Drug categories H

Drug Category Names, Results, and Descriptions

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• Hematologic Agents  (321) • Drugs that act on blood and blood-forming organs and those that affect the hemostatic system.

• Hemocompatible Materials  (0) see Biocompatible Materials

• Hemolytic Agents  (1) • Substances that are toxic to blood in general, including the clotting mechanism; hematotoxins may refer to the hematopoietic system.

• Hemostatics  (42) • Agents acting to arrest the flow of blood. Absorbable hemostatics arrest bleeding either by the formation of an artificial clot or by providing a mechanical matrix that facilitates clotting when applied directly to the bleeding surface. These agents function more at the capillary level and are not effective at stemming arterial or venous bleeding under any significant intravascular pressure.

• Hemotoxins  (0) see Hemolytic Agents

• Heparin Antagonists  (5) • Coagulant substances inhibiting the anticoagulant action of heparin.

• Herbicides  (100) • Pesticides used to destroy unwanted vegetation, especially various types of weeds, grasses (POACEAE), and woody plants. Some plants develop HERBICIDE RESISTANCE.

• High Ceiling Diuretics  (0) see Sodium Potassium Chloride Symporter Inhibitors

• Histamine  (1)

• Histamine Agents  (132) • Drugs used for their actions on histaminergic systems. Included are drugs that act at histamine receptors, affect the life cycle of histamine, or affect the state of histaminergic cells.

• Histamine Agonists  (10) • Drugs that bind to and activate histamine receptors. Although they have been suggested for a variety of clinical applications histamine agonists have so far been more widely used in research than therapeutically.

• Histamine Antagonists  (120) • Drugs that bind to but do not activate histamine receptors, thereby blocking the actions of histamine or histamine agonists. Classical antihistaminics block the histamine H1 receptors only.

• Histamine Effect  (0) see Histamine Agents

• Histamine H1 Agonists  (0) see Histamine Agonists

• Histamine H1 Antagonists  (73) • Drugs that selectively bind to but do not activate histamine H1 receptors, thereby blocking the actions of endogenous histamine. Included here are the classical antihistaminics that antagonize or prevent the action of histamine mainly in immediate hypersensitivity. They act in the bronchi, capillaries, and some other smooth muscles, and are used to prevent or allay motion sickness, seasonal rhinitis, and allergic dermatitis and to induce somnolence. The effects of blocking central nervous system H1 receptors are not as well understood.

• Histamine H1 Antagonists, Non-Sedating  (17) • A class of non-sedating drugs that bind to but do not activate histamine receptors (DRUG INVERSE AGONISM), thereby blocking the actions of histamine or histamine agonists. These antihistamines represent a heterogenous group of compounds with differing chemical structures, adverse effects, distribution, and metabolism. Compared to the early (first generation) antihistamines, these non-sedating antihistamines have greater receptor specificity, lower penetration of BLOOD-BRAIN BARRIER, and are less likely to cause drowsiness or psychomotor impairment.

• Histamine H2 Agonists  (0) see Histamine Agonists

• Histamine H2 Antagonists  (18) • Drugs that selectively bind to but do not activate histamine H2 receptors, thereby blocking the actions of histamine. Their clinically most important action is the inhibition of acid secretion in the treatment of gastrointestinal ulcers. Smooth muscle may also be affected. Some drugs in this class have strong effects in the central nervous system, but these actions are not well understood.

• Histamine H3 Agonists  (0) see Histamine Agonists

• Histamine H3 Antagonists  (5) • Drugs that selectively bind to but do not activate HISTAMINE H3 RECEPTORS. They have been used to correct SLEEP WAKE DISORDERS and MEMORY DISORDERS.

• Histone Deacetylase Inhibitors  (21) • Compounds that inhibit HISTONE DEACETYLASES. This class of drugs may influence gene expression by increasing the level of acetylated HISTONES in specific CHROMATIN domains.

• HIV Fusion Inhibitors  (3)

• HIV Integrase Inhibitors  (4) • Inhibitors of HIV INTEGRASE, an enzyme required for integration of viral DNA into cellular DNA.

• HIV Protease Inhibitors  (16) • Inhibitors of HIV PROTEASE, an enzyme required for production of proteins needed for viral assembly.

• Hormone Antagonists  (177) • Chemical substances which inhibit the function of the endocrine glands, the biosynthesis of their secreted hormones, or the action of hormones upon their specific sites.

• Hormone Receptor Agonists  (0) see Hormones

• Hormones  (193) • Chemical substances having a specific regulatory effect on the activity of a certain organ or organs. The term was originally applied to substances secreted by various ENDOCRINE GLANDS and transported in the bloodstream to the target organs. It is sometimes extended to include those substances that are not produced by the endocrine glands but that have similar effects.

• Hormones, Hormone Substitutes, and Hormone Antagonists  (360)

• Humectants  (0) see Hygroscopic Agents

• Hydrocholeretics  (0) see Cholagogues and Choleretics

• Hydroxymethylglutaryl-CoA Reductase Inhibitors  (24) • Compounds that inhibit HMG-CoA reductases. They have been shown to directly lower cholesterol synthesis.

• Hygroscopic Agents  (2) • Materials that readily absorb moisture from their surroundings.

• Hypnotic Effect  (0) see Hypnotics and Sedatives

• Hypnotics  (0) see Hypnotics and Sedatives

• Hypnotics and Sedatives  (70) • Drugs used to induce drowsiness or sleep or to reduce psychological excitement or anxiety.

• Hypocholesteremic Agents  (0) see Anticholesteremic Agents

• Hypoglycemic Agents  (102) • Substances which lower blood glucose levels.

• Hypoglycemic Effect  (0) see Hypoglycemic Agents

• Hypolipidemic Agents  (112) • Substances that lower the levels of certain LIPIDS in the BLOOD. They are used to treat HYPERLIPIDEMIAS.

Drug Category Names, Results, and Descriptions

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Comprehensive list of medications or pharmaceutical drugs used in the United States with their NDC or national drug code, brand name, dosage, forms of administration etc. sorted alphabetically.

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External links

The following is the collection of detailed information and links to the National Institute of Health (NIH) comprehensive drug information portal and other reliable sources of information. Select the drug name below to show drug description, drug classification, other common drug names, and information on the reasons why prescribed, how medication should be used, and what possible side effects could occur.

Drug names

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