Argentum cyanatum

Natural History.
      Silver Cyanide. Ag. CON. Trituration.

Clinical.
      Angina pectoris.
      Asthma.
      Cough.
      Cramps.
      Oesophagus, spasms of.

Characteristics.
      As a result of inhaling fumes while silvering with "Argentine" a woman experienced some very severe poisoning symptoms, among which the most prominent were in the throat: scraping in throat.
      Sense of constriction and burning.
      Violent pain in supra-sternal fossa and under manubrium sterni every time she turned to one side.
      Suffocative attack.
      Respiration difficult and short.
      Constant dry, spasmodic cough, allowing her to articulate but one word at a time.
      Painful cramps in feet.
      The face and tongue were very red.