Pseudoephedrine, and Chlorpheniramine Maleate Syrup

Scale (mg/tablet) Item Material Name Quantity/L (g) 

In a suitable vessel, add sorbitol syrup and hydroxyethylcellulose and purified water mix well. 

After obtaining clear solution, put under stirring hydroxyethyl cellulose suspension, rinse the container with purified water, and transfer the rinsing to the vessel. 

After 1 hour, a clear gel without lumps is obtained. 

The gel is then diluted with sorbitol syrup and cooled to 30°C. 

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