I Watched A Video On Top Foods To Give Your

I watched a video on top foods to give your body its best defense against cancer, but Dr Paul Anderson also mentioned some drugs, such as Glucaphage & Metformin. He said Metformin can cause digestive upset, so he mentioned another one that sounded like Bergarin. He said it also controls blood pressure & has been recently found to anti-cancer effects. Can you tell me the name of this medicine, please?