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November News and Updates

Media Fill Testing

A media fill test is required by United States Pharmacopeia (USP) and state boards of pharmacy to prove that the aseptic technique process can produce a sterile product without contamination. According to USP <797>, any person engaged in sterile compounding must conduct a media fill test...

August News & Updates

Particulate Matter: What is It and...

Particulate matter contamination in injectable drug products, especially in large numbers, can cause harm to patients. Common particulate sources include: solvent impurities, drug precipitates, dust, glass, rubber, environmental contaminants, fibers and other insoluble materials. 

The size of particulate matter is an important factor when considering the potential risk to patients. Particles as small as 2 μm in diameter have been associated with microthrombi formation in patients. Dr. Michael Akers with the Food and Drug Administration notes that the smallest capillary blood vessels are considered to have a diameter of approximately 7 μm. Therefore, all particles having a size equal to or greater than 7 μm can conceivably become entrapped in and obstruct capillaries, increasing the potential for adverse effects. Simple visual inspection, which is required for compounded injections, may be adequate for large particles, but is inadequate for smaller particles. The lower limit of visibility of the naked eye is approximately 40 μm. Specialized testing methods are therefore necessary to adequately assess the total particulate burden of injections.

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Quality Compounding Summit

Microbial Limits...

Contamination of pharmaceuticals with microorganisms may lead to deleterious effects on therapeutic properties of the drug, and may potentially cause injuries to intended recipients. Cases of contaminated nonsterile products have been reported in increasing numbers, and often associated with the presence of objectionable microorganisms. Methods for detection of these organisms are described in three major Pharmacopeias.

USP <61> Microbiological Examination of Non-Sterile products: Microbial Enumeration provides tests used to determine bioburden present in raw materials, during production, and in the finished product. This microbiological test determines the total population of aerobic bacteria and yeast and molds that might be present in pharmaceutical ingredients and finished products...