Dissolution Studies for Pharmaceuticals

Dissolution Testing Studies are a core part of Pharmaceutical Analysis and are used to evaluate the release of the active pharmaceutical ingredient (API) from a dosage form into a dissolution medium under defined and controlled conditions. These studies provide critical information regarding product performance, consistency, and quality throughout the product lifecycle.

A Dissolution Study evaluates the rate and extent to which the Active Pharmaceutical Ingredient (API) is released and dissolved from a solid dosage form (such as tablets or capsules) into a specified dissolution medium. Dissolution Testing Studies are performed to predict in vivo drug performance, ensure batch-to-batch consistency, verify quality control of finished pharmaceutical products, support formulation development, demonstrate regulatory compliance, and identify potential manufacturing issues. In addition, Dissolution Testing Studies play an important role during pharmaceutical development and product optimization. They are frequently used to assess formulation changes, manufacturing process modifications, and product comparability. The data generated can support Quality by Design (QbD) approaches and provide valuable information during product development, technology transfer, and lifecycle management activities.

At QACS, dissolution testing is performed using USP Apparatus I (basket) and USP Apparatus II (paddle), in accordance with applicable pharmacopoeial requirements, for pharmaceutical dosage forms such as capsules and tablets. A wide range of dissolution media is supported, including buffers of different pH values and media containing surfactants, depending on product requirements and approved specifications. Following sampling, the analysis of dissolution samples can be performed using analytical techniques such as HPLC or UV–Vis spectrophotometry, depending on the characteristics of the active substance and the required analytical approach.

In cases where no dissolution method is available, QACS can develop, optimize, and validate an appropriate dissolution testing method tailored to the requirements of the specific product and active pharmaceutical ingredient, in accordance with approved specifications and applicable regulatory requirements. Comprehensive technical documentation and final study reports are provided to support quality control activities, product development programs, and regulatory submissions.