Diaphoretics are medicines which increase perspiration. Those which occasion profuse sweating are termed Sudorifics. The two terms indicate different degrees of the same operation. They constitute an important element in domestic practice, on account of the salutary effects which generally follow their action. Their operation is favored by warmth externally, and warm drinks, when they are not given in hot infusion.

Pleurisy-root (Asclepias Tuberosa), is also known as White-root, and Butterfly-weed. It is a valuable remedy, well adapted to break up inflammations and disease of the chest. Dose—Of infusion, one to two ounces; of fluid extract, one-fourth to one-half teaspoonful; of the concentrated principle, Asclepin, one to three grains.

Saffron (Crocus Sativus). Golden Saffron. Dose—Of infusion (one drachm to a pint of water), one to two ounces.

Sage (Salvia Officinalis). The warm infusion drunk freely is a valuable, domestic diaphoretic.

Virginia Snake-root (Aristolochia Serpentaria), is an efficient agent. Dose—Of infusion, one to two ounces; of tincture, one-fourth to one teaspoonful; of fluid extract, one-fourth to one-half teaspoonful.

Jaborandi (Pilocarpus Pinnatus). Jaborandi increases the flow of saliva, causes profuse perspiration, and lowers the temperature of the body. In doses of from twenty to sixty drops of the fluid extract, administered in a cup of warm water or herb-tea on going to bed, we have found it very effectual for breaking up recent colds. We have also found it valuable in whooping-cough, in doses of from three to ten drops, according to the age of the child, given three or four times a day. The fluid extract may be obtained at almost any drug-store.

May-Weed (Maruta Cotula), is also known as Wild Chamomile, and Dog-fennel. It is not much used, though it is a powerful diaphoretic. Dose—Of infusion, one to two ounces.