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Category Names
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- Abortifacient Agents (17)
- Abortifacient Agents, Nonsteroidal (13)
- Abortifacient Agents, Steroidal (3)
- Acaricides (7)
- Acetaldehyde Dehydrogenase Inhibitors (1)
- Acetylcholine Release Inhibitors (3)
- Acetylcholinesterase Inhibitors (0) see Cholinesterase Inhibitors
- Acid Cysteine Proteinase Inhibitors (0) see Cysteine Proteinase Inhibitors
- Acid Sensing Ion Channel Blockers (2)
- Action Diuretics (1)
- Adenosine A1 Receptor Antagonists (3)
- Adenosine A2 Receptor Agonists (4)
- Adenosine A2 Receptor Antagonists (9)
- Adenosine A2A Receptor Agonists (0) see Adenosine A2 Receptor Agonists
- Adenosine A2A Receptor Antagonists (0) see Adenosine A2 Receptor Antagonists
- Adenosine A2B Receptor Agonists (0) see Adenosine A2 Receptor Agonists
- Adenosine A2B Receptor Antagonists (0) see Adenosine A2 Receptor Antagonists
- Adenosine A3 Receptor Antagonists (1)
- Adenosine Deaminase Inhibitors (8)
- Adenosine Diphosphate Receptor Antagonists (0) see Purinergic P2Y Receptor Antagonists
- Adenylyl Cyclase Inhibitors (3)
- Adhesives (2)
- Adjuvants, Anesthesia (21)
- Adjuvants, Immunologic (129)
- Adjuvants, Pharmaceutic (2)
- Adrenal Cortex Hormones (53)
- Adrenal Steroid Synthesis Inhibitors (0) see Steroid Synthesis Inhibitors
- Adrenergic Agents (281)
- Adrenergic Agonists (109)
- Adrenergic alpha-1 Receptor Agonists (8)
- Adrenergic alpha-1 Receptor Antagonists (18)
- Adrenergic alpha-2 Receptor Agonists (21)
- Adrenergic alpha-2 Receptor Antagonists (6)
- Adrenergic alpha-Agonists (53)
- Adrenergic alpha-Antagonists (67)
- Adrenergic Antagonists (134)
- Adrenergic beta-1 Receptor Agonists (6)
- Adrenergic beta-1 Receptor Antagonists (10)
- Adrenergic beta-2 Receptor Agonists (17)
- Adrenergic beta-2 Receptor Antagonists (1)
- Adrenergic beta-3 Receptor Agonists (5)
- Adrenergic beta-3 Receptor Antagonists (1)
- Adrenergic beta-Agonists (61)
- Adrenergic beta-Antagonists (75)
- Adrenergic Effect (0) see Adrenergic Agents
- Adrenergic Neurohumor Depleters (0) see Adrenergic Agents
- Adrenergic Neuron Agents (0) see Adrenergic Agents
- Adrenergic Release Inhibitors (0) see Adrenergic Agents
- Adrenergic Synthesis Inhibitors (0) see Adrenergic Agents
- Adrenergic Uptake Inhibitors (32)
- Aerosol Propellants (1)
- Affinity Labels (40)
- Agglutinins (1)
- Aggregation Inhibitors (1)
- Agrochemicals (7)
- Air Pollutants (15)
- Air Pollutants, Environmental (0) see Air Pollutants
- Air Pollutants, Occupational (4)
- Air Pollutants, Radioactive (1)
- Alcohol Deterrents (6)
- Aldosterone Antagonists (2) see Mineralocorticoid Receptor Antagonists
- Alkylating Agents (73)
- alpha-Cysteine Protease Inhibitors (0) see Cysteine Proteinase Inhibitors
- alpha-Glucosidase Inhibitors (0) see Glycoside Hydrolase Inhibitors
- Alpha-Neurotoxins (0) see Neurotoxins
- Amebicides (13)
- Amines, Sympathomimetic (0) see Sympathomimetics
- Amphiphilic Agents (0) see Surface-Active Agents
