BP102T • Unit 1Topic 3 of 3⏱ 5 Min Read

3. International Compendia: BP, USP, Ph.Eur. & Anatomy of a Monograph

💡 Core Concept & Clinical Context:

Beyond the IP, major international pharmacopoeias include the British Pharmacopoeia (BP, published annually by the MHRA in the UK), the United States Pharmacopeia–National Formulary (USP-NF, published annually by the United States Pharmacopeial Convention), and the European Pharmacopoeia (Ph.Eur.). A Pharmacopoeial Monograph is a structured, standardized entry for a specific chemical substance or formulated product containing: Title, Chemical Formula & Molecular Weight, Definition/Category, Description (appearance, solubility), Identification Tests, Impurity / Limit Tests, Assay Method, and Packaging & Storage Instructions.

Clinical Scenarios & Pharmacopoeial Examples:

1Anatomy of an Official Monograph: Paracetamol IP

Breakdown of the official monograph sections for Paracetamol tablets.

Step-by-Step Breakdown:

•1. Title: Paracetamol Tablets IP (Acetaminophen)

•2. Category: Analgesic and Antipyretic

•3. Chemical Formula: C8H9NO2 (Mol. Wt: 151.2 g/mol)

•4. Description: White, crystalline powder; odorless; slightly bitter taste.

•5. Solubility: Soluble in 70 parts of water, 7 parts of alcohol (95%), 13 parts of acetone.

•6. Identification: UV absorption maximum at 249 nm in 0.1M HCl; IR spectrum concordance with RS.

•7. Limit Tests: 4-Aminophenol (max 0.005%), Related substances (HPLC), Heavy metals.

•8. Dissolution: Not less than 75% (Q) of label claim dissolved in 45 minutes in phosphate buffer pH 5.8 (Apparatus 2, 50 rpm).

•9. Assay: UV Spectrophotometry / HPLC (Contains 95.0% to 105.0% of stated amount).

•10. Storage: Store protected from light and moisture in well-closed containers.

📋Key Takeaways & Exam Highlights

USP-NF: USP contains drug substances and dosage forms; NF contains pharmaceutical excipients and adjuvants.
Reference Standard (RS): Highly purified, character-certified reference materials supplied by the pharmacopoeial commission for comparative assays.
General Notices: Preceding chapter in every pharmacopoeia providing binding operational rules, definitions of terms (e.g. 'soluble', 'room temperature'), and container types.

🇮🇳 हिन्दी व्याख्या (3. International Compendia: BP, USP, Ph.Eur. & Anatomy of a Monograph)

मोनोग्राफ (Monograph) किसी दवा की पूरी प्रोफाइल होती है, जिसमें उसका रासायनिक नाम, घुलनशीलता (Solubility), पहचान टेस्ट (Identification), शुद्धता की सीमा (Assay) और रखने के नियम (Storage) दर्ज होते हैं।