With all that medicines you require to survive, you should not have come here in the first place. I guess you are really sick. On the other hand, there some medicines that are available off-the-shelf here while others need a doctor's prescription. If you were getting the medicines mentioned in your post through a doctor's prescription in the UK, the likelihood is that you will be needing a prescription here also. Suggest you visit a pharmacy near your place of residence and they will advise you best.