I am facing ED problem from last 2 to 3 years. My reports are also good. I Tried certain tablets but no result. But almost from last year I tried Midfil 5mg and Serta 25mg. These two tablet showed result. But once I stopped them again after a week or two I am getting the same problem again. Please advise If I am taking these tablets continue for say 20 years as my age is now 35. Will there be any side effect on my body or other effects? Thank you in advance!