Concerns had been raised that the benefit of 60 mg compared with 30 mg was considered too modest to outweigh the potentially increased risk for severe events of syncope. What may be causing my premature ejaculation? Alcohol and recreational drugs should be avoided when taking dapoxetine. Silodosin Rapaflo. No statistical analysis was presented for the safety outcomes.Less frequently reported treatment-emergent adverse events include erectile dysfunction, flushing, palpitations, upper respiratory tract infection, nasopharyngitis, loss of libido, . The following is a list of some medicines and drugs that may cause erectile dysfunction (ED) in men. There may be additional drugs other than those on this list that can cause . At present it is not clear whether adding the new drug dapoxetine in men whose underlying erectile dysfunction (ED) has been successfully treated will improve their symptoms of .