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Instructions for Use/Handling: Dilution: Salbutamol and guaifenesin expectorant syrup may be diluted with purified water BP. The resulting mixture should be protected from light and used within 28 days.
A 50% v/v dilution of salbutamol and guaifenesin expectorant syrup has been shown to be adequately preserved against microbial contamination. However, to avoid the possibility of introducing excessive microbial contamination, the purified water BP used for dilution should be recently prepared or alternatively it should be boiled and cooled immediately before use.
Incompatibilities: Dilution of salbutamol and guaifenesin expectorant syrup with syrup BP or sorbitol solution is not recommended as this may result in precipitation of the cellulose thickening agent.
A mixture of salbutamol and guaifenesin expectorant syrup with other liquid preparations is not recommended.
