A gum resin which exudes from the stem of a species of balsam. Tincture of myrrh, like other oleo-resins, is mildly stimulant and disinfectant, and is useful in making mouth washes for the sick.

It has some action as a stomachic, and in certain cases aids the action of purgatives. It is also a uterine stimulant and emmenagogue.