Study on the anti-inflammatory and analgesic effects of xiangqingzhitong spray

Objective Xiangqingzhitong spray( XQ spray) is a kind of class V new Chinese drugs. This paper studied the anti-inflammatory and analgesic effects of XQ spray to provide experiment evidence for clinical application. Methods Mice were divided into blank control A group,yunnan baiyao aerosol A group,voltaren A group and low,middle and high dose A group of XQ spray. Analgesic effects were studied by observing effect of XQ spray for pain threshold in electrical stimulation test. Mice were divided into blank control B group,yunnan baiyao aerosol B group,voltaren B group and low,middle and high dose B group of XQ spray. Analgesic effects were studied by observing the effects of XQ spray for pain threshold in tail pain tenderness test. Mice were divided into blank control C group,yunnan baiyao aerosol C group,voltaren C group and low,middle and high dose C group of XQ spray. Anti-inflammatory effects were observed by the models of ear swelling induced by xylene in mice. Rats were divided into blank control D group,yunnan baiyao aerosol D group,voltaren D group and low,middle and high dose D group of XQ spray. Anti-inflammatory effects were observed by the models of paw edema induced by carrageenin in rats.Results Electrical stimulation test showed that middle and high dose A group of XQ spray could enhance the pain threshold and the analgesia percentage reached 90% after the administration of 15 min and 30 min. Compared with control group,significant difference was found in medium and high dose A group( P 0. 05). High dose B group of XQ spray could enhance pain threshold in tail pain tenderness test markedly after the administration of 15 min and 30 min and the difference was significant compared with control group( P 0. 01). Middle dose C group could inhibit the ear swelling induced by xylene in mice and the difference was significant compared with control group( [4. 41 ± 4. 55]mg vs [9. 15 ± 3. 94]mg,P 0. 05). High dose C group could inhibit the ear swelling induced by xylene in mice and significant difference was found compared with control group( [3. 62 ± 3. 56]mg vs [9. 15 ± 3. 94]mg,P 0. 01).High dose D group could inhibit the paw edema induced by carrageenin in rats after the administration of 30 min and there was significant difference compared with control group( [1. 19 ± 0. 94]mg vs [2. 54 ± 1. 28]mg,P 0. 01). Conclusion XQ spray has significant anti-inflammatory and analgesic effects.