OBJECTIVE: To observe the effects of naoluotong on dogs' cerebral blood flow. METHODS: The anaesthetized dogs were randomly divided into naoluotong (which was subdivided into high, medium and low dose subgroups) group, antigeron positive control group, naoxuekang group, and blank control group with 6 dogs in each group. The internal carotid artery flow (ICAF), blood pressure (BP), electrocardiogram (ECG) and heart rates of the dogs were determined at different time after administration with drugs. RESULTS: As compared with the blank...