Each entry (monograph) follows a standardized format to ensure rapid data retrieval:
: Vitamins, hormones, proteins, and plant extracts. The Merck Index: An Encyclopedia of Chemicals, ...
: Approved and investigational drugs, including dosages and pharmacological profiles. Each entry (monograph) follows a standardized format to
: Hazard classifications, handling precautions, and toxicity data. History and Publishing and toxicity data. History and Publishing