Impurity
How to Set Impurity Limits in Drug Products
Step-1: Classify the peak by origin Step-2: Map the dominant formation pathway and whether it’s avoidable Amlodipine besylate tablets example: Step-3: Apply the correct regulatory ruleset + exposure thresholds Step-4: Convert limits into analytical requirements Step-5: Link each limit to control level (control strategy) Related: Pharmaceutical Impurities Calculator Resource Person: Pearl Pereira ... Read More
Safe Impurity Limit for Pharmaceuticals
The fastest way to sabotage your own submission? Set impurity limits to “look safe” Both sides think they’re protecting the product. Sometimes both are wrong! Here’s what actually happens: Set the limit too tight – based on early data: What started as a ‘conservative’ decision now stretches your development timeline. ... Read More
Impurity Specification Across Different Regulatory Bodies
Impurities in pharmaceutical products play a critical role in ensuring drug quality, safety, and efficacy. Regulatory bodies such as the USFDA, EMA, PMDA, and others have specific guidelines for identifying, quantifying, and controlling impurities. Types of Impurities Key Guidelines for Impurity Control USFDA EMA PMDA (Japan) WHO Indian Pharmacopeia Differences ... Read More
Isolation and Identification of Impurities and Degradants
The identification of degradation products can provide an understanding of impurity formation and define degradation mechanisms. If the identification process is performed at an early stage of drug development, there is adequate time for improvements in the drug substance process and drug product formulation to prevent these impurities and degradants. ... Read More
Best Practices to control N-Nitrosamine Impurities
N-Nitrosamine impurities are a major concern for pharmaceutical industry. Because it is regulatory requirement to control the nitrosamine impurities in human drugs. In this article we are sharing 10 best practices to control the nitrosamine impurites. Use high-quality raw materials: The quality of raw materials used in the manufacturing process ... Read More