Tachyphylaxis is a rapid decrease in drug response after repeated doses in a short period, leading to reduced effectiveness. Definition…
Dependence is a condition in which the body adapts to continuous drug use, making the substance necessary to maintain normal…
Spare receptors enhance drug response, allowing maximum effect even when not all receptors are occupied. Definition of Spare Receptors: Spare…
Antagonists are drugs that block receptor activity, preventing the action of agonists or natural ligands. Definition: An antagonist is a…
Agonists are drugs that bind to receptors and activate them to produce a biological response. Definition: An agonist is a…
Routes of drug administration determine how medicines enter the body, including oral, intravenous, inhalation, and topical methods. The routes of…
Definition of Essential Drugs Concept Essential drugs (or essential medicines) are those that: Satisfy the priority health care needs of…
Membrane Transport of Drugs involves processes like passive diffusion, facilitated diffusion, active transport, and endocytosis for drug movement across cell…
Source of Drugs includes natural, synthetic, and biotechnological origins such as plants, animals, minerals, and microorganisms. Drugs can be obtained…
Nature of Drugs refers to the physical, chemical, and biological properties of drugs that determine their action, effectiveness, and therapeutic…
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