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Asked: 2 years ago2023-08-17T21:14:21+06:00 2023-08-17T21:14:21+06:00In: Homoeopathic pharmacy

Mention the various Pharmacodynamics action of drug on human being.

Dr Beauty Akther
Dr Beauty AktherBegginer
Mention the various Pharmacodynamics action of drug on human being.
drughuman beingpharmacodynamics action
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    1. Dr Md shahriar kabir B H M S; MPH
      Dr Md shahriar kabir B H M S; MPH Teacher dr.basuriwala
      2023-08-17T21:17:05+06:00Added an answer about 2 years ago

      Pharmacodynamics refers to the study of how drugs exert their effects on the body. There are several primary actions that drugs can have on the human body: 1. Agonism: Agonists are drugs that bind to specific receptors in the body and activate them, leading to a biological response. This activationRead more

      Pharmacodynamics refers to the study of how drugs exert their effects on the body. There are several primary actions that drugs can have on the human body:

      1. Agonism: Agonists are drugs that bind to specific receptors in the body and activate them, leading to a biological response. This activation can mimic the effects of natural substances in the body.

      2. Antagonism: Antagonists are drugs that bind to receptors without activating them. Instead, they block the receptor’s activation by other molecules, effectively inhibiting a biological response.

      3. Partial Agonism: Partial agonists have properties of both agonists and antagonists. They can activate receptors, but their effects are not as strong as those of full agonists. They can also block the effects of full agonists when present at the same time.

      4. Inverse Agonism: Inverse agonists reduce the basal activity of a receptor. Unlike antagonists, which simply block the effects of agonists, inverse agonists actively produce an opposite effect.

      5. Desensitization and Downregulation: Prolonged exposure to some drugs can lead to desensitization or downregulation of receptors. This means that the body becomes less responsive to the drug over time, requiring higher doses to achieve the same effect.

      6. Enzyme Inhibition/Induction: Some drugs can inhibit or induce certain enzymes in the body, affecting the metabolism of other drugs or endogenous compounds.

      7. Allosteric Modulation: Allosteric modulators bind to a site on a receptor other than the active site. They can enhance or inhibit the receptor’s response to an agonist.

      8. Pharmacogenetics: Genetic variations can influence an individual’s response to drugs. Some people metabolize drugs more quickly or slowly due to genetic factors, which can impact their effectiveness or potential side effects.

      9. Tolerance: With prolonged drug use, the body may develop tolerance, requiring higher doses to achieve the same effect. This can lead to a decrease in the drug’s efficacy.

      10. Cross-tolerance and Cross-sensitivity: Tolerance to one drug may lead to tolerance to another drug with a similar mechanism of action. Similarly, an allergic reaction to one drug may increase the likelihood of an allergic reaction to another drug with similar structural features.

      These actions can vary depending on the specific drug, its target receptors, and its interactions within the body.

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