I definitely have an extensive knowledge of pharmacology including the sub-disciplines of pharmacokinetics, pharmacodynamics, pharmacotherapy, and pharmacogenomics. Big words, I love them all. I mean even though I haven't studied this stuff in school it allows me to answer questions people have and I know how to ask pertinent questions in order to be prescribed the most effective medication for whatever I'm going through. I know the history of pharmaceuticals and their usage in society. I almost always scare or impress whatever psychiatrist I'm seeing. However, the current guy has me beat in terms of history knowledge. It's nice though, because he knows so much he is willing to work with medications and combinations that other doctors wouldn't touch with a yard-stick. Historical knowledge is so important in understand the popularity and usage of medications. For one due to sever side effects associated with the usage of the original antipsychotics, many of them have ceased to be used due to creation of the so called "safer" atypical antipsychotics. For example haloperidol used to be prescribed up to 30mgs, but it would cause sever side effects that could be permanent. Well after it saw much less use due to newer atypical antipsychotics some research was done that found it's maximum dosage in terms of achieving highest possible efficacy to be 8mgs. At 8mgs you see almost no serious side effects, at least no more than you'd see in an atypical antipsychotic. For many people haloperidol is also more effective than the new medications, so the ability and willingness to prescribe something like haloperidol in a world that is pressuring doctors to use the newest medication is a great tool for a doctor to have in their pocket. So I love pharmacology and its history.