Unit 1643: Comprehensive Pharmacology

1. Introduction to Pharmacology

• Definition and scope of pharmacology
• Overview of drug therapy and its importance

2. Pharmacokinetics and Pharmacodynamics

2.1 Pharmacokinetics (PK)

• Absorption: routes, factors affecting absorption
• Distribution: blood flow, plasma protein binding, volume of distribution
• Metabolism: phase I and phase II reactions, liver enzymes (CYP450 system)
• Excretion: renal and non-renal routes
• PK parameters: half-life, clearance, bioavailability

2.2 Pharmacodynamics (PD)

• Drug-receptor interactions
• Dose-response relationships
• Therapeutic window and index
• Mechanisms of drug action

3. Drug Interactions

3.1 Pharmacokinetic Interactions

• Absorption interactions (e.g., chelation)
• Metabolic interactions (enzyme induction and inhibition)
• Excretion interactions

3.2 Pharmacodynamic Interactions

• Synergism, antagonism, and additive effects
• Examples of clinically significant drug interactions

4. Pharmacogenomics

• Definition and significance
• Genetic polymorphisms affecting drug metabolism (e.g., CYP2D6, CYP2C19)
• Impact on drug efficacy and toxicity
• Personalized medicine and tailored therapies

5. Drug Development and Approval Process

5.1 Stages of Drug Development

• Preclinical research
• Clinical trials (Phase I-IV)

5.2 Regulatory Approval

• Role of regulatory agencies (FDA, EMA, etc.)
• Submission and review of data

5.3 Post-Marketing Surveillance

• Pharmacovigilance
• Reporting adverse drug reactions

6. Drug Classes and Mechanisms of Action

• Overview of major pharmacological categories:
  • Antibiotics
  • Antihypertensives
  • Analgesics
  • Psychotropics
  • Antineoplastics
• Mechanisms of action for selected drug classes
• Therapeutic uses and clinical considerations

7. Adverse Drug Reactions and Side Effects

• Types of adverse drug reactions (Type A and B)
• Factors influencing adverse reactions
• Identification and management strategies
• Reporting and documentation

8. Pharmacotherapy in Special Populations

• Pediatric pharmacotherapy: dosing considerations, developmental pharmacokinetics
• Geriatric pharmacotherapy: polypharmacy, altered metabolism
• Pregnancy and lactation: drug safety categories, teratogenicity

9. Drug Resistance

• Mechanisms of resistance in infectious diseases and cancer
• Genetic and biochemical bases
• Strategies to overcome resistance (combination therapy, drug cycling)

10. Herbal and Alternative Medicines

• Common herbal remedies and their pharmacological effects
• Potential interactions with conventional drugs
• Evaluating evidence of efficacy and safety

11. Ethical and Legal Issues in Pharmacology

• Ethical prescribing and patient autonomy
• Informed consent and confidentiality
• Legal frameworks governing drug research, marketing, and use
• Issues in clinical trials and drug promotion

12. Summary and Integration

• Recap of key principles
• Case studies and application exercises