OBJECTIVE:To explore the acute toxicity on mice and lipid-lowering effect on rats of N-trimethyl chitosan iodide (TMCI). METHODS: The mice were assigned to receive TMCI at low and high doses (2.25,4.50 g·kg-1·d-1) for 7 days,with body weight recorded. Then the rats were randomly divided into 4 groups: blank normal group,hyperlipemia model group,cholestyramine (CLST) group,and TMCI group. Hyperlipemia model was established for the latter 3 groups before receiving corresponding drugs. Serum total cholesterol ...