Mithridate

Cordial and anodyne, 1/2 oz. to 1 oz. may be given in flatulent colic, but would be injurious in inflammation.

Mullein

An infusion of the flowers is given as a demulcent for the same purpose as linseed tea. A decoction of the leaves is used in emollient fomentations and cataplasms.

Muriatic (or Hydrochloric) Acid

Spirit of Salt. Tonic and antiseptic; but principally used to dissolve calcareous concretions in the bladder. It has been used in the pestilent epidemics of cattle. Dose for a horse, 1 1/2 to 2 or 3 dr., in plenty of water, twice a day. Externally as a caustic, strongly recommended by Youatt.

Muriate Of Ammonia

Chloride of Ammonium, Sal Ammoniac, Hydrochlorate of Ammonia. Formerly used in influenza or epidemic catarrh. It is said also to have proved useful in farcy, and perhaps deserves trial in other chronic diseases. It renders the blood more fluid. Its use requires caution. 2 oz. produced inflammation of the mucous membrane of a horse; 2 dr. killed a dog, and 1/2 dr. a rabbit. M. Moiroud states the dose to be from 2 to 8 dr. for horses and cattle, and for small animals from a scruple to a drachm, largely diluted. Externally it is a frequent ingredient in discutient lotions to splints, old strains, bruises, indolent tumours, etc, in horses and cattle. It is also employed as an embrocation to sore teats.

Muriate of Antimony

Chloride, Perchloride. See Antimony, Butter of.

Muriate of Barytes

Muriate of Baryta. Chloride of Barium. Poisonous; in small doses, alterative. It has been tried in glanders and farcy, with the usual ill success. Dose, 1/2 dr. in milk.

Muriate of Copper

Chloride of Copper. Used externally only, as a mild caustic.

Muriate of Lime

Chloride of Calcium. Alterative and resolvent, in glandular diseases; but rarely used in veterinary practice. It has been proposed in glanders and farcy. In an overdose it is poisonous. We have not met with any specific statement of doses. 3 1/2 drachms killed a dog.

Muriate of Soda

Chloride of Sodium. See Salt, common.

Mustard

Stimulant; but little used as an internal remedy. Flour of mustard, with or without vinegar, is applied externally as a rubefacient, to relieve internal inflammation.

Mylabris

Chinese Blistering Fly. Its vesicant properties are due to the presence of cantharadin. Physiological effects the same as cantharides, except that it is said not to affect the kidneys when topically applied.

Myrrh

Tonic, expectorant, antiseptic, and balsamic. From 1 to 3 dr. to a horse, in chronic cough. To cattle, 2 to 4 dr., or more. The tincture is used for ulcers of the mouth in all animals, and to indolent sores.

Naphtha

Rectified wood naphtha is used instead of spirit of wine, for making tincture of myrrh and aloes. This spirit may be given also in 2-oz. doses internally, forming an admirable stimulant and diapboretic.

Naphthalin

A stimulating expectorant. It possesses many of the properties of camphor, and a solution of it in spirit may be substituted for camphorated spirit. With oils and lard it may be used in the form of liniment and ointment. The ointment is substituted for tar ointment.