The Agent is the person or entity that performs the action described by a Verb. It is most commonly used in the Passive when the agent is used with 'by': Eg.: The politician's career wa [..]

Also known as bots, droids or intelligent agents, these agents are autonomous software programs that respond to their environment and act on the behalf of humans to accomplish a system’s target function. When multiple agents are used together in a system, they interact with one another to achieve the goals of the overall system.

Agents are registered persons who are able to create certificates on behalf of owners of eligible small-scale installations

Drugs that act on Adrenergic Receptors or Affect the Life Cycle of adrenergic transmitters. Included here are Adrenergic Agonists and antagonists and agents that Affect the synthesis, storage, uptake, [..]

Highly reactive chemicals that introduce alkyl radicals into biologically active molecules and thereby prevent their proper functioning. Many are used as Antineoplastic Agents, but most are very toxic [..]

Drugs that bind to but do not activate alpha-Adrenergic Receptors thereby blocking the actions of endogenous or exogenous Adrenergic Agonists. Adrenergic alpha-antagonists are used in the treatment of [..]

These compounds stimulate anabolism and inhibit catabolism. They stimulate the development of Muscle mass, strength, and Power.

Compounds capable of relieving Pain without the Loss of Consciousness.

Compounds that interact with Androgen Receptors in target Tissues to bring about the effects similar to those of Testosterone. Depending on the target Tissues, androgenic effects can be on Sex Differe [..]

Agents that are capable of inducing a total or partial loss of Sensation, especially tactile Sensation and Pain. They may act to induce general Anesthesia, in which an Unconscious State is achieved, o [..]

Agents which Affect Cell Division and the Mitotic Spindle Apparatus resulting in the loss or gain of whole Chromosomes, thereby inducing an Aneuploidy.

Agents that induce or stimulate Physiologic Angiogenesis or Pathologic Angiogenesis.

Agents that are used to suppress Appetite.

Drugs that bind to but do not activate Adrenergic Receptors. Adrenergic antagonists block the actions of the endogenous adrenergic transmitters Epinephrine and Norepinephrine.

Agents that are used to treat allergic reactions. Most of these Drugs act by preventing the release of inflammatory mediators or inhibiting the actions of released mediators on their target Cells. (Fr [..]

Agents and endogenous substances that antagonize or inhibit the development of new Blood Vessels.

Agents used for the treatment or prevention of Cardiac Arrhythmias. They may Affect the polarization-repolarization phase of the Action Potential, its excitability or refractoriness, or impulse conduc [..]

Drugs that are used to treat Asthma.

Substances that reduce the Growth or Reproduction of Bacteria.

Agents that reduce the frequency or rate of spontaneous or induced Tumors independently of the mechanism involved.

Agents used to treat Tapeworm infestations in man or Animals.

Substances used to lower Plasma Cholesterol levels.

Drugs that inhibit cholinesterases. The Neurotransmitter Acetylcholine is rapidly hydrolyzed, and thereby inactivated, by cholinesterases. When cholinesterases are inhibited, the action of endogenousl [..]

Agents that prevent clotting.

Drugs used to prevent Seizures or reduce their severity.

Mood-stimulating Drugs used primarily in the treatment of Affective Disorders and related conditions. Several Monoamine Oxidase Inhibitors are useful as antidepressants apparently as a long-term conse [..]

Miscellaneous agents found useful in the symptomatic treatment of Diarrhea. They have no effect on the agent(s) that cause Diarrhea, but merely alleviate the condition.

Agents that reduce the excretion of URINE, most notably the octapeptide Vasopressins.

Drugs used to prevent Nausea or Vomiting.

Agents that prevent Fibrinolysis or lysis of a Blood clot or thrombus. Several endogenous antiplasmins are known. The Drugs are used to control massive Hemorrhage and in other coagulation disorders.

Agents used to prevent the formation of foam or to treat Flatulence or bloat.

Substances that destroy Fungi by suppressing their ability to grow or reproduce. They differ from Fungicides, Industrial because they defend against Fungi present in Human or Animal Tissues.

