Hi Dear , As per your query you are having problem known as tinnitus . Well the medicines like tinnex and cognix are known to be very effective as far as tinnitus is concern . Nearly all the drugs come with certain side effects , but usually benefits are consider more important then side effects until side effects reach certain level . Moreover side effects depend upon dosage of drug , frequency of drug and duration of drug , which is to be decided by doctor who prescribed you these drugs . Doctor will certainly prescribe you what is in your best interest . So start taking these medicines as per prescriptions . Along with that do undergo proper checkup to rule out any underlying disease . Hope your concern has been resolved. Get Well Soon. Best Wishes, Dr. Harry Maheshwari