Effects of Jinma Tongluo capsule (JT C) on the incidence of micronucleu s of marrow cells in mice with Kunming species were reported. JTC intragastric d osages of 100 mg/kg, 400 mg/kg, 1600 mg/kg (equivalent to 3, 12 and 48 times of the clinical dosage respectively) were given to the mice.Twenty-four hours later th e mice were e xecuted and the marrow cells were examined. The incidence of micronucleus was 2 .00‰, 1.83‰, 2.17‰ respectively. In the group of dosage of 1600 mg/kg, the inci dence was maintained in the normal limits within 12～72h. And the differences we r e not significant as compared with the negative group and the solvent control gr oup. It's indicated that ig total alkalin of Flos Daturae under 0.86 mg/kg has no effect on micronucleus of mice marrow cells.

Effects of Jinma Tongluo capsule (JTC) on the incidence of micronucleus of marrow cells in mice with Kunming species were reported. JTC intragastric dosages of 100 mg/kg, 400 mg/kg, 1600 mg/kg (equivalent to 3, 12 and 48 times of the clinical dosage respectively) were given to the mice.Twenty-four hours later the mice were executed and the marrow cells were examined. The incidence of micronucleus was 2.00‰, 1.83‰, 2.17‰ respectively. In the group of dosage of 1600 mg/kg, the incidence was maintained in the normal limits within 12～72h. And the differences were not significant as compared with the negative group and the solvent control group. It's indicated that ig total alkalin of Flos Daturae under 0.86 mg/kg has no effect on micronucleus of mice marrow cells.