- Ampholytes (0) see Buffers
- Amylin Mimetics (0) see Amylin Receptor Agonists
- Amylin Receptor Agonists (1)
- Anabolic Agents (27)
- Anabolic Effect (0) see Anabolic Agents
- Analeptics (0) see Central Nervous System Stimulants
- Analgesics (443)
- Analgesics, Anti-Inflammatory (0) see Anti-Inflammatory Agents, Non-Steroidal
- Analgesics, Non-Narcotic (295)
- Analgesics, Opioid (75)
- Androgen Antagonists (18)
- Androgen Effect (0) see Androgens
- Androgen Receptor Antagonists (2)
- Androgen Synthesis Inhibitors (0) see Steroid Synthesis Inhibitors
- Androgens (12)
- Anesthetic Effect (0) see Anesthetics
- Anesthetic Gases (0) see Anesthetics, Inhalation
- Anesthetics (91)
- Anesthetics, Combined (4)
- Anesthetics, Dissociative (4)
- Anesthetics, General (30)
- Anesthetics, Inhalation (11)
- Anesthetics, Intravenous (19)
- Anesthetics, Local (38)
- Anesthetics, Topical (0) see Anesthetics, Local
- Angiogenesis Factor Inhibitors (0) see Angiogenesis Inhibitors
- Angiogenesis Inducing Agents (2)
- Angiogenesis Inhibitors (31)
- Angiogenesis Modulating Agents (31)
- Angiotensin II Type 1 Receptor Blockers (22)
- Angiotensin II Type 2 Receptor Blockers (2)
- Angiotensin Receptor Antagonists (27)
- Angiotensin-Converting Enzyme Inhibitors (51)
- Anion Exchange Resins (3)
- Antacids (21)
- Anthelmintics (107)
- Anti-Allergic Agents (49)
- Anti-Androgen Effect (0) see Androgen Antagonists
- Anti-Angiogenesis Effect (0) see Angiogenesis Inhibitors
- Anti-Anxiety Agents (91)
- Anti-Anxiety Effect (0) see Anti-Anxiety Agents
- Anti-Arrhythmia Agents (153)
- Anti-Arrhythmia AgentsE (1)
- Anti-Asthmatic Agents (101)
- Anti-Bacterial Agents (471)
- Anti-Dyskinesia Agents (55)
- Anti-HIV Agents (87)
- Anti-Infective Agents (1267)
- Anti-Infective Agents, Local (77)
- Anti-Infective Agents, Urinary (33)
- Anti-Inflammatory Agents (349)
- Anti-Inflammatory Agents, Non-Steroidal (258)
- Anti-Mycobacterial Agents (0) see Anti-Bacterial Agents
- Anti-Obesity Agents (28)
- Anti-Retroviral Agents (102)
- Anti-Rheumatic Agents, Non-Steroidal (0) see Anti-Inflammatory Agents, Non-Steroidal
- Anti-Ulcer Agents (79)
- Antibiotics (0) see Anti-Bacterial Agents
- Antibiotics, Antifungal (10) see Antifungal Agents
- Antibiotics, Antineoplastic (102)
- Antibiotics, Antitubercular (11)
- Antibiotics, Cytotoxic (0) see Antibiotics, Antineoplastic
- Anticarcinogenic Agents (36)
- Anticarcinogenic Effect (0) see Anticarcinogenic Agents
- Anticestodal Agents (5)
- Anticholesteremic Agents (59)
- Anticholinergic Agents (0) see Cholinergic Antagonists
- Anticoagulants (85)
- Anticoccidial Agents (0) see Coccidiostats
- Anticonvulsants (130)
- Antidepressive Agents (105)
- Antidepressive Agents, Second-Generation (21)
- Antidepressive Agents, Tricyclic (27)
- Antidiabetics (0) see Hypoglycemic Agents
- Antidiarrheals (18)
- Antidiuretic Agents (5)
- Antidiuretic Effect (0) see Antidiuretic Agents
- Antidiuretic Hormone Receptor Antagonists (7)
- Antidotes (35)
- Antiemetic Effect (0) see Antiemetics
- Antiemetics (56)
