I agree 100% that we need to be our own advocate and we certainly have the right to refuse a certain medication. However, imo, it is never a good thing to come off like a total "know it all". Actually that's probably pretty good advice no matter what the topic and our background.
If we remain open minded and interested in learning about different therapies and wiling to respect/consider the provider's rationale for why they suggested a certain medication we might just learn something.