镇痛剂

She was drugged up to the eyeballs, but still in a lot of pain.

注射了大量镇痛剂，可还是很痛。

Ketamine is a sedative-hypnotic amnestic and a potent analgesic that can be injected intravenously or intramuscularly.

氯胺酮是一种镇静催眠和强有力的镇痛剂，可肌或静脉注射。