The correct name of tadalafil should be tadalafil, generally can be taken together with dapoxetine, but need to be used with caution, specific instructions for the use of medication. 1. Tadalafil is indicated for the treatment of erectile dysfunction in men and should be contraindicated in people who are taking guanylate cyclase stimulators and nitrates, people who have previously lost vision on one side of the optic nerve due to non-arteritic ischemic lesions of the anterior part of the optic nerve, people who are at risk of potential cardiac disorders, and people who are allergic to this product. Common adverse reactions include flu, back pain, headache, upper respiratory tract infection, and cough. 2. Dapoxetine is indicated for the treatment of premature ejaculation and poor ejaculatory control. It should be contraindicated in people who are allergic to the drug, have significant pathological conditions of the heart, with moderate or severe liver injury. Common adverse reactions include dizziness, headache, nausea, diarrhea, insomnia and fatigue. Tadalafil and dapoxetine generally do not have significant drug interactions, but dapoxetine may decrease standing endurance, so it should be combined with tadalafil with caution. Specific drugs should be used under the guidance of a specialist.