Agents that increase Uric Acid excretion by the Kidney (Uricosuric Agents), decrease Uric Acid production (antihyperuricemics), or alleviate the Pain and Inflammation of acute attacks of Gout.

Agents used to treat AIDS and/or stop the spread of the HIV Infection. These do not include Drugs used to treat symptoms or Opportunistic Infections associated with AIDS.

Drugs used in the treatment of acute or chronic vascular Hypertension regardless of pharmacological mechanism. Among the antihypertensive agents are Diuretics; (especially Diuretics, Thiazide); Adrene [..]

Substances that prevent infectious agents or organisms from spreading or kill infectious agents in order to prevent the spread of Infection.

Substances that reduce or suppress Inflammation.

Agents used in the treatment of Malaria. They are usually classified on the basis of their action against plasmodia at different stages in their Life Cycle in the Human. (From AMA, Drug Evaluations An [..]

Agents that are used to treat Bipolar Disorders or mania associated with other Affective Disorders.

Generically, any agent that destroys microbes. However, usage of the term is increasingly being confined to agents that prevent or reduce the transmission of Sexually Transmitted Diseases.

Agents that arrest Cells in Mitosis, most notably Tubulin Modulators.

Drugs that bind to but do not activate Muscarinic Receptors, thereby blocking the actions of endogenous Acetylcholine or exogenous agonists. Muscarinic antagonists have widespread effects including ac [..]

Agents that reduce the frequency or rate of spontaneous or induced Mutations independently of the mechanism involved.

Substances used in the treatment or control of nematode infestations. They are used also in veterinary practice.

Antineoplastic Agents that are used to treat Hormone-sensitive Tumors. Hormone-sensitive Tumors may be Hormone-dependent, Hormone-responsive, or both. A Hormone-dependent Tumor regresses on removal of [..]

Agents that increase Energy Expenditure and Weight Loss by neural and chemical Regulation. Beta-Adrenergic Agents and serotoninergic Drugs have been experimentally used in Patients with non-Insulin de [..]

Drugs used to treat or prevent parasitic Infections.

Agents used in the treatment of Parkinson's Disease. The most commonly used Drugs act on the dopaminergic system in the striatum and Basal Ganglia or are centrally acting Muscarinic Antagonists.

Agents used to treat Cestode, trematode, or other Flatworm infestations in man or Animals.

Substances that are destructive to protozoans.

Agents, usually topical, that relieve Itching (Pruritus).

Drugs that are used to reduce Body Temperature in Fever.

Agents used to treat Retroviridae Infections.

Drugs that are used to treat Rheumatoid Arthritis.

Drugs that bind to but do not activate Serotonin Receptors, thereby blocking the actions of Serotonin or Serotonin Receptor Agonists.

Agents used to prevent or reverse the pathological events leading to sickling of Erythrocytes in sickle Cell conditions.

Agents, either mechanical or chemical, which destroy Spermatozoa in the Male Genitalia and block Spermatogenesis.

Chemical compounds applied to materials to reduce their Retention of an electrostatic charge.

Agents that are used to treat Hyperthyroidism by reducing the excessive production of Thyroid Hormones.

Agents used to treat Infections with Bacteria of the genus Treponema. This includes Syphilis & Yaws.

Agents used to treat Trichomonas Infections.

Agents that suppress Cough. They act centrally on the medullary Cough center. Expectorants, also used in the treatment of Cough, act locally.

Various agents with different action mechanisms used to treat or ameliorate Peptic Ulcer or irritation of the Gastrointestinal Tract. This has included Antibiotics to treat Helicobacter Infections; Hi [..]

Agents used in the prophylaxis or therapy of Virus Diseases. Some of the ways they may act include preventing viral replication by inhibiting Viral DNA polymerase; binding to specific Cell-surface rec [..]

Agents affecting the function of, or mimicking the actions of, the Autonomic Nervous System and thereby having an effect on such processes as Respiration, circulation, Digestion, Body Temperature Regu [..]

Substances that kill Bacteria.

