Unit 1312: Comprehensive Pharmacology

1. Introduction to Pharmacology

• Definition and scope of pharmacology
• History and evolution of pharmacology
• Sources of drugs: natural, synthetic, biotechnology-derived
• Basic principles:
  • Pharmacokinetics (brief overview)
  • Pharmacodynamics (brief overview)

2. Drug Administration and Dosage Forms

• Routes of drug administration:
  • Oral
  • Parenteral (intravenous, intramuscular, subcutaneous)
  • Topical
  • Inhalation
  • Others (rectal, transdermal)
• Dosage forms:
  • Tablets, capsules
  • Solutions, suspensions
  • Injections
  • Transdermal patches
• Impact of route and dosage form on:
  • Drug absorption
  • Bioavailability
  • Onset and duration of action

3. Drug Metabolism and Excretion

• Drug metabolism phases:
  • Phase I reactions (oxidation, reduction, hydrolysis)
  • Phase II reactions (conjugation)
• Role of liver enzymes (Cytochrome P450 system)
• Factors influencing metabolism
• Mechanisms and organs of drug excretion:
  • Renal excretion
  • Biliary excretion
  • Other routes

4. Drug-Receptor Interactions

• Concept of receptors and drug targets
• Types of drug-receptor interactions:
  • Agonists
  • Antagonists (competitive, non-competitive)
• Affinity and efficacy explained
• Dose-response relationship:
  • Graded vs quantal responses
  • Potency and maximal efficacy

5. Pharmacokinetics (Detailed)

• Absorption:
  • Factors affecting absorption
  • Bioavailability
• Distribution:
  • Plasma protein binding
  • Volume of distribution
• Metabolism (expanded from section 3)
• Excretion (expanded from section 3)
• Factors influencing pharmacokinetics:
  • Age, genetics, disease, drug interactions

6. Pharmacodynamics (Detailed)

• Mechanisms of drug action at molecular and cellular levels
• Drug receptors and signal transduction pathways
• Dose-response curves and therapeutic index
• Concepts of tolerance, tachyphylaxis, and drug resistance

7. Drug Classes and Mechanisms of Action

• Classification based on therapeutic use:
  • Antibiotics
  • Analgesics
  • Antihypertensives
  • Psychotropics
  • Others
• Mechanisms of action for key classes:
  • Enzyme inhibitors
  • Receptor modulators
  • Ion channel blockers
• Examples of common drugs in each class

8. Adverse Drug Reactions and Drug Interactions

• Types of adverse drug reactions:
  • Type A (predictable)
  • Type B (idiosyncratic)
• Common drug-drug interactions:
  • Synergistic
  • Antagonistic
  • Pharmacokinetic interactions
• Factors contributing to toxicity
• Strategies to minimize adverse effects

9. Pharmacogenomics and Personalized Medicine

• Basics of pharmacogenetics and pharmacogenomics
• Genetic factors influencing drug metabolism and response
• Examples of pharmacogenomic markers
• Role of personalized medicine in optimizing therapy

10. Regulatory Aspects of Pharmacology

• Drug development process overview
• Phases of clinical trials
• Drug approval pathways
• Post-marketing surveillance and pharmacovigilance
• Regulatory agencies roles (FDA, EMA, etc.)