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Choosing the Right Receptor Medium for IVRT and IVPT Studies
01
Aug
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Choosing the Right Receptor Medium for IVRT and IVPT Studies

In vitro release testing (IVRT) and in vitro permeation testing (IVPT) are widely used to characterize topical and transdermal drug products throughout formulation development, quality assessment, and comparative performance studies. While parameters such as membrane selection, diffusion cell configuration, sampling intervals, and temperature control receive considerable attention, one experimental factor has an equally important influence […]
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Raw Material Variability: Why the Same Material Name Does Not Guarantee the Same Performance
21
Jul
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Raw Material Variability: Why the Same Material Name Does Not Guarantee the Same Performance

Pharmaceutical formulation development depends not only on selecting the appropriate active pharmaceutical ingredient (API) and excipients but also on understanding the inherent variability of pharmaceutical raw materials. Although two materials may share the same pharmacopeial name, grade, or specification, they do not necessarily exhibit identical physicochemical characteristics or perform identically within a formulation. Differences in […]
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Method Readiness Before Validation: What to Check Before You Start the Protocol
18
Jul
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Method Readiness Before Validation: What to Check Before You Start the Protocol

Analytical method validation is a critical requirement for demonstrating that a method is suitable for its intended purpose. However, one of the most common reasons for unsuccessful validation studies is not the validation protocol itself, it is inadequate method readiness before validation begins. Method validation is designed to confirm the performance of an already optimized […]
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Excipient Screening vs Excipient Synthesis: Which Problem Are You Actually Solving?
13
Jul
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Excipient Screening vs Excipient Synthesis: Which Problem Are You Actually Solving?

Excipients play a fundamental role in pharmaceutical formulation development, influencing manufacturability, stability, drug release, bioavailability, patient acceptability, and overall product performance. Although many pharmaceutical products can be successfully developed using commercially available excipients, certain formulation challenges cannot always be resolved through conventional excipient selection alone. When formulation performance does not meet predefined development objectives, scientists […]
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Extractables, Leachables, and Nitrosamines: Where Pharmaceutical Packaging Risk Assessments Commonly Miss Risk
29
Jun
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Extractables, Leachables, and Nitrosamines: Where Pharmaceutical Packaging Risk Assessments Commonly Miss Risk

Pharmaceutical packaging systems are designed to protect products throughout manufacturing, storage, transportation, and patient use. As a result, packaging risk assessments have become a routine part of pharmaceutical development and quality management programs. However, one important challenge remains: not all packaging-related risks are immediately visible. While many packaging assessments focus on material compatibility, stability, and […]
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Elemental Impurity Risk Assessment vs Confirmatory ICP-MS Testing: When Do You Need Both?
23
Jun
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Elemental Impurity Risk Assessment vs Confirmatory ICP-MS Testing: When Do You Need Both?

Elemental impurities remain a critical consideration in pharmaceutical quality systems because trace metal contaminants can affect product safety, regulatory compliance, and overall product quality. To manage these risks, pharmaceutical manufacturers are expected to follow the principles outlined in ICH Q3D, which provides a risk-based framework for evaluating and controlling elemental impurities. However, one of the […]
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Nitrosamine Risk in Packaging and Storage: The Overlooked Source After Manufacturing
19
Jun
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Nitrosamine Risk in Packaging and Storage: The Overlooked Source After Manufacturing

Nitrosamine impurities have become one of the most closely scrutinized classes of pharmaceutical contaminants due to their potential carcinogenic risk and increasing regulatory attention. Following several high-profile product recalls, pharmaceutical manufacturers have implemented extensive risk assessment and testing programs to identify and control potential sources of nitrosamine formation. Most discussions surrounding nitrosamines focus on manufacturing […]
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