RESUMO
Objective: To obtain a clear, well-tasted and qualified compound glycyrrhiza oral solution by improving the addi-tion method of compound camphor tincture. Methods: Pulvis Talci instead of 56% alcohol was used to improve the solubility of camphor and anise oil. Firstly, camphor and benzoic acid were dissolved in 95% alcohol. Then the anise oil was mixed with Pulvis Talci and triturated sufficiently. After that, camphor solution and water were mixed with Pulvis Talci and agitated sufficiently. The im-proved compound camphor tincture was obtained after filtration. At last, a new compound glycyrrhiza oral solution was obtained by the pharmacopeial method. Results: The preparation was clear, well-tasted and qualified. Conclusion: The improved method is fea-sible, simple, stabilized and economical.