Eligibility Criteria

Inclusion Criteria

- Ischemic stroke diagnosed with both criteria of traditional Chinese medicine and western medicine；
- 18-85 years old；
- Over 6 hours and within 14 days from onset
- 4<=NIHSS <=22;
- Informed consent signed by patient or his/her family ；

Exclusion Criteria

- Hemorrhagic stroke;
- Cerebral hernia;
- Serious heart, liver, lung, kidney functional failure,malignancy;
- Not cooperative with physician;
- Psychological disorder;
- Already taken part in other clinical drug trial within the past 3 months