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Stability-indicating method degradation studies

Zhang et al. [43] developed and validated a stability indicating HPLC method for the determination of lornoxicam in pharmaceutical formulation. The isocratic procedure was performed in Shimadzu ODS (4.6 mm x 15 cm, 5 pm) column maintained at 25 °C. The mobile phase was degassed mixture of sodium acetate (0.05 mol/L, pH 5.8) and methanol (55 45). The flow rate was 1 ml/min and detection at 290 nm. Selectivity, specificity, linearity, precision, accuracy, and robustness were evaluated to validate the analytical method. Forced degradation studies were performed to provide an indication of the stability-indicating capacity. The stability indicating method for lornoxicam in the injectable dosage was developed and validated. The method can be considered for routine analysis and quality control of lornoxicam in injectable formulation. [Pg.233]

Chapter 7 focuses on how to develop stability indicating methods for API as well as drug products. It also discusses forced degradation studies that challenge the stability indicating power of analytical methods. [Pg.369]

Forced degradation samples are used in the process of developing stability-indicating methods early in development prior to initiating formal stability studies. The samples are analyzed for API peak purity (coeluting impurities), specificity, and mass balance. Efforts are also focused on determination degradation pathways/mechanisms for API and DP. [Pg.60]

The stress studies should demonstrate that impurities and degradants from the active ingredient do not interfere with the quantitation of the API [12]. Stress testing of the API, in addition to validating the stability-indicating power of the analytical method, can also help establish the degradation pathways and the intrinsic stability of the molecule [7]. [Pg.566]


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Degradation indicator

Degradation method

Degradation stability

Degradation stabilizers

Degradation studies

Degradation studies stability-indicating

Degradative studies

Indicator methods

Stability methods

Study methods

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