Citrate of Potash. 3 KO, C12H5O11. A very deliquescent salt. It may be prepared extemporaneously, by combining Potas. Bicarb, gr. xxv. in solution, with Citric Acid gr. xvij. also in solution, or with fl. oz. ss. of lemon-juice. To be drunk whilst effervescing.

Med. Prop. and Therap. Uses. The Citrate acts mildly on the skin, bowels, and kidneys, and promotes their secretions. It is an excellent refrigerant, soothing or sedative diaphoretic, in fevers, and is less apt to act upon the bowels than the Acetate or Tartrate. It is particularly valuable when the stomach is irritable; and when there is a tendency to diarrhoea, it may be advantageously combined with an opiate, unless otherwise contra-indicated. This, in common with other vegetable salts of Potash, when taken internally, becomes absorbed and decomposed in the system, appearing in the urine in the form of a carbonate. Acting on this principle, the Citrate of Potash is advised by Dr. O. Rees,* in those cases where the urine is acid, and it is desirable to render it alkaline. It is the more especially to be used when it is not desirable to purge the patient. It is a valuable remedy in Uric Acid Gravel, and allied diseases. Dose, gr. xx. - gr. lx.

* Amer. Journ. of Med. Sci., July 1857.

Braithwaite's Retrospect, xliv. p. 216.

Op. cit.

§ Med. Hist, and Reflect, vol. iii. p. 250.

|| Liverpool Med Chir. Journ., July 1857.