Conclusion The HPLC method for the determination of ethambutol hydrochloride, isoniazid, pyrazinamide and rifampicin could be used for the quality control of Yianbiqinlifuyiyan Tablets.

• 结论 盐酸乙胺丁醇、利福平、异烟肼和吡嗪酰胺的高效液相色谱含量测定方法，可以用于制剂的质量控制。