Dissolution Testing: Practical Guide USP vs. Ph. Eur.
Apparatus, medium, degassing, sampling, and S1–S3 criteria: how to execute dissolution testing in an audit-ready way, USP and Ph. Eur.
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Practical analysis of the USP, European Pharmacopoeia and other compendia: monographs, methods, reference standards, bioassays, dissolution, OOS and change control. Built to manage differences across markets, verify methods and keep the Pharmaceutical Quality System aligned with updates.
PHARMACOPOEIAS · METHODS · STANDARDS
Reference standards, method verification, bioassays, dissolution, OOS and audits addressed through practical criteria, examples and concrete control points.
Apparatus, medium, degassing, sampling, and S1–S3 criteria: how to execute dissolution testing in an audit-ready way, USP and Ph. Eur.
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How to store and track Reference Standards in GMP: temperature/light/humidity control, expiry dates, usage logs, inventory and audit checklists.
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PDG and ICH Q4B explained operationally: harmonised chapters, allowed differences, how to avoid duplicate testing, and how to design SOPs and change control that stand up to audits.
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How to qualify and re-qualify a secondary standard: comparison vs primary, acceptance criteria, calculations, documentation and common pitfalls to avoid.
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What FDA/EMA inspectors ask about USP/Ph. Eur. divergences and which evidence is required: dossiers, tables, risk assessments, comparability data, and response scripts.
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How to manage RS / CRS / USP RS and Working Standards in GMP: types, traceability, compendial use, risks and inspection expectations.
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