Question: what are the different types of chemicals?
Answer: Anticholinergic Agents (Anticholinergic Toxidrome) ...  Biotoxins. Blister Agents/Vesicants (Irritant/Corrosive - Topical Toxidrome) ...  Blood/Systemic Agents (Knockdown Toxidrome) ...  Caustics (Acids) (Irritant/Corrosive - Topical/Inhalation/Ingestion Toxidrome)