Absolutely not; I would not do it.
I'm co-author of a study looking at patients who switched from one brand name to another—so I'm not even talking about generic drugs. It was predicted by B.C., where I'm from, that it would save $42 million in health care costs, and it actually cost $43 million. It's a published study.
This was just from switching patients to a cheaper medication. It didn't work. Patients are not all the same. You can't do that. What works for me is not going to work for you. Even if you bring it down to a simple thing like fruit, we can't even eat the same fruit, probably.