Since the 1950s the Madagascar preiwinkle has been know to contain vinblastine, which is a powerful agent to protect against some forms of cancer. You can read about recent research here -
https://www.sciencedaily.com/releases/2018/05/180503142809.htmNow the queston is - why are scientists trying to create a synthetic product which will no doubt have side effects, when they could be using the natural product without having to spend millions on research.
Well of course we all know the answer to that!