California Poison Control System Answer Book, 2nd ed.
This book, in pdf format, contains commonly-asked questions about treatment for poisoning, plus safety and prevention tips.

FDA Approved Animal Drug List (The Green Book)
The Green Book contains information for the Generic Animal Drug and Patent Restoration Act that requires each sponsor of an approved animal drug must submit to the FDA certain information regarding patents held for the animal drug or its method of use. The Act requires that this information, as well as a list of all animal drug products approved for safety and effectiveness, be made available to the public.

Medical Aspects of Chemical and Biological Warfare
This site contains the full-text of the 1997 book in PDF format. The textbook concentrates on the management of casualties. Information is given on the identification, triage, and management of a variety of toxic substances.

NIOSH Pocket Guide to Chemical Hazards
The guide is intended as a source of general industrial hygiene information for workers, employers, and occupational health professionals. The Pocket Guide presents key information and data in abbreviated tabular form for 677 chemicals or substance groupings.

The Merck Manual of Diagnosis and Therapy
Seventeenth Edition, Copyright ) 1999 by Merck & Co., Inc., All Rights Reserved. This is a full-text version of the book. The manual can be searched by section, index, or keyword.