Sometimes I feel a drastic pain in my stomach and I feel like vomiting also. I have seen many doctors but no one was able to cure it. It goes when I take pills but as soon as the time passes the pain comes back. It is a regular pain and now I donât understand what to do. My friend has suggested me peptic defense and I want to know is it ok to use any pill without doctorâs prescription. I have heard that it is given to the one who has stomach cancer. Do you think I need to test this pill first?