Colorless or white, odorless crystals or powder. Very slightly soluble in water (1:3,340) and soluble in alcohol (1:210).
ACTION AND USES: Central analgesic, hypnotic and respiratory sedative and depressant; also constipative. Is only slightly depressant to the circulation. Eliminated mainly through the bowels. Should not be used to control cough if this is associated with marked expectoration. Its habit-forming power should be constantly remembered.
=*Morphinae Hydrochloridum (Morph. Hydrochl.), Morphine Hydrochloride, U.S.P.= (Morphine Chloride).
White, odorless needles, masses or powder. Soluble in water (1:17.5) and in alcohol (1:52).
_Syrupus Morphinae et Acaciae (Syr. Morph. et Acac.), Syrup of Morphine and Acacia, N.F._ (Syrupus Pectoralis, N.F. III, Jackson's Pectoral Syrup).--Morphine hydrochloride (0.055%) flavored with oil of sassafras in syrup of acacia.
=*Morphinae Sulphas (Morph. Sulph.), Morphine Sulphate, U.S.P.=--
White, odorless crystals or masses. Soluble in water (1:15.2) and slightly soluble in alcohol (1:565).
_Syrupus Pini Strobi Compositus cum Morphina (Syr. Pin. Strob. c. Morph.), Compound Syrup of White Pine with Morphine, N.F._ (Syrupus Pini Strobi Compositus, N.F. III).--Morphine sulphate (0.04%) in compound syrup of white pine. Absolute alcohol content about 20 per cent.
USES: Objectionable expectorant mixture containing morphine.
=Moschus (Mosch.), Musk, U.S.P.= (Tonquin Musk, Deer Musk).--A dried animal secretion.
_Tinctura Moschi (Tr. Mosch.), Tincture of Musk, U.S.P._--Musk (5%) in diluted alcohol. Absolute alcohol content about 48 per cent.
=MUCILAGINES, MUCILAGES.=--Aqueous solutions of gums or the mucilaginous principles of vegetable substances. For the various mucilages, see under the names of the respective drugs.
=MULLAE, MULLS.=--Ointments of high fusing points spread on soft muslin or "mull." For the various mulls, see under the names of the respective active constituents.
=Myrica (Myrica), Bayberry Bark, N.F.=--Bark of the root.
ACTION AND USES: Formerly recommended as digestive, nutritive and nervous stimulant. No scientific indications for its use.
_Pulvis Myricae Compositus (Pulv. Myric. Co.), Compound Powder of Bayberry, N.F._ (Composition Powder).--Bayberry bark (60%), Jamaica ginger (30%), capsicum and clove.