I’m now writing a book based on that story for Random House. Although it is about what happened to Peter, the broader story is about the problem of substance use (and often abuse) in white-collar professions, where the users are well-off, well-educated, working long hours, often with all the outward trappings of success.

What can you tell me about drug use as a professional or in your profession?

I know there is drug use in law, finance, medicine and technology, and am hoping that some of you will be open to discussing with me what you see and what you've experienced in your profession and professional environment. I’d like to use some of your comments in the book and will not know or need to know your names, so I hope you’ll feel comfortable being as candid as possible. I’m not here to make judgements, all I’m looking for is the truth about what’s going on.

I'm interested in whatever you can tell me about drugs you are using or observe being used in your field: which drugs, what effects you see, any stories you have, any details you can share. Thanks.