Lysoform

A surgical antiseptic represented by liq. formaldehydi saponatus, B.P.

Lysol

A surgical-antiseptic solution represented by liq. cresol. saponatus, B.P.

Malakin, or salicyl-paraphe-netidin, occurs in yellow crystals, insoluble in water. Dose: 8 grains in acute rheumatism, 15 grains for tapeworm.

Maretin is metatolyl carbaminate [C6H4.CH3.(NH)2.CONH2]. White crystals, sparingly soluble in water, and less so in alcohol. A strong antipyretic. Dose: 2 to 5 grains.

Marrubin

The trade-name of a preparation of malt and red bone-marrow. Marrubiin is an active constituent of horehound.

Massolin

A pure culture of Bacillus bulgaricus (Massol), used, by direct application, for the treatment of suppurative conditions, especially in nasal and aural affections.

Meconarcein

The trade-name of a morphine-free opium preparation, said to owe its hypnotic properties to narceine and other constituents of the drug preserved with camphor.

Medinal Soluble

Mono-sodium diethylbarbiturate, a white, crystalline powder. Being soluble 1 in 5 of cold water, is preferred to the acid (veronal) in the same doses.

Meligrin

The trade-name for a mixture of dimethyloxychinizine and methylacetamide, a white powder with bitter taste, having antipyretic and antimigraine properties.

Melioform

A liquid containing 25 per cent. of formaldehyde and 15 per cent. of aluminium acetate. Used as a sterilising-fluid in 1/2 per-cent. solution.

Menthospirin

Capsules of acetyl-salicylic menthol ester, each containing 0.25 gramme, and used for catarrh.

Mercochinol

Mercury oxy-chinolsulphonate. A heavy, yellow powder, slightly soluble in water. Used externally and by injection in syphilis.

Mercuriol

An amalgam of mercury (99.4 per cent.) with aluminium and magnesium. Must not be confused with Mercurol, a brownish-white powder consisting of 10 per cent. of mercury in combination with nu-cleinic acid. A specific in gonorrhoea and other venereal diseases. Used as an injection (1/2 to 2 per cent.), and internally in doses of 1/8 to 3 grains thrice daily.

Mercury Compounds

A considerable number of preparations of mercury have, of recent years, been added to therapeutics. These are generally of a nature intended to have the maximum effect upon the disease and the minimum effect upon the organism. Practically all of them are anti-syphilitic medicines. We give the characteristics and doses in the briefest possible space. Some older preparations are separately mentioned:

Hydrargyri Albuminas

A greyish-white powder containing 0.4 per cent. of the metal. Used as dusting-powder, 1 grain to the drachm.

Hydrargyri Amido-propionas,- White crystals, soluble in water. Dose:1/20 to 1/10 grain, in pill.

Hydrargyri Asparaginas

Yellowish powder, insoluble in water. Dose: 1/10 to 1/5 grain, in pill or sub-cutaneously.