Pharmacodynamics
- Previous year questions on Pharmacodynamics for NEET PG (National Eligibility cum Entrance Test - Postgraduate), from the Pharmacology section of the exam.
- Most questions here come from previous-year papers of Indian postgraduate medical entrance and licensing exams; where a paper and year are recorded the question carries them. The image-based questions are original vignettes written around an openly licensed figure, and were never asked in any exam.
- 45 live questions in Pharmacodynamics.
- 6 of 45 questions carry a verified exam year: 2018, 2019, 2020.
- Pharmacology is worth about 20 of 300 questions on the exam. See every subject’s weightage.
- Question set last updated 6 Sept 2026.
Q1.Pharmacodynamics deals with:-
- AMode of excretion of a drug
- BMechanism of action of a drug✓ Correct answer
- CTransport of drug across the biological membranes
- DLatency of onset
Q2.which of the following is false regarding SPARE RECEPTOR ?
- Athey are needed for binding drug to achieve the maximum effect✓ Correct answer
- Bthey respond to agonists only
- Cthey do not alter maximal efficacy
- Dcan be detected by finding that EC 50 < Kd for the agonist
Q3.Regarding efficacy and potency of a drug, all are true EXCEPT:
- AIn a clinical setup, efficacy is more important than potency
- BIn the log dose response curve, the height of the curve corresponds with efficacy
- CED50 of the drug corresponds to the efficacy✓ Correct answer
- DDrugs that produce a similar pharmacological effect can have different levels of efficacy
Q4.which of the following is true regarding competitive reversible antagonism
- Apotency increases
- BKm decreases
- Cefficacy and Vmax no change✓ Correct answer
- DED50 decreases
Q5.A partial agonist can antagonize the effects of a full agonist because it has
- AHigh affinity but low intrinsic activity✓ Correct answer
- BLow affinity but high intrinsic activity
- CNo affinity and low intrinsic activity
- DHigh affinity but no intrinsic activity
Q6.A receptor which itself has enzymatic property is
- AInsulin receptor✓ Correct answer
- BProgesterone receptor
- CThyroxine receptor
- DGlucagonreceptor
Q7.drugs acting tyrosin receptor is ?
- ATRH
- BTSH
- CINSULIN✓ Correct answer
- DMSH
Q8.Therapeutic index of a drug is an indicator of:-
- APotency
- BSafety✓ Correct answer
- CEfficacy
- DAll of these
Q9.Which of the following drugs exhibits narrow therapeutic window phenomenon?
- ACaptopril
- BFurosemide
- CDiazepam
- DImipramine✓ Correct answer
Q10.According to signal transductions mechanism, GABA B is which type of receptor?
- ALigand gated receptor
- BNuclear receptor
- CG protein coupled receptor✓ Correct answer
- DEnzymatic receptor
Answer key
Q1: B. Mechanism of action of a drug; Q2: A. they are needed for binding drug to achieve the maximum effect; Q3: C. ED50 of the drug corresponds to the efficacy; Q4: C. efficacy and Vmax no change; Q5: A. High affinity but low intrinsic activity; Q6: A. Insulin receptor; Q7: C. INSULIN; Q8: B. Safety; Q9: D. Imipramine; Q10: C. G protein coupled receptor.
Other topics in Pharmacology
- Pharmacokinetics
- Adverse Drug Reactions and Pharmacovigilance
- Clinical Trials and Drug Development
- Pharmacokinetics: Applied Calculations
- ANS Overview and Cholinergic Agonists
- Sympathomimetics
- Parasympatholytics
- Sympatholytics
- Antiglaucoma Agents
- Antianginal Agents
- Drugs for Cardiac Failure
- Antihypertensives
- Diuretics
- Antiarrhythmic Agents
- Lipid-Lowering Agents
- Drugs Acting on the RAAS
- Antidiuretic Agents
- Sedative-Hypnotics
- Antiepileptics: Sodium Channel and GABAergic Agents
- Antiepileptics: Newer and Broad-Spectrum Agents
- Antipsychotic Agents
- Drugs for Mania and Mood Stabilization
- Antiparkinsonian Drugs
- Antidepressants and Anxiolytics
- Opioids: Classification and Actions
- Semisynthetic and Synthetic Opioid Analgesics
- Opioid Receptor Antagonists
- Ethanol and Other Alcohols
- Drugs for Alzheimer's and Neurodegenerative Disease
- Principles of Antimicrobial Use and Resistance
- Antimalarials
- Folate Antagonists, Quinolones and Urinary Antiseptics
- Drugs Targeting the 30S Ribosomal Subunit
- Drugs Targeting the 50S Ribosomal Subunit
- Antiretroviral Therapy for HIV
- Penicillins
- Cephalosporins, Carbapenems and Glycopeptides
- Other Antibacterial Agents
- Antiprotozoals and Anthelmintics
- Antifungals
- First-Line Antitubercular Drugs
- Second-Line and MDR-TB Regimens
- Antileprotic Drugs
- Antivirals: Non-Retroviral Agents
- Hypothalamic and Pituitary Hormones
- Thyroid Hormones and Antithyroid Drugs
- Corticosteroids
- Drugs for Osteoporosis and Calcium Disorders
- Antidiabetics: Oral Agents
- Antidiabetics: Insulins and Injectables
- Estrogens, Progestins and OCPs
- Androgens and Erectile Dysfunction Therapy
- Uterine Stimulants and Relaxants
- NSAIDs
- Drugs for Migraine and Gout
- DMARDs for Rheumatoid Arthritis
- Immunosuppressants and Immunomodulators
- Antihistamines
- Antiplatelet, Fibrinolytic and Antifibrinolytic Agents
- Hematinics
- Anticoagulants
- Drugs for Asthma and COPD
- Drugs for Peptic Ulcer and IBD
- Antiemetics, Prokinetics and Laxatives
- Cell Cycle-Specific Chemotherapy
- Cell Cycle-Nonspecific Chemotherapy
- Monoclonal Antibody Therapeutics
- Cytokines, Growth Factors and Targeted Agents