Impurities

Pharmaceuticals, printers and paintballs: when variability in excipient quality is and isn’t acceptable

Excipient Quality blog post thumbnail.

Regardless of whether it’s prescription or over-the-counter, the ingredients on a drug product label typically include one, maybe two, active pharmaceutical ingredients (APIs). The rest of the list is comprised of “inactive” ingredients (excipients) which in reality are far from inactive. Variability may be acceptable for products such as printer ink and paintballs, but not pharmaceuticals, making quality standards for excipients critical to ensuring consistent drug quality.

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USP Reference Standards: 5 Tools You Should Know About

Resources for USP Reference Standards Users

Discover convenient tools and helpful tips related to using USP Reference Standards in your work. USP Reference Standards are intended for quality control use in conducting assays and tests in USP’s documentary standards for drugs, dietary supplements, and foods. 

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Top 5 of 2015: Most-Read Quality Matters Blog Posts

Top Five Quality Matters Blog Posts of 2015

Thank you for helping Quality Matters spread the word in 2015 about USP quality standards and the important role our work plays in industry, public health and lives around the world. These five posts are the ones that you, our readers, found to be the most engaging and useful in 2015. 

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