B.Pharm Medicinal Chemistry-I Question Bank for Semester Exams 2026

B.Pharm Medicinal Chemistry Question Bank 2026 is designed for B.Pharm Semester 4 students preparing for BP402T exams. This exam-focused content highlights the most expected questions based on syllabus coverage and previous year trends.

The syllabus is divided into five units covering core concepts like drug metabolism, ANS, CNS drugs, and anti-inflammatory agents. Each unit includes both short and long answer questions for effective preparation.

Medicinal Chemistry Question Bank 2026: Unit-Wise Syllabus Breakdown

Understanding the syllabus structure is crucial before practicing questions.

• Unit 1: Introduction, history, physicochemical properties, drug metabolism

• Unit 2: Sympathetic nervous system (ANS)

• Unit 3: Parasympathetic nervous system (ANS)

• Unit 4: CNS drugs (sedatives, anticonvulsants, antipsychotics)

• Unit 5: General anesthetics, analgesics, NSAIDs

This balanced structure ensures equal weightage in exams.

Unit 1: Important Questions on Introduction, history, physicochemical properties, drug metabolism

Unit 1 is a scoring section focused on theory and concepts.

Short Questions

• Discuss “solubility” property of drug in relation to biological action.

• Define metabolism.

• Discuss “chelation” in relation to biological action.

• Define the term “eutomer” and “distomer”.

• Describe “geometrical isomerism” in relation to biological action with suitable example.

Long Questions

• Outline history and development of medicinal chemistry. Define metabolism.

• Discuss Phase-I and Phase-II drug metabolism.

• Outline “bioisosterism” with suitable example.

• Explain the various factors affecting drug metabolism.

• Discuss physicochemical properties in relation to drug action

Unit 2: Important Questions on ANS – Sympathetic System

This unit focuses on drug classification, synthesis, and mechanisms.

Short Questions

• Outline the structure and uses of prazosin.

• Elaborate the synthesis of phenylephrine.

• Differentiate alpha and beta adrenergic receptors with respect to their distribution.

• Describe the mechanism of action and uses of propranolol.

Long Questions

• Discuss classification and SAR of sympathomimetics.

• Classify alpha adrenergic blockers. Give synthesis of prazosin.

• Classify beta adrenergic blockers. Give synthesis of propranolol.

• Describe the mechanism of action, synthesis and uses of propranolol.

Unit 3: Important Questions on Parasympathetic System

Conceptual clarity is important for this unit.

Short Questions

• Enlist the neurotransmitter of cholinergic system with its structure.

• Outline the difference between reversible and irreversible cholinesterase inhibitors.

• Describe the catabolism of acetylcholine.

• Describe the types of cholinergic receptors.

• Describe the mechanism of action of indirect cholinesterase inhibitors.

Long Questions

• Discuss classification of Parasympathomimetics.

• Illustrate in detail SAR of parasympathomimetics. Add a biosynthesis of acetylcholine.

• Illustrate the synthesis, MOA and uses of (i) Carbachol (ii) Neostigmine.

• Describe the mechanism of action, synthesis and uses of dicyclomine.

• Discuss in detail about Solanaceous alkaloids. Add anticholinergic agents.

Unit 4: Important Questions on CNS Drugs

This unit includes high-weightage topics related to CNS drugs.

Short Questions

• Compare sedatives and hypnotics.

• Give the MOA and structure of ethosuximide.

• Outline the synthesis of chlorpromazine hydrochloride.

• Give the structure and uses of diazepam.

Long Questions

• Outline the classification of anticonvulsants. Discuss the synthesis, mechanism of action, and uses of Phenytoin.

• Illustrate the SAR of benzodiazepines.

• Outline the classification of sedatives and hypnotics. Discuss the mechanism of action and uses of barbital.

• Discuss the SAR of phenothiazines.

Unit 5: Important Questions on Anesthetics & NSAIDs

This unit is highly important for scoring marks.

Short Questions

• Synthesis of halothane

• Structure of narcotic agonists

• Difference between narcotic and non-narcotic analgesics

• NSAIDs definition with aspirin structure

• Dissociative anesthetics (ketamine)

Long Questions

• Synthesis and uses of ibuprofen and mefenamic acid

• Discuss the SAR of morphine analogues

• Outlines the Classification of NSAIDs with suitable examples and structure, and discuss their mechanism of action 

• Outlines the Classification of general anesthetics

• Illustrate the classification of Opioid analgesics and discuss the fentanyl synthesis

Medicinal Chemistry Question Preparation Strategy

A strategic approach is essential to maximize scores.

• Focus equally on all units (balanced exam pattern)

• Prepare both short and long questions

• Practice structures and mechanisms regularly

• Revise SAR and drug classifications thoroughly

• Do not skip any unit, as all carry weightage

Consistent revision and structured notes can improve performance significantly.

Medicinal Chemistry Question Bank 2026: Key Exam Insights

• Questions are evenly distributed across all units

• Unit 1 is considered scoring due to its theoretical nature

• Structure-based questions are frequently asked

• Previous year questions often repeat in a modified form

• Mechanism and synthesis are high-weight topics

Students should prioritize conceptual clarity along with memorization.