What is the difference between MAOI and benzodiazepine?

It is something that is not a benzodiazapine. Benzodiazapine is a class of drugs that are used to relax and help symptoms of anxiety and sleeplessness. Obviously there are many more classes of drugs than these too numerous to mention. There are great web sites out there to look drugs up on. an example of a "benzo" is Klonopin, or the generic is clonazepam. They can be a very addictive class of drugs for some people.