Antispasmodics are a class of remedies which relieve cramps, convulsions, and spasms, and are closely allied to nervines. Indeed some authors class them together. The following are a few of the most important antispasmodics:
Assafetida (Assafetida Ferula). This is a powerful antispasmodic. It is employed in hysteria, hypochondria, convulsions, and spasms, when unaccompanied by inflammation. Dose—Of the gum or powder, from three to ten grains, usually administered in the form of a pill; of the tincture, from one-half to one teaspoonful.
Yellow Jessamine (Gelseminum Sempervirens). The root is the part used. This is a valuable remedy in various diseases when associated with restlessness and a determination of the blood to the brain; also in the neuralgia. Dose—Of the fluid extract, three to eight drops; of the concentrated principle, Gelsemin, one-fourth to one grain. The use of this drug by non-professional persons should be attended with great caution.
Valerian (Valeriana Officinalis). The root is the part used. Valerian is an effective remedy in cases of nervousness and restlessness. Dose—Of the infusion, (one-half ounce to a pint of water) one-half ounce; of the tincture, one-half to two tablespoonfuls; of the ammoniated tincture of valerian, from one-half to two teaspoonfuls in sweetened water or milk; of the valerianate of ammonia, one-half to three grains.
Yellow Lady's Slipper (Cypripedium Pubescens). The root is the part used. This is a useful remedy in hysteria, chorea, and all cases of irritability. Dose—Of the powder, fifteen to thirty grains; of the infusion, one ounce; of the fluid extract, fifteen to thirty drops; of the concentrated principle, Cypripedin, one-half to two grains.
Wild Yam (Dioscorea Villosa). The root is the part used. This is a powerful antispasmodic, and has been successfully used in bilious colic, nausea, and spasm of the bowels. Dose—Of the infusion (two ounces to a pint of water), one to two ounces; of the fluid extract, five to fifteen drops; of the concentrated principle, Dioscorein, one-half to one grain.
High Cranberry (Viburnum Opulus.) The bark is the part used. It is also known as Cramp Bark. This is a powerful antispasmodic, and is effective in relaxing spasms of all kinds. It is a valuable agent in threatened abortion. Dose—Of the infusion, one-half to one ounce; of the fluid extract, one-half to one teaspoonful; of the concentrated principle, Viburnin, one-half to two grains. These doses may be increased if necessary.