Extractum Opii Liquidum.—Liquid Extract of Opium.
Related entry: Opium (U. S. P.)—Opium
Preparation.—The British Pharmacopoeia directs the preparation of this fluid extract of opium as follows: "Take of extract of opium 1 ounce (av.), distilled water 16 fluid ounces, rectified spirit 4 fluid ounces. Macerate the extract of opium in the water for an hour, stirring frequently; then add the spirit and filter. The product should measure 1 pint (Imp). It contains 22 grains of extract of opium, nearly, in 1 fluid ounce. Sp. gr., from 0.985 to 0.995"—(Br. Ph.). In point of non-nauseating qualities this preparation is superior to other liquid preparations of opium, except the deodorized tincture of opium. This preparation contains those principles of opium soluble in water, and is preserved by the presence of the alcohol, which proportion, according to some pharmacists, should be somewhat increased to give it greater stability.
Medical Uses and Dosage.—Uses, same as Opium. Dose, 10 to 30 minims.
