There has been a striking elimination of morphine preparations from the official lists within the past ten years, coincident with the steady movement of the medical profession and intelligent laity to restrict the unauthorized purchase of narcotic drugs.

Morphinae Sulphas. Morphine Sulphate

Average dose, gr. 1/8-0.008 Gm.

Morphinae Hydrochloridum. Morphine Hydrochloride. Morphine Chloride

Average dose, gr. 1/8-0.008 Gm.

Diacetylmorphina. Diacetylmorphine

An alkaloid prepared from morphine by acetylization. Average dose, gr. 1/20-0.003 Gm.

Diacetylmorphinae Hydrochloridum. Diacetylmorphine Hydrochloride

Average dose, gr. 1/20-0.003 Gm.

Pulvis Morphinae Compositus. Not official. Compound Powder of Morphine. (Tully's Powder.)

With the morphine are combined camphor, glycyr-rhiza, and calcium carbonate.

Tinctura Chloroformi Et Morphinae. Not Official. Tincture Of Chloroform And Morphine

Contains a small amount of morphine, with ether, alcohol, oil of peppermint, liquorice, and syrup. Average dose,  viii-0.5 mils.

Magendie's Solution Of Morphine

This preparation is not official; it contains gr. xvi. of morphine to ℥ i., and it is used almost entirely hypo-dermically. If it is old, or exposed to the air, it develops a fungus which unfits it for use. It is not irritating to the tissues.

The analgesic and narcotic action of morphine is quickly manifested, coming on usually within half an hour after an ordinary dose, sometimes in a few moments. The length of time during which these effects last varies much with the condition of the patient, the degree of pain present, and the extent of toleration of the drug which has been established. The average may be put at four or five hours.