrolled arrhythmia, hypotension (blood pressure <90/50 mmHg) or uncontrolled hypertension (resting blood pressure >170/100 mmHg).
  • Patients with a history of myocardial infarction within the last 3 months.
  • Patients with a history of cerebral infarction or cerebral hemorrhage within the last 6 months.
  • Patients with severe hepatic impairment.
Dosage and Administration
  • The usual adult dosage is 10 mg of tadalafil orally once daily, approximately one hour before sexual activity. The dose may be increased to 20 mg for patients with organic or mixed erectile dysfunction who do not respond adequately to the 10 mg dose and who are judged to tolerate it well.
  • In patients with mild or moderate hepatic impairment, do not exceed 10 mg.
  • In both cases, the daily dose should be once, and the interval between doses should be at least 24 hours.
  • In patients with moderate or severe renal impairment, the starting dose should be 5 mg, and the administration interval should be at least 24 hours.
  • In patients with moderate renal impairment, the maximum dose should not exceed 10 mg, and if 10 mg is administered, the administration interval should be at least 48 hours.
  • Do not exceed 5 mg in patients with severe renal impairment.
  • It can be taken with or without food.
Cautions for use
  • Pay attention to cardiovascular status before starting treatment for erectile dysfunction, as sexual activity poses a risk to the heart.
  • A small number of cases of a prolonged or sustained erection lasting more than 4 hours (painful erection lasting more than 6 hours) have been reported in foreign clinical trials with other PDE5 inhibitors. If symptoms of an erection lasting more than 4 hours are observed, patients should be instructed to seek medical advice immediately, because failure to promptly treat sustained erection may result in damage to penile tissue or permanent impairment of erectile function.
  • Patients should be instructed to discontinue taking the drug and seek immediate medical attention from an ophthalmologist if they experience a sudden decrease in vision or a sudden loss of vision after taking the drug.
  • Since dizziness and visual disturbance have been observed in clinical trials, caution should be exercised when working at heights, driving a car, or operating other dangerous machinery.
Storage method
Store at room temperature