Mixture, Senega, with Ammonia. (St Th. H.) Syn. Mistura senegæ cum ammonia. Prep. Infusion of senega, 1 oz.; carbonate of ammonia, 4 gr. For 1 dose.
Mixture, Sen′na (Compound). Syn. Black draught, Abernethy’s d., Cathartic Mixture; Mistura sennæ composita (B. P.), L. Prep. 1. Infusion of senna, 3⁄4 pint; tincture of senna, 11⁄2 fl. oz.; Epsom salts, 4 oz.; carbonate of ammonia, 1⁄2 dr.; sugar, 3 oz.; agitate until the solids are dissolved.
2. Senna, 13 oz.; boiling water, 2 quarts; digest for 4 hours in a hot place, then press out the liquor in a tincture press, and add, of compound tincture of senna, 3⁄4 pint; Epsom salts, 1 lb.
3. East India senna, 2 lbs.; boiling water, 9 quarts; tincture of senna and Epsom salts, of each 31⁄4 lbs.; as the last.
4. Senna, 8 lbs.; boiling water, 9 galls.; Epsom salts, 16 lbs.; tincture of senna, 11⁄2 galls.; treacle and colouring, of each 1 quart.
5. (Guy’s Hosp.) Senna and mint, of each 11⁄4 oz. (say 11⁄2 oz.); boiling water, 1 quart; Epsom salts, 71⁄2 oz. (say 1⁄2 lb.).
6. (Redwood.) Infusion of senna, 18 oz.; tincture of senna, 3 oz.; sulphate of magnesia, 6 oz.; extract of liquorice and spirit of sal volatile, of each 3⁄4 oz.; oil of cloves, 6 drops.
7. (B. P.) Infusion of senna, 14; sulphate of magnesia, 4; extract of liquorice, 1⁄2; tincture of senna, 21⁄2; compound tincture of cardamoms, 11⁄4: dissolve and mix.—Dose, 1 to 11⁄2 oz.
Obs. As the above mixture contains very little spirit, and from its great consumption being made in large quantities at a time, it frequently spoils before the whole is sold especially in hot weather. To avoid this, 11⁄2 dr. of cloves, and 3 dr. of mustard seed, both bruised, may be added to every gall. of the strained liquor at the same time with the salts, spirit, and colouring, after which it must be shaken up repeatedly for a few days, and then allowed to repose for a few days more when it will become quite clear. It may be filtered through a flannel bag, but there is much loss and delay, owing to the consistence of the liquid. It is purgative in doses of 1 to 11⁄2 fl. oz.
It is a singular circumstance, that although an enormous quantity of this preparation is consumed in these countries, there is no standard formula for it in the British Pharmacopœias. See Mixture, Aperient, &c.