This study seeks to evaluate the efficacy and safety of mildronate injection in treating acute ischemic stroke

a randomized, double-blind, placebo-controlled phase II multicenter trial is conducted to evaluate the efficacy and safety of mildronate injection in patients with acute ischemic stroke. patients will be randomized to receive a 14-day treatment of placebo or mildronate (500mg/5ml/each).Primary end-point is the modified Rankin scale at 3 monthes. Secondary end-point is the NIHSS scores and the Barthel index at 8 days and 15days. The safety end-point is defined as the incidence of adverse events, the change of Samples for routine laboratory tests and vital signs. Analysis is by intention to treat.

Inclusion Criteria:

- have a clinical diagnosis of acute ischemic stroke have CT or MRI brain imaging NIHSS scores:5~22 on the first stage

Exclusion Criteria:

- have other intracranial pathologies are pregnant or nursing have significant drug or alcohol misuse have been in a clinical trial in the past 3 months are unlikely to be available for follow-up have been given thrombolytic therapy or medication forbidden by study protocol have a neurological or psychiatric disease