Chloroform

Chloroform was an organic compound. According to the Eighth Doctor, an American colonel wanted anyone buried without an autopsy being performed to have a bottle of chloroform interred with them so that if they revived suddenly they could commit suicide painlessly and quickly. Ian Stratford commented that such things would never happen in England. (EDA: The Banquo Legacy) Time Lords could be rendered unconscious by chloroform. (NA: Just War)