Drugs that bind to but do not activate beta-Adrenergic Receptors thereby blocking the actions of beta-Adrenergic Agonists. Adrenergic beta-antagonists are used for treatment of Hypertension, Cardiac A [..]

Organisms or complex pharmaceutical substances, preparations, or agents of organic origin, usually obtained by biological methods or assay. Biological agents are differentiated from Biological Factors [..]

Organisms used strategically for their positive or adverse effect on the Physiology and/or Reproductive Health of other species.

Living organisms or their toxic products that are used to cause Disease or Death of Humans during war.

Agents causing the narrowing of the lumen of a Bronchus or Bronchiole.

Agents that cause an increase in the expansion of a Bronchus or bronchial tubes.

Small organic molecules that act as allosteric activators of the Calcium Sensing Receptor (CaSR) in the Parathyroid Glands and other Tissues. They lower the threshold for CaSR activation by extracellu [..]

Agents that have a damaging effect on the Heart. Such damage can occur from Alkylating Agents; Free Radicals; or metabolites from Oxidative Stress and in some cases is countered by Cardiotonic Agents. [..]

Agents that Affect the rate or intensity of cardiac contraction, Blood Vessel diameter, or Blood Volume.

Substances that promote Dental Caries.

Substances that inhibit or arrest Dental Caries formation. (Boucher's Clinical Dental Terminology, 4th ed)

Compounds that disintegrate natural waxy exudates such as EAR WAX.

Chemicals that bind to and remove Ions from Solutions. Many chelating agents function through the formation of Coordination Complexes with Metals.

Chemicals that are used to cause the disturbance, Disease, or Death of Humans during war.

Substances that inhibit or prevent the proliferation of Neoplasms.

Any drug used for its actions on cholinergic systems. Included here are agonists and antagonists, Drugs that Affect the Life Cycle of Acetylcholine, and Drugs that Affect the Survival of Cholinergic N [..]

Drugs that bind to but do not activate Cholinergic Receptors, thereby blocking the actions of Acetylcholine or Cholinergic Agonists.

The use of two or more chemicals simultaneously or sequentially in the Drug Therapy of Neoplasms. The Drugs need not be in the same Dosage Form.

Compounds that negatively regulate the cascade process of Complement Activation. Uncontrolled Complement Activation and resulting Cell lysis is potentially dangerous for the host.

Chemical substances that prevent or reduce the Probability of CONCEPTION.

Substances used to allow enhanced visualization of Tissues.

Substances that provide protection against the harmful effects of Freezing Temperatures.

Cements that act through infiltration and Polymerization within the Dentinal matrix and are used for dental restoration. They can be Adhesive resins themselves, adhesion-promoting monomers, or Polymer [..]

Substances which reduce or eliminate dentinal sensitivity or the Pain associated with a source of stimulus (such as Touch, Heat, or Cold) at the orifice of exposed dentinal tubules causing the Movemen [..]

Drugs used to treat or prevent Skin disorders or for the routine care of Skin.

Any Drugs that are used for their effects on Dopamine Receptors, on the Life Cycle of Dopamine, or on the Survival of Dopaminergic Neurons.

Agents that cause Vomiting. They may act directly on the Gastrointestinal Tract, bringing about Emesis through local irritant effects, or indirectly, through their effects on the chemoreceptor trigger [..]

Surface-Active Agents that induce a dispersion of undissolved material throughout a liquid.

Oral Contraceptives which owe their effectiveness to hormonal preparations.

Compounds that interact with Estrogen Receptors in target Tissues to bring about the effects similar to those of Estradiol. Estrogens stimulate the female reproductive organs, and the development of s [..]

Drugs used for their actions on any aspect of Excitatory Amino Acid Neurotransmitter systems. Included are Drugs that act on Excitatory Amino Acid receptors, Affect the Life Cycle of Excitatory Amino [..]

Substances that are energetically unstable and can produce a sudden expansion of the material, called an explosion, which is accompanied by Heat, Pressure and Noise. Other things which have been descr [..]

Chemical substances or agents with contraceptive activity in females. Use for female Contraceptive Agents in general or for which there is no specific heading.

Compounds which increase the capacity to conceive in females.

