THERAPEUTIC CLASSIFICATIONS OF VETERINARY DRUGS

Therapeutic Drug Classifications

Introduction to Therapeutic Drug Classifications

  • Drugs are most commonly classified based on their therapeutic use, meaning what condition or disease they are intended to treat.
  • This classification generally does not imply the specific form (e.g., tablet, liquid) or route of administration (e.g., oral, injectable) of the medication.
    • A single drug can often be available in various forms and administered through different routes.
Key Points for Therapeutic Drug Classifications
  • Multiple Uses: Many drugs possess more than one therapeutic use, leading to their inclusion in multiple classification categories.
  • Varying Sources: Different sources or reference materials may categorize drugs into different classes.
  • Understanding Patient Conditions: Knowledge of a drug's classification provides valuable insight into a patient's condition and helps anticipate the expected effects and outcomes of its administration.

Outline of Veterinary Drug Categories

  • Anti-infective/Antimicrobial Drugs
  • Antiparasitics
  • Gastrointestinal Drugs
  • Cardiovascular Drugs
  • Nervous System Drugs
  • Respiratory Drugs
  • Renal / Urinary Drugs
  • Endocrine/Hormonal/Reproductive Drugs
  • Immunologic Drugs
  • (Note: Analgesics will be covered in a separate lecture.)

Anti-infective Drugs

  • Definition: Also known as antimicrobials, these substances are used to treat various types of infections.
  • Targets of Infection:
    • Bacterial infections
    • Fungal infections (mycoses)
    • Protozoal infections
    • Viral infections
  • Mechanism of Action: They either destroy (indicated by the suffix −cidal-cidal) or inhibit the growth (indicated by the suffix −static-static) of specific infectious organisms.
  • Criteria for Effectiveness: For an anti-infective drug to be effective, it must:
    • Reach the site of infection in a sufficient quantity.
    • Maintain that sufficient quantity for the entire required duration.
    • Failure to meet both criteria can lead to treatment failure or the development of antimicrobial resistance.
Types of Anti-infective Drugs
  • Antibiotics / Antibacterial Drugs:
    • Specifically target and treat bacterial infections.
    • Hundreds of types exist, each effective against a particular group of bacteria.
    • Even