英语语法分析

Hydergine used for positive control drug.

用喜得镇作阳性对照药物。

Randomized controlled trial: 456 eligible subjects have been collected, 343 in Naomaitai capsule group and 113 in hydergine tablet group.

随机对照试验：共完成合格病例456例，脑脉泰组343例，喜得镇组113例。