Substances added to Foods and Medicine to improve the quality of Taste.

Agents that emit Light after excitation by Light. The wave length of the emitted Light is usually longer than that of the incident Light. Fluorochromes are substances that cause Fluorescence in other [..]

Natural or synthetic Dyes used as Coloring Agents in processed Foods.

Substances used for their pharmacological actions on GABAergic systems. GABAergic agents include agonists, antagonists, degradation or uptake inhibitors, depleters, precursors, and modulators of recep [..]

Agents having as their major action the interruption of Neural Transmission at Nicotinic Receptors on postganglionic autonomic Neurons. Because their actions are so broad, including blocking of sympat [..]

Drugs used for their effects on the gastrointestinal system, as to control gastric acidity, regulate Gastrointestinal Motility and Water flow, and improve Digestion.

Substances used for their pharmacological actions on glycinergic systems. Glycinergic agents include agonists, antagonists, degradation or uptake inhibitors, depleters, precursors, and modulators of r [..]

Dyes used as Cosmetics to change Hair Color either permanently or temporarily.

Chemicals that are used to oxidize pigments in Hair.

Drugs that act on Blood and Blood-forming organs and those that Affect the hemostatic system.

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.

Materials that readily absorb moisture from their surroundings.

Substances which lower Blood Glucose levels.

Substances that lower the levels of certain Lipids in the Blood. They are used to treat Hyperlipidemias.

Agents that suppress immune function by one of several mechanisms of action. Classical cytotoxic immunosuppressants act by inhibiting DNA synthesis. Others may act through activation of T-Cells or by [..]

Drugs used to increase Fertility or to treat Infertility.

Agents that are capable of inserting themselves between the successive bases in DNA, thus kinking, uncoiling or otherwise deforming it and therefore preventing its proper functioning. They are used in [..]

Organic Chemicals that form two or more coordination links with an Iron ion. Once coordination has occurred, the complex formed is called a chelate. The Iron-binding porphyrin group of Hemoglobin is a [..]

Such mixtures of amphoteric Electrolytes or Buffers that provide a continuous range of pH in an electric field; used for separating Proteins by their Isoelectric Points, i.e., by Isoelectric Focusing.

Substances that suppress Mycobacterium leprae, ameliorate the clinical manifestations of Leprosy, and/or reduce the Incidence and severity of leprous reactions.

Substances that alter the Metabolism of Lipids.

Endogenous factors or Drugs that increase the transport and Metabolism of Lipids including the synthesis of Lipoproteins by the LIVER and their uptake by extrahepatic Tissues.

Compounds that provide Lubrication between surfaces in order to reduce Friction. They are typically Lipids, and include lipophilic lotions, but not EYEDROPS which are aqueous, nor Surface-Active Agent [..]

Compound such as Luminescent Proteins that cause or emit Light (Physical Luminescence).

Chemical compounds causing Luteolysis or degeneration.

Chemical substances or agents with contraceptive activity in males. Use for male Contraceptive Agents in general or for which there is no specific heading.

Compounds which increase the capacity of the male to induce conception.

Chemical compounds that induce Menstruation either through direct action on the reproductive organs or through indirect action by relieving another condition of which Amenorrhea is a secondary result. [..]

Agents that alleviate Anxiety, tension, and Anxiety Disorders, promote sedation, and have a calming effect without affecting clarity of Consciousness or neurologic conditions. Adrenergic beta-Antagoni [..]

Drugs used in the treatment of Movement Disorders. Most of these act centrally on dopaminergic or cholinergic systems. Among the most important clinically are those used for the treatment of Parkinson [..]

Endogenous or exogenous chemicals that regulate the Water-Electrolyte Balance in the body. They consist of Peptides and non-peptide compounds.

Agents that control agitated psychotic Behavior, alleviate acute psychotic states, reduce psychotic symptoms, and exert a quieting effect. They are used in Schizophrenia; Senile Dementia; transient Ps [..]

Drugs used for their actions on Skeletal Muscle. Included are agents that act directly on Skeletal Muscle, those that alter neuromuscular transmission (Neuromuscular Blocking Agents), and Drugs that a [..]

