General Practitioners -- and not just psychiatrists -- may legally and properly prescribe naltrexone as indicated in this New York Times article.
http://www.nytimes.com/2009/05/12/health/12bside.htmlGo to
http://www.aaap.org -- addiction psychiatrist website with information authorizing the use of naltrexone.
Also, bring a copy of the book, "The Cure for Alcoholism" and highlight the chapter addressed to health care professionals.
OOPS, RandallF, I accidentally deleted your post. You should re-post. Sorry.
Nick