In the 1920s chlorine gas was marketed as a treatment for cold, flu, whooping cough, etc. The patient would break open the Kil-a-cold chlorine "bomb" in a closed room. The 0.35g of chlorine gas would permeate the air the patient was breathing. Ads said their cold symptoms would disappear within an hour. Chlorine gas is toxic at high doses and had been used by the Germans in WWI before this treatment was marketed.
Traité complet d'anatomie de l'homme (1866-1871), 2nd ed. by Bourgery, Bernard, and Jacob This instrument (used prior to the discovery of anesthesia), initially caught the stone with a claw, drilled it to smaller pieces, and then removed the smaller fragments by the same claw
Also called ‘tincture of opium’, laudanum was used primarily as a sedative and painkiller. Girls as young as fourteen were prescribed laudanum. Even infants were spoon fed laudanum. Physicians cited its benefits as not only helping to calm nerves and quiet the disposition, it was prescribed as an aid for childbirth, menstruation and menopause. If one was not careful, taken in large doses, it caused unconsciousness. Many women, particularly prostitutes, used laudanum to commit suicid