Antihypertensive agents
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Antihypertensive therapy seeks to prevent the complications of high blood pressure, such as stroke and myocardial infarction. Antihypertensives are a class of drugs that are used in medicine and pharmacology to treat hypertension (high blood pressure). There are many classes … Read More

Antihistamines
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An antihistamine is a drug which serves to reduce or eliminate effects mediated by histamine, an endogenous chemical mediator released during allergic reactions, through action at the histamine receptor. Only agents where the main therapeutic effect is mediated by negative … Read More

Antidotes
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An antidote is a substance which can counteract a form of poisoning. Sometimes, the antidote for a particular toxin is manufactured by injecting the toxin into an animal in small doses and the resulting antibodies are extracted from the animals’ … Read More

Anticonvulsants
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Carbamazepine The anticonvulsants, sometimes also called antiepileptics, belong to a diverse group of pharmaceuticals used in prevention of the occurrence of epileptic seizures. The goal of an anticonvulsant is to suppress the rapid and excessive firing of neurons that start … Read More

Anticoagulants
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An anticoagulant is a substance that prevents coagulation; that is, it stops blood from clotting. A group of pharmaceuticals called anticoagulants can be used in vivo as a medication for thrombotic disorders. Some chemical compounds are used in medical equipment, … Read More

Anticholinergics
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An anticholinergic agent is a member of a class of pharmaceutical compounds which serve to reduce the effects mediated by acetylcholine in the central nervous system and peripheral nervous system. Anticholinergics are typically reversible competitive inhibitors of one of the … Read More

Antiasthmatic drugs – Asthma
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Bronchial Asthma Classifications and external resources ICD-10 J45. ICD-9 493 OMIM 600807 DiseasesDB 1006 MedlinePlus 000141 eMedicine med/177 emerg/43 MeSH C08.127.108 Asthma is a disease of the respiratory system in which the airways constrict, become inflamed, and are lined with … Read More

Antiarrhythmic agents
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Relative ion flow in cardiac myocyte in relation to features of the ECG. Antiarrhythmic agents are a group of pharmaceuticals that are used to suppress fast rhythms of the heart (cardiac arrhythmias), such as atrial fibrillation, atrial flutter, ventricular tachycardia, … Read More

Antianginals
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Micrograph of a coronary artery with the most common form of coronary artery disease An antianginal is any drug used in the treatment of angina pectoris, a symptom of ischaemic heart disease. Drugs used are nitrates such as nitroglycerin (glyceryl … Read More

Anti-inflammatory agents
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Anti-inflammatory refers to the property of a substance or treatment that reduces inflammation. Anti-inflammatory drugs make up one half of analgesics, remedying pain by reducing inflammation as opposed to opioids which affect the brain. Steroidal anti-inflammatory drugs Many steroids, specifically … Read More

Anti-diabetic drugs
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Overview of insulin secretion An anti-diabetic drug or oral hypoglycemic agent is used to treat diabetes mellitus. They usually work by lowering the glucose levels in the blood. There are different types of anti-diabetic drugs, and their use depends on … Read More

Anaesthetics
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An anesthetic (or anaesthetic, see spelling differences) is a drug that causes anesthesia—reversible loss of sensation. These drugs are generally administered to facilitate surgery. A wide variety of drugs are used in modern anesthetic practice. Many are rarely used outside … Read More

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