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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 (9)
- Adenosine Diphosphate Receptor Antagonists (0) see Purinergic P2Y Receptor Antagonists
- Adenylyl Cyclase Inhibitors (3)
- Adhesives (2)
- Adjuvants, Anesthesia (21)
- Adjuvants, Immunologic (130)
- Adjuvants, Pharmaceutic (2)
- Adrenal Cortex Hormones (29)
- 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 (77)
- 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 (446)
- Analgesics, Anti-Inflammatory (0) see Anti-Inflammatory Agents, Non-Steroidal
- Analgesics, Non-Narcotic (296)
- Analgesics, Opioid (76)
- 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 (92)
- Anesthetics, Combined (4)
- Anesthetics, Dissociative (5)
- Anesthetics, General (29)
- Anesthetics, Inhalation (11)
- Anesthetics, Intravenous (20)
- Anesthetics, Local (38)
- Anesthetics, Topical (0) see Anesthetics, Local
- Angiogenesis Factor Inhibitors (0) see Angiogenesis Inhibitors
- Angiogenesis Inducing Agents (2)
- Angiogenesis Inhibitors (33)
- Angiogenesis Modulating Agents (23)
- 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 (108)
- 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 (154)
- Anti-Arrhythmia AgentsE (1)
- Anti-Asthmatic Agents (101)
- Anti-Bacterial Agents (479)
- Anti-Dyskinesia Agents (55)
- Anti-HIV Agents (101)
- Anti-Infective Agents (1341)
- Anti-Infective Agents, Local (77)
- Anti-Infective Agents, Urinary (33)
- Anti-Inflammatory Agents (357)
- Anti-Inflammatory Agents, Non-Steroidal (259)
- Anti-Mycobacterial Agents (0) see Anti-Bacterial Agents
- Anti-Obesity Agents (29)
- Anti-Retroviral Agents (120)
- Anti-Rheumatic Agents, Non-Steroidal (0) see Anti-Inflammatory Agents, Non-Steroidal
- Anti-Ulcer Agents (81)
- Antibiotics (0) see Anti-Bacterial Agents
- Antibiotics, Antifungal (10) see Antifungal Agents
- Antibiotics, Antineoplastic (110)
- Antibiotics, Antitubercular (11)
- Antibiotics, Cytotoxic (0) see Antibiotics, Antineoplastic
- Anticarcinogenic Agents (37)
- Anticarcinogenic Effect (0) see Anticarcinogenic Agents
- Anticestodal Agents (5)
- Anticholesteremic Agents (60)
- Anticholinergic Agents (0) see Cholinergic Antagonists
- Anticoagulants (86)
- Anticoccidial Agents (0) see Coccidiostats
- Anticonvulsants (133)
- Antidepressive Agents (106)
- 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 (36)
- Antiemetic Effect (0) see Antiemetics
- Antiemetics (56)
- Antiepileptic Agents (0) see Anticonvulsants
- Antifibrillatory Agents (0) see Anti-Arrhythmia Agents
- Antifibrinolytic Agents (8)
- Antiflatulents (0) see Antifoaming Agents
- Antifoaming Agents (2)
- Antifungal Agents (155)
- Antihemorrhagics (0) see Hemostatics
- Antihistamines, Classical (0) see Histamine H1 Antagonists
- Antihypertensive Agents (271)
- Antihyperuricemics (0) see Gout Suppressants
- Antilipemic Agents (16)
- Antimalarials (76)
- Antimanic Agents (6)
- Antimanic Effect (0) see Antimanic Agents
- Antimetabolites (195)
- Antimetabolites, Antineoplastic (55)
- Antimitotic Agents (38)
- Antimutagenic Agents (15)
- Antimutagenic Effect (0) see Antimutagenic Agents
- Antinematodal Agents (43)
- Antineoplastic Agents (1012)
- Antineoplastic Agents, Alkylating (53)
- Antineoplastic Agents, Hormonal (37)
- Antineoplastic Agents, Immunological (45)
- Antineoplastic Agents, Phytogenic (69)
- Antinociceptive Agents (0) see Analgesics
- Antioxidant Effect (0) see Antioxidants
- Antioxidants (167)
- Antiparasitic Agents (274)
- Antiparkinson Agents (50)
- Antiperistaltic Agents (0) see Antidiarrheals
- Antiperspirants (2)
- Antiplatelet Agents (0) see Platelet Aggregation Inhibitors
- Antiplatyhelmintic Agents (30)
- Antiprotozoal Agents (178)
- 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 (316)
- 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 (10)
- 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 (34)
- Antitussive Agents (35)
- Antiviral (COVID-19) (11)
- Antiviral Agents (338)
- 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 (252)
- Aversive Agents (1)
