The drug goes to work within 30 to 40 seconds by paralyzing the small muscles of the fingers, toes, and eyes, and then moves into the the intercostal muscles and the diaphragm.

• 药物将在30-40秒内产生效力，首先是麻痹手指、脚趾以及眼睛的少量的肌肉。接着又深入到肋间肌肉及横膈膜中。