Gastrodin injection preparation and preparation method

The invention discloses a gastrodin injection preparation, which comprises the following components by weight: 5-10% of gastrodin, 0.01-0.1% of metal ion complexing agent, 0.6-1.2% of stabilizing agent, 1-2.5% of buffer and the balance of injection water. The invention also provides a preparation method of the gastrodin injection preparation. The gastrodin injection of the present invention can effectively stop the addition of visible foreign matter during a placing process of the gastrodin injection, the defective index of the visible foreign matter in a solution is reduced, the white point and white block precipitation are not generated, the expectation effect can be reached, thereby the treatment effect of gastrodin can be fully performed. The gastrodin injection preparation has the advantages of simple prescription, good stability, high clear degree, safe clinical usage, small adverse reaction and convenient industrial large batch production.