ichthammoln.

1907 Brit. Pharmaceut. Codex 89 Ammonii Ichthosulphonas. Ammonium Ichthosulphonate. Synonyms.—Ichthamol; Ammonium Sulpho-ichthyolate. Ammonium ichthosulphonate consists of the ammonium salts of the sulphonic acids prepared from ichthyol—the oily product of the destructive distillation of a greyish bituminous schist..found in the Karwendel Mountains.

1950 Jrnl. Soc. Chem. Industry 69 107/1 There is confusion in the nomenclature: the British Pharmacopoeia defines ichthammol as ‘the ammonium salts of sulphonic acids of an oily substance, prepared from a bituminous schist, together with ammonium sulphate and water’. The oily substance..is commonly known as ichthyol. The B.P.C. however, states that ichthyol is a proprietary name for a brand of ichthammol. Unna..urged the use of the unsulphonated oil and the restriction of the name ichthyol to this material... When [sulphonated and] neutralized with ammonia, the product was variously known as ammonium ichthyosulphonate, the original name of ichthyol, and finally as ichthammol: this is the ichthammol of the B.P.

1956 D. M. Pillsbury et al. Dermatol. xxvi. 388 In a patient with atopic dermatitis..our own single preference for an initial ointment is one containing 2 to 3 per cent ichthammol in zinc oxide ointment USP.

1967 Martindale's Extra Pharmacopoeia (ed. 25) 1406/2 Ichthammol has occasionally been administered by mouth..as an expectorant and intestinal antiseptic but it is irritant to the gastric mucosa.