Antipyrine is known from the poisonous effects it has produced in old-school
practice. Many fatal cases have been recorded, and there can be little doubt that its injudicious
use has determined a fatal issue in many cases that have remained unrecorded. Its action is very
like that of Antifebrin in producing collapse, but it has more effect on the skin, causing scarlet
rash and cedema. A young lady patient of mine who took Antipyrin on her own account,
whenever she thought she might be going to have a headache, developed intense dysmenorrhcea
(to which she was not subject), with depression. This was only removed after she had
discontinued the drug. Later on she took Phenacetin, with the result that an eruption of erythema
appeared on both cheeks, which peeled after a few days, and recurred persistently. It would seem
from the above that the drug is homceopathic to some forms, at least, of neuralgia. One patient
had Cheyne-Stokes respiration. Erythema appears first on face and arms, last on legs. Hansen
mentions its use in enuresis and epistaxis. > Hot drinks.