One nice thing about Vietnam, if you get sick, you will get all sorts of medicine. Below is what my doctor recommended to me yesterday for my knees and ankle.Normally my friends and I Google each medicine we get.
Edit 1: Two of the drugs were removed in the US for fatal interactions, one is dangerous for the heart. One of the drugs is only for ulcers. The other two were okay, one is a natural medicine and the last just calcium.