Here you need to know that tramadol is also a good pain killer, as per you hip, neck and any other body part if there is pain first you need to know why it is paining? What is the basic cause of this pain? Until and unless you Dont treat the basic cause of pain it will not help you so much taking pain killer all the time. So get your pain evaluated with x ray or scan of respected body part and checked it with orthopedic doctor. You can also check your complete blood count as well calcium and vitamin d test to know there should not be any thing wrong here. For your question on drug interaction. Let me tell you, your doctor must have given you medication after evaluating your condition properly and do not change drug dosage or the drug on your own. If you think this is not working for you talk to him and ask him to change the drug or dosage as per your body requirements with complete evaluation of basic cause of pain. Take care.