INTRODUCTION TO DRUGS (PHARMACOLOGY FOR NURSES)

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DRUG INTRODUCTION IN NURSING PHARMACOLOGY - CHAPTER 1

SUMMARY:

  • Overview and Historical Context
  • Defining Key Concepts
  • Origins of Medications
  • Sources of Drug Information
  • Conclusion

INTRODUCTION & HISTORICAL CONTEXT Pharmacology, the study of drug interactions with living systems, finds its roots in the Greek words 'PHARMACON' (drug) and 'logos' (study). Over time, civilizations recognized both the positive and adverse effects of various substances. In the last century, pharmacology experienced significant growth, introducing novel drugs, concepts, and techniques, transforming the treatment landscape.

DEFINING KEY CONCEPTS A drug is defined by the World Health Organization (WHO) as any substance used for diagnosing, preventing, or treating diseases. WHO also emphasizes substances modifying physiological or pathological states for the recipient's benefit.

ORIGINS OF MEDICATIONS Ancient civilizations acknowledged the utility and toxicity of plant and animal products. The evolution of pharmacology brought about breakthroughs, with once-incurable diseases now treatable with simple tablet regimens.

SOURCES OF DRUGS Natural sources include plants (e.g., atropine, morphine), animals (e.g., insulin, heparin), minerals (e.g., magnesium sulfate), microorganisms (e.g., antibacterial agents), and humans (e.g., immunoglobulins, growth hormone). Additionally, synthetic drugs dominate today, with most being synthesized, and some obtained through cell cultures.

SOURCES OF DRUG INFORMATION Diverse drug compendia serve as rich sources of information:

  1. OFFICIAL COMPENDIA

    • Pharmacopeia: An official publication listing approved drugs, detailing their sources and formulas.
    • Drug Formulary: A national committee-prepared compilation focusing on therapeutic formulations.

  2. NON-OFFICIAL COMPENDIA

  • Textbooks: Notable titles include "The Pharmacological Basis of Therapeutics" by Goodman and Gilman, Merck Index, etc.

  • Journals: Local, national, and international medical organizations publish journals containing updated drug information.

  • Periodicals:

    • Indian Drug Review (bi-monthly)
    • Monthly Index of Medical Specialties (MIMS, India - monthly)
    • Current Index of Medical Specialties (CIMS - quarterly)
  1. MEDLINE Medline, an electronic resource, encompasses literature in medicine, nursing, pharmacy, dentistry, healthcare, and veterinary medicine. Compiled by the U.S. National Library of Medicine, Medline contains a vast database dating back to 1950.

CONCLUSION This comprehensive overview delves into the introduction of drugs, their definitions, sources, and where to find pertinent information. The content aims to be a valuable study resource, and any queries are encouraged in the comment section.

Thank you for your attention, and best of luck in your studies!

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