Drug effect and classification

• Drugs


  Chemical substances that have an effect on living organisms
• Therapeutic drugs


  Drugs used for the prevention or treatment of diseases
• Drug names


  • Chemical name
  • Generic name
  • Brand (trade) name

  
• Example of generic and brand-name drug

  • Furosemide (Lasix)

  
• Effects of medications/drugs


  • Therapeutic Effect/ Desired Effect
  • Side Effects
  • Adverse Effects
  • Drug Toxicity
  • Drug Allergy
  • Drug Tolerance
  • Drug Interaction
• Therapeutic Effect/ Desired Effect


  The primary effect intended, the reason the drug is prescribed
• Side Effects


  Secondary effect of a drug that is unintended, usually predictable and may be either harmless or potentially harmful
• Adverse Effects


  More severe side effects that may justify the discontinuation of a drug
• Drug Toxicity


  Harmful effects of a drug on an organism or tissue, results from overdosage, ingestion of a drug intended for external use, or buildup of the drug in the blood because of impaired metabolism or excretion
• Drug Allergy


  An immunologic reaction to a drug
• Drug Tolerance


  Exists in a person who exhibits an unusually low physiological response to a drug and who requires increases in the dosage to maintain a given therapeutic effect
• Cumulative effect


  The increasing response to repeated doses of a drug that occurs when the rate of administration exceeds the rate of metabolism or excretion
• Drug Interaction


  Occurs when the administration of one drug before, at the same time as, or after another drug alters the effect of one or both drugs
• Drug classifications


  • According to the body system that they affect
  • According to therapeutic use or clinical indications
  • According to their physiologic or chemical action
• Prescription drugs


  Require an order by a health professional who is licensed to prescribe drugs
• Nonprescription drugs (Over-the-counter drugs)


  Sold without a prescription in a pharmacy or in the health section of department or grocery stores
• Illegal drugs (Recreational drugs)


  Drugs or chemical substances used for non therapeutic purposes, either obtained illegally or have not received approval for use by the FDA
• Drugs


  Chemical substances that have an effect on living organisms
• Therapeutic drugs


  Drugs used for the prevention or treatment of diseases
• Drug names


  • Chemical name
  • Generic name
  • Brand (trade) name
• Example of generic and brand-name drug

  • Furosemide (Lasix)

  
• Effects of medications/drugs


  • Therapeutic Effect/ Desired Effect
  • Side Effects
  • Adverse Effects
  • Drug Toxicity
  • Drug Allergy
  • Drug Tolerance
  • Drug Interaction
• Therapeutic Effect/ Desired Effect


  The primary effect intended, the reason the drug is prescribed
• Side Effects


  Secondary effect of a drug that is unintended, usually predictable and may be either harmless or potentially harmful
• Adverse Effects


  More severe side effects that may justify the discontinuation of a drug
• Drug Toxicity


  Harmful effects of a drug on an organism or tissue, results from overdosage, ingestion of a drug intended for external use, or buildup of the drug in the blood because of impaired metabolism or excretion
• Drug Allergy


  An immunologic reaction to a drug
• Drug Tolerance


  Exists in a person who exhibits an unusually low physiological response to a drug and who requires increases in the dosage to maintain a given therapeutic effect
• Cumulative effect


  The increasing response to repeated doses of a drug that occurs when the rate of administration exceeds the rate of metabolism or excretion
• Drug Interaction


  Occurs when the administration of one drug before, at the same time as, or after another drug alters the effect of one or both drugs
• Drug classifications


  • According to the body system that they affect
  • According to therapeutic use or clinical indications
  • According to their physiologic or chemical action
• Prescription drugs


  Require an order by a health professional who is licensed to prescribe drugs
• Nonprescription drugs (Over-the-counter drugs)


  Sold without a prescription in a pharmacy or in the health section of department or grocery stores
• Illegal drugs (Recreational drugs)


  Drugs or chemical substances used for non therapeutic purposes, either obtained illegally or have not received approval for use by the FDA