Drugs that interrupt transmission of nerve impulses at the skeletal Neuromuscular Junction. They can be of two types, competitive, stabilizing blockers (Neuromuscular Nondepolarizing Agents) or noncom [..]

Drugs that interrupt transmission at the skeletal Neuromuscular Junction by causing sustained depolarization of the Motor End Plate. These agents are primarily used as adjuvants in surgical Anesthesia [..]

Drugs that interrupt transmission at the skeletal Neuromuscular Junction without causing depolarization of the Motor End Plate. They prevent Acetylcholine from triggering Muscle Contraction and are us [..]

Drugs intended to prevent damage to the Brain or spinal cord from Ischemia, Stroke, convulsions, or Trauma. Some must be administered before the event, but others may be effective for some Time after. [..]

Non-steroidal chemical compounds with abortifacient activity.

Anti-Inflammatory Agents that are not Steroids. In addition to anti-inflammatory actions, they have analgesic, antipyretic, and Platelet-inhibitory actions. They are used primarily in the treatment of [..]

Drugs used to specifically facilitate Learning or Memory, particularly to prevent the cognitive deficits associated with Dementias. These Drugs act by a variety of mechanisms. While no potent nootropi [..]

Electron-accepting molecules in chemical reactions in which Electrons are transferred from one molecule to another (Oxidation-Reduction).

Drugs that stimulate contraction of the Myometrium. They are used to induce Labor, Obstetric at term, to prevent or control Postpartum or postabortion Hemorrhage, and to assess fetal status in high Ri [..]

Agents that inhibit the actions of the Parasympathetic Nervous System. The major group of Drugs used therapeutically for this purpose is the Muscarinic Antagonists.

Drugs that mimic the effects of Parasympathetic Nervous System activity. Included here are Drugs that directly stimulate Muscarinic Receptors and Drugs that potentiate cholinergic activity, usually by [..]

Drugs that are pharmacologically inactive but when exposed to ultraviolet Radiation or Sunlight are converted to their active metabolite to produce a beneficial reaction affecting the diseased Tissue. [..]

Agents obtained from higher Plants that have demonstrable cytostatic or antineoplastic activity.

Chemical substances that interrupt Pregnancy after implantation.

Synthetic or natural substances which are given to prevent a Disease or disorder or are used in the process of treating a Disease or injury due to a poisonous agent.

A loosely defined grouping of Drugs that have effects on psychological function. Here the psychotropic agents include the Antidepressive Agents, Hallucinogens, and Tranquilizing Agents (including the [..]

Drugs capable of inducing Illusions, Hallucinations, Delusions, paranoid ideations, and other alterations of mood and Thinking. Despite the name, the feature that distinguishes these agents from other [..]

Compounds that act on Purinergic Receptors or influence the synthesis, storage, uptake, Metabolism, or release of purinergic transmitters.

Drugs used to protect against Ionizing Radiation. They are usually of interest for use in Radiation therapy but have been considered for other, e.g. Military, purposes.

Drugs used to potentiate the effectiveness of Radiation therapy in destroying unwanted Cells.

Materials that add an Electron to an element or compound, that is, decrease the positiveness of its valence. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)

Drugs used for their effects on the Kidneys' Regulation of Body Fluid composition and volume. The most commonly used are the Diuretics. Also included are Drugs used for their antidiuretic and uri [..]

Substances used either in the prevention or facilitation of Pregnancy.

Drugs used for their effects on the Respiratory System.

A structurally and mechanistically diverse group of Drugs that are not tricyclics or Monoamine Oxidase Inhibitors. The most clinically important appear to act selectively on serotonergic systems, espe [..]

Drugs that act on neuronal Sensory Receptors resulting in an increase, decrease, or modification of afferent nerve activity. (From Smith and Reynard, Textbook of Pharmacology, 1991, p367)

Drugs used for their effects on serotonergic systems. Among these are Drugs that Affect Serotonin Receptors, the Life Cycle of Serotonin, and the Survival of Serotonergic Neurons.

