Question for Greg or anyone else who can help

I've been posting bout this terrible depression I have been going through. I decided if I keep myself busy I might be able to get through it. I am a childrens writer...unpublished as of now. I have written a series of childrens books about mental illnesses in children for them to read and relate to. I talked to a publisher last year and he suggested that I write to some of the drug companies that manufacture the medications to treat these illnesses, such a depression, OCD, bipolar disorder, panic disorder, among others. Here is where you all can help. I have been researching some of the drugs that I know and looking for the companies that manufacture them. I have quite a few but I'm looking for companies that may manufacture more than one psychiatric drug and so far I have only come up with on company...glaxosmithkline...they make wellburtin and Paxil. If you guys know anything that might help me could you either post it or email me. I think by finishing and trying to publish these books I may be able to help myself as well as others. Thanks so much!