ANTIDOTES, remedies for counteracting poisons. The fol lowing antidotes for special poisons are sometimes given in case of emergency usually following and followed by an emetic, and whenever possible under the supervision of a physician. In gen eral, antidotes for acid poisons are : ammonia (a teaspoonful to half a pint of water) or lime-water, plaster, magnesia or chalk. For alkali poisons, antidotes are vinegar, dilute acetic acid or lemon juice. For an unidentified poison, the general rule is to give eggs, salad oil (except in phosphorus poisoning), flour and water or lime-water (except for alkaline poisons), preceded by large draughts of water or milk, and to induce vomiting by placing the finger in the throat or by an emetic. Kitchen soap and water may be used several times repeated. The antidote is only one part of the treatment which may include first an emetic and is often followed by stimulants such as strong black coffee.