This is a prospective, randomized, double-blind, and controlled clinical study to investigate the effects of DLBS1033 in conjunction with standard therapy compared to standard therapy alone in acute ischemic stroke patients. It is hypothesized that the improvement in functional outcomes as measured by NIHSS and BI as well as the improvement in haemostatic parameters as measured by thrombocyte aggregation test (TAT), fibrinogen, and d-dimer in DLBS group will be significantly greater than those in the control group.