Kalmia latifolia - Mountain laurel
"CONSTITUENTS: Andromedotoxin, arbutin, tannin.
PREPARATIONS: Specific Kalmia: Dose, from one-half to five minims.
Therapy: Kalmia exercises a sedative influence over the heart, controls the pulse beat without depression. It is markedly alterative but must not be pushed because of this slowing influence. Homeopathists give it in cardiac hypertrophy, and for painful rheumatic affections, for facial neuralgia, for tobacco heart, and it will probably act well in rheumatic endocarditis.
It will be found of service in inflammatory diseases, also in hypertrophy of the heart with palpitation, diarrhea and dysentery, rheumatism, chronic inflammations, with atonicity, neuralgia, active hemorrhages, threatened abortion from syphilitic taint, active menorrhagia, pain in the limbs and back during menstruation, jaundice, and also in scleritis, with pain in turning the eyes, and in ophthalmia."
(Finley Ellingwood: The American Materia Medica, Therapeutics and Pharmacognosy, 1915)