Abstract
Background
A number of chromatography methods for estimating combined dosage forms of telmisartan have been published in the literature, but each combined dosage form needs separate chromatography conditions for analysis.
Objective
The versatile, economical, eco-friendly, and robust chromatographic method has been developed for simultaneous estimation of multiple combined pharmaceutical dosage forms of anti-hypertensive drugs using the analytical quality by design approach based on principles of quality risk management (QRM) and design of experiment (DoE).
Method
Analytical QRM was performed by identifying probable method risk parameters and risk assessment for the development of the method. DoE was performed by Taguchi Orthogonal Array (OA) screening design and Box-Behnken response surface design using Design-Expert software (trial version). Chromatographic separation was performed using silica gel 60 GF254 as stationary phase and toluene:ethyl acetate:methanol:glacial acetic acid (5.5 + 2 + 1 + 0.2, v/v/v/v) as a mobile phase keeping saturation time of 15 min. The developed method was applied for the assay of six combined pharmaceutical dosage forms of anti-hypertensive drugs.
Results
The developed method was found to be validated for accuracy, precision, specificity, linearity, LOD, LOQ, and robustness as per ICH guideline. The results of the assay were found in good agreement with the labelled claim.
Conclusions
The developed method can be applied for analysis and quality control of multiple combined dosage forms of telmisartan.
Highlights
A QRM and DoE-based AQbD approach was applied for development of chromatography method for simultaneous estimation of multiple combined dosage forms of telmisartan. The developed method was successfully applied for simultaneous estimation of six different multiple combined dosage forms of temisrtan.