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• Drugs and medicine


  Substances that result in a physiological effect when ingested or otherwise introduced into the body
• Physiological effect of drugs


  Can be either negative or positive since drugs have different uses and purposes
• Effects of medicine


  Often positive and favorable since the main purpose of medicine is treating diseases
• Purpose of drugs


  Used for different purposes such as treating disease, relieving pain, recreation and improving cognitive abilities
• Purpose of medicine


  Mainly used to treat disease or relieve pain
• Drug effects


  • May have either positive or negative effect
• Medicine effects


  • Usually has a positive effect on the health
• Agonists and antagonists


  Have affinity, but agonists produce a functional response that can be 'standard' or inverse. Antagonists reverse the effects of agonists in a competitive or non-competitive (also irreversible) manner, and there are examples of all classes in drugs used in anaesthesia and pain medicine
• Therapeutic classification of medicines


  Describes the clinical purpose of the physiological change induced by the drug
• Pharmacological classification of medicines


  Describes the specific thing the drug does on the molecular level
• agonists produce a functional response that can be 'standard' or inverse
• Antagonists reverse the effects of agonists in a competitive or non-competitive (also irreversible) manner,
• examples of all classes in drugs used in anaesthesia and pain medicine