_Uses._—Vomiting of pregnancy, seasickness. _Dose._—2–10 gr. several times daily. =Charcoal.= Administered in tablet form or as a powder between two slices of buttered bread. _Uses._—Acid stomach. Vomiting of pregnancy. =Chinosol.= Nonpoisonous, nonirritating and odorless. Antiseptic deodorant, styptic and analgesic. Dissolves instead of coagulates secretions. _Uses._—Antiseptic solutions for hands and sponges, deodorizing wash for vagina post partum, intrauterine douche, wash for gonorrhœa and cystitis. _Dose._—For douche or hand solution 1:1000 or 1:5000. For dusting powder, 1 part to 10 or 20 of starch, talcum, boric acid, or bismuth subnitrate. Chinosol will corrode unplated steel. It may be mixed with salt, but not with soap. =Choral Hydrate.= White crystal masses. Pungent in odor and taste. Hypnotic, antispasmodic, antiseptic and analgesic. _Uses._—Insomnia, eclampsia, convulsions, and to restrain secretion of milk. _Dose._—By mouth, 10–30 gr. By rectum, not to exceed 60 gr. In infants 1–2 gr. by rectum in an ounce of water. =Chymogen.= A preparation of rennin (10%) made by Armour & Company. =Coagulen Ciba.= A physiological nontoxic styptic, prepared from the natural coagulants of the blood. A 10% solution in water will hasten the beginning and end of coagulation. May be applied to bleeding surfaces directly, or given under the skin, into the muscle, or into a vein. 3½% to 5% solution in distilled water, should be sterilized by boiling 2–3 minutes. Do not filter. Inject. =Cocaine Hydrochlorate.= Anæsthetic, sedative, anodyne, anti-pruritic. _Uses._—Vomiting of pregnancy, with _caution_. _Dose._—Internally ½–1½ gr. Externally a 4%–10% solution in water. =Codeine.= Alkaloid of opium. Less narcotic than morphine. _Uses._—After-pains and pain of over-distended breasts. _Dose._-¼–1½ gr. by mouth. ¼–¾ gr. hypodermically. =Compound Licorice Powder.= _See Senna._ =Condylomata.= _Use_— ℞ Acid. Salicyl. gr. x Acid Boric. gr. xxx Calomel. ʒ i M. Sig.: Apply twice daily. =Digitalis.= Cardiac tonic. Diuretic. Stimulant. _Uses._—Weak heart. Syncope. Collapse. _Dose._—For adult: of the tincture, 5–15 ♏︎, fl. ext. 1–3 ♏︎, ext. gr. 1/6½. _Digipuratum._ A preparation of digitalis from which the inactive substances have been removed. It is used in the same conditions as digitalis.