pills

duplix

Soon, I will run out of paludrine anti malaria pills. Therefore, I went to a Blueprint chemist. I had bought medicines before from that store, and they seemed to be ok. The guy at the counter gave me the asked medicine, but unfortunately, he had not enough in storage. But no problem, someone was going to get some for me. It turned out the second package's look was different from the first, but it had the same size and price. When I agreed to buy, the guy didnt want to give me a bill. I refused the medicines and went to another blueprint shop, so same company, different branch... And another package, with yet another price, but same size. Again, no bill. So how do I find out which one is genuine - or are all of them?
(All three packages had the same manufacturers name: Zeneca, although the last one had AstraZeneca on it, but produced by an indian company, which name I forgot)