Naltrexone is an opiate antagonist drug developed in the 1970s and approved by the FDA in 1984 for opiate and drug abuse treatment. When used at much lower doses in an off-label protocol referred to as low-dose naltrexone (LDN), the drug has been show to halt disease progression or reduce symptoms in a number of diseases and conditions, including Crohn's disease, cancer, multiple sclerosis, autism, and Parkinson's disease. Grounded in clinical and scientific research, this book for patients and professionals describes the history of naltrexone, its potential therapeutic uses, its effects on the immune system, its pharmacological properties, and how the drug is administered. A patient's guide to the LDN experience gives stories of several patients helped by the drug. The book also lists fillers and compounding pharmacies, doctors who prescribe LDN, clinical trials, and electronic and organizational patient resources. A glossary is included. Moore has written previous books on health issues. Wilkinson is a patient advocate who has benefited from LDN for her multiple sclerosis. Annotation ©2009 Book News, Inc., Portland, OR (booknews.com)