A condition of stupor (see under UNCONSCIOUSNESS), resembling sleep, that is usually caused by a drug. It may also occur as a result of liver or kidney failure which causes URAEMIA. The affected person has significantly reduced awareness and is hard to arouse. Treatment is of the underlying cause and the normal precautions taken when caring for an unconscious or semiconscious person. (See APPENDIX 1: BASIC FIRST AID.)