Phenylpropanolamine, Chlorpheniramine, Dextromethorphan, Vitamin C Syrup

00 14 Ascorbic acid, USE sodium ascorbate fine powder 5.62 

In a covered stainless steel container, heat 500 mL water to boiling. Boil for 30 minutes. 

Turn off the heat and, while keeping the container covered, cool the water to 30°C while purging it with carbon dioxide. 

Keep this water in a covered container blanketed with carbon dioxide gas and use where indicated. 

Transfer to the main stainless steel mixing tank the polyethylene glycol 400, cover, start bubbling C02 gas, and then, while mixing, slowly heat to 60° to 65 °C. Maintain at this temperature. 

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