If I understand correctly, you're suggesting doctors should try medications on themselves first before prescribing? If that is correct, it's a ridiculous idea as it has no bearing on what you'll experience from taking the medication. For example, suppose you were to take Seroquel. Given that you're diabetic, you may become hyperglyemic, however, if a non-diabetic doctor were to try Seroquel, they may not experience that side-effect and wouldn't face possibly risks of DKA. In other words, it's meaningless. Additionally, the dose-response curve for the doctor may be completely different for you and different for a different doctor. If you extend it to non-psychiatric medications, then you're suggesting oncologists should try chemotherapy despite not actually needing it just to get a taste of what it's like.