Take, for example, medical marijuana. It actually handles some of those side effects that chemo-therapy causes, including pain and loss of appetite. Chemo patients I've known swear by it over the artificial prescription cannabis. It's also been used for decades to help prevent blindness in glaucoma patients.
There are other alternative methods of medicine that have proven that they work without the side effects of current drugs.
Today, we have to look at if a drug's benefits actually outweigh the bad side effects.