Substances used to obtain a lighter Skin complexion or to treat Hyperpigmentation disorders.

Agents that soften, separate, and cause desquamation of the cornified Epithelium or horny layer of Skin. They are used to expose mycelia of infecting Fungi or to treat corns, Warts, and certain other [..]

Chemical substances with Sperm immobilizing activity used as topically administered vaginal Contraceptives.

Chemical substances which inhibit the process of Spermatozoa formation at either the first stage, in which Spermatogonia develop into Spermatocytes and then into Spermatids, or the second stage, in wh [..]

Chemical substances that are destructive to Spermatozoa used as topically administered vaginal Contraceptives.

Steroidal compounds with abortifacient activity.

Chemical or physical agents that protect the Skin from Sunburn and Erythema by absorbing or blocking ultraviolet Radiation.

Agents that modify Interfacial Tension of Water; usually substances that have one lipophilic and one hydrophilic group in the molecule; includes Soaps, Detergents, emulsifiers, dispersing and Wetting [..]

Substances that sweeten Food, Beverages, medications, etc., such as sugar, saccharine or other low-calorie synthetic products. (From Random House Unabridged Dictionary, 2d ed)

Drugs that inhibit the actions of the Sympathetic Nervous System by any mechanism. The most common of these are the Adrenergic Antagonists and Drugs that deplete Norepinephrine or reduce the release o [..]

Drugs that mimic the effects of stimulating postganglionic adrenergic sympathetic nerves. Included here are Drugs that directly stimulate Adrenergic Receptors and Drugs that act indirectly by provokin [..]

Drugs that prevent Preterm Labor and immature Birth by suppressing Uterine Contractions (Tocolysis). Agents used to delay premature uterine activity include Magnesium Sulfate, beta-mimetics, Oxytocin [..]

Chemicals that are used to oxidize pigments in Teeth and thus effect whitening.

Substances used on Humans and other Animals that destroy harmful microorganisms or inhibit their activity. They are distinguished from Disinfectants, which are used on inanimate objects.

A traditional grouping of Drugs said to have a soothing or calming effect on mood, thought, or Behavior. Included here are the Anti-Anxiety Agents (Minor tranquilizers), Antimanic Agents, and the Anti [..]

Substances that contain a fused three-ring moiety and are used in the treatment of Depression. These Drugs block the uptake of Norepinephrine and Serotonin into Axon Terminals and may block some subty [..]

Drugs used in the treatment of Tuberculosis. They are divided into two main classes: "first-line" agents, those with the greatest efficacy and acceptable degrees of toxicity used successfull [..]

Chemical agents that uncouple oxidation from Phosphorylation in the metabolic cycle so that ATP synthesis does not occur. Included here are those Ionophores that disrupt Electron Transfer by short-cir [..]

Gout Suppressants that act directly on the renal tubule to increase the excretion of Uric Acid, thus reducing its concentrations in Plasma.

Substances capable of killing agents causing Urinary Tract Infections or of preventing them from spreading.

Drugs used to cause dilation of the Blood Vessels.

Drugs used to cause Constriction of the Blood Vessels.

A surfactant that renders a surface wettable by Water or enhances the spreading of Water over the surface.

Chemicals that are used to oxidize pigments and thus effect whitening.

Someone who sells and services insurance policies on behalf of insurers. In many countries agents can only represent either one or a limited number of insurers as opposed to brokers who have a free re [..]

An insurance salesman linked specifically to a single insurance company.policies on behalf of insurers. Agents often obtain their clients from friends and relatives and therefore tend to have [..]

Someone who sells and services insurance policies on behalf of insurers. In many countries agents can only represent either one or a limited number of insurers as opposed to brokers who have a free rein. Agents often obtain their clients from friends and relatives and therefore tend to have a personal knowledge of the client.

are biological, physical, or chemical factors that contribute to the occurrence of a disease. Biological agents such as viruses and bacteria are often necessary causes for (infectious) diseases. Chemical agents such as poisons or allergens, or physical agents such as radiation, noise, or heat, are all non-biological agents that are frequently not n [..]

100%" align="justify">

agent|lang=en ----