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Category Names
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- Hallucinogens (19)
- Hazardous Chemicals (0) see Hazardous Substances
- Hazardous Substances (1)
- Hemagglutinins (1)
- Hematinics (19)
- Hematologic Agents (321)
- Hemocompatible Materials (0) see Biocompatible Materials
- Hemolytic Agents (1)
- Hemostatics (42)
- Hemotoxins (0) see Hemolytic Agents
- Heparin Antagonists (5)
- Herbicides (100)
- High Ceiling Diuretics (0) see Sodium Potassium Chloride Symporter Inhibitors
- Histamine (1)
- Histamine Agents (132)
- Histamine Agonists (10)
- Histamine Antagonists (120)
- Histamine Effect (0) see Histamine Agents
- Histamine H1 Agonists (0) see Histamine Agonists
- Histamine H1 Antagonists (73)
- Histamine H1 Antagonists, Non-Sedating (17)
- Histamine H2 Agonists (0) see Histamine Agonists
- Histamine H2 Antagonists (18)
- Histamine H3 Agonists (0) see Histamine Agonists
- Histamine H3 Antagonists (5)
- Histone Deacetylase Inhibitors (21)
- HIV Fusion Inhibitors (3)
- HIV Integrase Inhibitors (4)
- HIV Protease Inhibitors (16)
- Hormone Antagonists (177)
- Hormone Receptor Agonists (0) see Hormones
- Hormones (192)
- Hormones, Hormone Substitutes, and Hormone Antagonists (359)
- Humectants (0) see Hygroscopic Agents
- Hydrocholeretics (0) see Cholagogues and Choleretics
- Hydroxymethylglutaryl-CoA Reductase Inhibitors (24)
- Hygroscopic Agents (2)
- Hypnotic Effect (0) see Hypnotics and Sedatives
- Hypnotics (0) see Hypnotics and Sedatives
- Hypnotics and Sedatives (70)
- Hypocholesteremic Agents (0) see Anticholesteremic Agents
- Hypoglycemic Agents (102)
- Hypoglycemic Effect (0) see Hypoglycemic Agents
- Hypolipidemic Agents (112)
