Pharmacology

 **Pharmacology** is a core subject in **second-year MBBS**, focusing on drugs, their mechanisms, uses, side effects, and interactions. It is crucial for understanding how medications treat diseases. ### **Main Lessons in Pharmacology** ### **1. General Pharmacology** (Basic Concepts) - Pharmacokinetics (Absorption, Distribution, Metabolism, Excretion) - Pharmacodynamics (Drug-receptor interactions, Dose-response curves) - Routes of drug administration - Adverse drug reactions & Toxicity - Drug interactions (Synergism, Antagonism) ### **2. Autonomic Nervous System (ANS) Drugs** - **Cholinergic Drugs** (Acetylcholine, Pilocarpine, Neostigmine) - **Anticholinergic Drugs** (Atropine, Scopolamine) - **Adrenergic Drugs** (Adrenaline, Noradrenaline, Dopamine) - **Adrenergic Blockers** (Propranolol, Prazosin) ### **3. Cardiovascular Pharmacology** - Antihypertensive drugs (ACE inhibitors, Beta-blockers, Diuretics) - Anti-anginal drugs (Nitrates, Calcium channel blockers) - Antiarrhythmic drugs (Amiodarone, Lidocaine) - Drugs for heart failure (Digoxin, Diuretics) ### **4. CNS Pharmacology** - Sedatives & Hypnotics (Benzodiazepines, Barbiturates) - Antiepileptic drugs (Phenytoin, Valproate, Carbamazepine) - Antipsychotics (Haloperidol, Clozapine) - Antidepressants (SSRIs, TCAs, MAOIs) - Opioids (Morphine, Codeine, Naloxone) ### **5. Respiratory & Gastrointestinal Pharmacology** - Bronchodilators (Salbutamol, Theophylline) - Antihistamines (Loratadine, Diphenhydramine) - Proton pump inhibitors (Omeprazole, Pantoprazole) - Laxatives & Antidiarrheal drugs ### **6. Endocrine Pharmacology** - Insulin & Oral Hypoglycemics (Metformin, Sulfonylureas) - Thyroid drugs (Levothyroxine, PTU) - Steroids & Hormonal Therapy ### **7. Chemotherapy (Antimicrobials & Anticancer Drugs)** - Antibiotics (Penicillins, Cephalosporins, Macrolides) - Antiviral drugs (Acyclovir, Oseltamivir, HAART for HIV) - Antifungal drugs (Amphotericin B, Fluconazole) - Anticancer drugs (Methotrexate, Cisplatin, Doxorubicin) ### **8. Miscellaneous Drugs** - Immunosuppressants (Cyclosporine, Tacrolimus) - NSAIDs & Painkillers (Aspirin, Paracetamol, Ibuprofen) - Local anesthetics (Lidocaine, Bupivacaine) --- ### **Study Tips for Pharmacology** - Use **mnemonics** (e.g., “ABC” for Beta-blockers: Atenolol, Bisoprolol, Carvedilol) - Refer to **KDT (Katzung, Lippincott, or Tripathi’s Essentials of Medical Pharmacology)** - Make **flashcards** for drug names, mechanisms, and side effects - Focus on **mechanisms of action (MOA)** and **clinical applications**

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