Aids to practical dispensing / by C.J.S. Thompson.

  • Thompson, C. J. S. (Charles John Samuel), 1862-1943.
Date:
1902
Catalogue details

Licence: In copyright

Credit: Aids to practical dispensing / by C.J.S. Thompson. Source: Wellcome Collection.

    18/108
    matter is one that always requires tact and discretion in dealing with, and it is in this manner the pharmacist in his capacity of skilled dispenser, exercises an important check between the patient and the medical man. The following errors have been met with in actual experience : Liq. ammon. acet. cone. .. .. si. Pilocarpin. nit. .. .. .. .. grs. viii. Liq. morphiae mur. .. .. .. Si.ss. Syr. simplic. .. .. .. .. §ss. Aquae .. .. .. .. ad § viii. Misce. Fiat mist. Capiat ii. ter horis. It will be noted the dose of pilocarpine nitrate is un- usually large, and the prescriber, on being communicated with, reduced it to \ grain, and the dispenser was thanked for the care exercised. 3^! Liq. ammon. acet %\. Ext. cannabis indie Si. Syr. aurant Si. Aquae ad Siv. Misce. Fiat mist. Capiat Si. ter die. As the maximum dose of extract, cannabis indie, is i grain, the quantity ordered—viz., 15 grains three times a day—appeared somewhat alarming. On communicating with the prescriber it was discovered he had written ‘ ext.’ for ‘tinct.,5 and the correction being made, the tincture was dispensed. In cases where large doses are ordered, not only the actual quantity, but the frequency of its administration should be considered. It is an excellent rule for the dis- penser when measuring any powerful poison, such as acid, hydrocyan., to have the quantity checked by someone else before adding it to the mixture. The dispenser should make a habit of rinsing out a measure when he has finished using it. The student can never err on the side of safety. Some medical men have a habit of employing the sign denoting the scruple when ordering liquids, as, for example, acid, hydrocyan. 5i, or liq. strychinae ^ss, which, of course, is dispensed as 20 and 10 minims respectively. The sign Oj. represents 20 ounces, and Oss. equals ro ounces. In cases where minute doses, such as grain or grain of a