If a man suffers from both erectile dysfunction and premature ejaculation, sildenafil and dapoxetine can be taken at the same time, but should follow the doctor’s instructions. Sildenafil is commonly used to treat erectile dysfunction in men, while Dapoxetine is used to treat premature ejaculation, before using the medication must go to the hospital, after a professional doctor’s guidance on symptomatic treatment of medication. If you are not suffering from erectile dysfunction and premature ejaculation at the same time, these two drugs are to be used separately, not together. It is forbidden to take sildenafil and nitrate at the same time (regardless of whether the latter is used regularly or intermittently). Dapoxetine is contraindicated in people who are allergic to the drug, in patients with a significant pathological condition of the heart, in patients with moderate and severe liver damage. Even if patients have both diseases need to use the drug together, they need to pay attention to grasp the time of the drug’s action, and the time and dosage of the drug must be guided by a professional doctor, not to be used on their own, in order to avoid the occurrence of serious adverse reactions.