[Investigation on preparation procedure for compound shenglin oral]

The optimum preparation procedure for compound Shenglin oral was studied by orthogonal test (including 5 factors: water-adding amount, decocting time, decocting times, concentrating scale, alcohol-precipitation concentration with 3 levels every factor). As a result, A1B1C3D1E1 is the procedure of choice: 24 times of water-adding amount, decocting 3 times, 1.5 hours of total decocting time, 0.8 g/ml of concentrating scale and 36% of alcohol-precipitation concentration.