- Antiepileptic Agents (0) see Anticonvulsants
- Antifibrillatory Agents (0) see Anti-Arrhythmia Agents
- Antifibrinolytic Agents (7)
- Antiflatulents (0) see Antifoaming Agents
- Antifoaming Agents (2)
- Antifungal Agents (153)
- Antihemorrhagics (0) see Hemostatics
- Antihistamines, Classical (0) see Histamine H1 Antagonists
- Antihypertensive Agents (270)
- Antihyperuricemics (0) see Gout Suppressants
- Antilipemic Agents (19)
- Antimalarials (74)
- Antimanic Agents (6)
- Antimanic Effect (0) see Antimanic Agents
- Antimetabolites (193)
- Antimetabolites, Antineoplastic (55)
- Antimitotic Agents (37)
- Antimutagenic Agents (15)
- Antimutagenic Effect (0) see Antimutagenic Agents
- Antinematodal Agents (42)
- Antineoplastic Agents (976)
- Antineoplastic Agents, Alkylating (47)
- Antineoplastic Agents, Hormonal (36)
- Antineoplastic Agents, Immunological (39)
- Antineoplastic Agents, Phytogenic (68)
- Antinociceptive Agents (0) see Analgesics
- Antioxidant Effect (0) see Antioxidants
- Antioxidants (165)
- Antiparasitic Agents (270)
- Antiparkinson Agents (50)
- Antiperistaltic Agents (0) see Antidiarrheals
- Antiperspirants (2)
- Antiplatelet Agents (0) see Platelet Aggregation Inhibitors
- Antiplatyhelmintic Agents (30)
- Antiprotozoal Agents (175)
- Antipruritics (15)
- Antipsychotic Agents (114)
- Antipsychotic Effect (0) see Antipsychotic Agents
- Antipyretic Effect (0) see Antipyretics
- Antipyretics (5)
- Antiresorptive Agents (0) see Bone Density Conservation Agents
- Antirheumatic Agents (314)
- Antirheumatic Drugs, Disease-Modifying (0) see Antirheumatic Agents
- Antischistosomal Agents (0) see Schistosomicides
- Antiseptics, Urinary (0) see Anti-Infective Agents, Urinary
- Antisickling Agents (6)
- Antispasmodic Effect (0) see Parasympatholytics
- Antispasmodics (0) see Parasympatholytics
- Antispermatogenic Agents (9)
- Antispermatogenic Effect (0) see Antispermatogenic Agents
- Antisyphilitic Agents (0) see Antitreponemal Agents
- Antithrombins (29)
- Antithrombotic Agents (0) see Fibrinolytic Agents
- Antithyroid Agents (10)
- Antithyroid Effect (0) see Antithyroid Agents
- Antitreponemal Agents (1)
- Antitrichomonal Agents (6)
- Antitubercular Agents (33)
- Antitussive Agents (33)
- Antiviral Agents (277)
- Any of several BRASSICA species that are commonly called mustard. Brassica alba is white mustard, B. juncea is brown or Chinese mustard, and B. nigra is black, brown, or red mustard (1)
- Appetite Depressants (16)
- Appetite Stimulants (2)
- Arachidonate 12-Lipoxygenase Inhibitors (0) see Lipoxygenase Inhibitors
- Arachidonate 15-Lipoxygenase Inhibitors (0) see Lipoxygenase Inhibitors
- Arachidonate 5-Lipoxygenase Inhibitors (0) see Lipoxygenase Inhibitors
- Aromatase Inhibitors (10)
- Aromatic Amino Acid Decarboxylase Inhibitors (5)
- Artificial Sweeteners (0) see Sweetening Agents
- Aspirin-Like Agents (0) see Anti-Inflammatory Agents, Non-Steroidal
- Astringent Effect (0) see Astringents
- Astringents (4)
- Autonomic Agents (316)
- Aversive Agents (1)
