Ketotifen is a medication used to treat allergies and asthma. However, during the manufacturing process, impurities may be introduced into the final product. These impurities can be potentially harmful to the patient's health, and therefore, their detection and quantification are essential. The most commonly reported Ketotifen impurities include related compounds, degradation products, and residual solvents. Analytical techniques such as High-Performance Liquid Chromatography (HPLC) and Gas Chromatography-Mass Spectrometry (GC-MS) are used for the detection and quantification of these impurities.
![4-(1-Methyl-4-piperidinyl)-4H-benzo[4,5]cyclohepta[1,2-b]thiophene-4-ol](https://clearsynth.com/structure/4--1-Methyl-4-piperidinyl--4H-benzo-4-5-cyclohepta-1-2-b-thiophene-4-ol.png "Ketotifen Impurities")
