Tadalafil can usually be taken every day, but the dosage needs to be adjusted according to your situation. The medication should be taken as prescribed by your doctor. Tadalafil is suitable for the treatment of male erectile dysfunction symptoms, the drug can be taken as needed, specifically before sexual intercourse, but also can be taken daily in small doses, the specific dosage needs to be adjusted in accordance with their own situation, if the daily use of the drug does not need to consider when to have sex. The drug is contraindicated in groups such as those who are taking guanylate cyclase stimulators, nitrates, those who have lost vision on one side of the eye due to a previous non-arteritic ischemic lesion affecting the anterior part of the optic nerve, those who have an underlying risk of cardiac disease, and those who are allergic to the product. Common adverse reactions after administration include flu, back pain, headache, dyspepsia, upper respiratory tract infection, nasopharyngitis, cough, flushing, influenza, myalgia, and cough. Specific medications should be used under the direction of a specialist.