But, though ketamine’s promise has stirred excitement among clinicians and neuroscientists, it has also sparked controversy, owing to the drug’s potentially harmful side effects. Depending on the dose, a patient may experience altered physical, spatial, and temporal states; larger quantities may induce hallucinations and dissolution of the self.
但是，尽管克他命的疗效让临床医生和神经科学家兴奋不已，却也引起了激烈的争议，因为这种药物可能有严重的副作用。根据剂量不同，患者的身体、空间和时间感可能会发生改变，较大的剂量可能造成幻觉和自体分解（dissolution of the self）。