Good post!
I have always been interested in pharmaceuticals. Don't know why. All the benzos, bp drugs, heart meds, anti depressants etc. I like to know how things work.
I also like to know how they work in my body. I think everyone is different so things won't work the same for all. I know some people who get totally amped on benadryl but it's the main ingredient in Tylenol PM.
I would go for the second opinion.