Drug information refers to the provision of unbiased, well-referenced, and critically evaluated up-to-date information on any aspect of drug use. Poison information refers to a specialized area of a drug information that provides information on the toxic effects of an extensive range of chemicals, including plant and animal toxins.

The following notes include- objectives of drug information; types of drug information resources- primary, secondary, tertiary, internet, electronic bulletin board; systemic approach to drug information query; poison information center; organization of poison information center; functions of poison information center; difference between drug information center & poison information center.