Can there be people with adverse reactions to most medications?

Yes. There are individual differences and sensitivities. However, it is very rare for a person to have adverse reactions to "most" medications since all of the medications are different and work through different pathways. Check w/your doctor.

Related Questions

Can there be people with adverse reactions to most medications that forces them to some other way of curing?

Alternative Medicine. Yes. Many people do seek alternative medicine. It is important that your doctor knows when you are doing this as some of the alternative medicine can interact with the medications doctors give. Medicine has advanced recently and there are usually more than one treatment alternative. Some alternative medicine has research studies demonstrating some benefits. Read more...