From serum of blood that has been subjected to poison of diphtheria.—Limpid liq., generally preserved with 1/2% carbolic acid or other preservative.—Dose (children): Prophylactic, 200—250 antitoxic units; ordinary cases, 600—1000 units; severe cases (or those seen late, or of nasal or laryngeal type), 1500—3000 units; given hypodermically, and repeated in about 8 hours if necessary. Adults receive twice as much. Caution: The various brands differ in strength.

Apiol, Green, Merck.—Fluid.

Greenish, oily liq.—Sol. in alcohol, ether.—Emmenagogue, Antiperiodic.—Uses: Dysmenorrhea, malaria.—Dose: 5—10 ♏, 2 or 3 t. daily, in capsules; in malaria 15—30 ♏.

Apiollne.

Not completely defined.—(Stated: "True active principle of parsley, in 4-min. capsules.—Emmenagogue.—Dose: 2 or 3 caps., with meals.")

Apocodeine Hydrochlorate Merck.

Yellow-gray, very hygroscopic powd.—Sol. in water.—Expectorant, Sedative Hypnotic.—Uses: Chronic bronchitis, and other bronchial affections. Acts like codeine, but weaker; induces large secretion of saliva, and accelerates peristalsis.—Dose: 3—4 grn. daily, in pills.—Injection: 1/6—1/2 grn., in 2% aqueous solut.

Apocynum—U.S.P.

Canadian Hemp.—Diuretic.—Dose: 5—20 grn.—Preparation: F.E. (1:1).

Apomorphine Hydrochlorate Merck.—U.S.P.—Cryst. or Amorphous.