The science and art of prescribing / by E. H. Colbeck and Arnold Chaplin.

  • Colbeck, Edmund Henry, 1865-
Date:
1906
Catalogue details

Licence: In copyright

Credit: The science and art of prescribing / by E. H. Colbeck and Arnold Chaplin. Source: Wellcome Collection.

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    factor in the therapeutical properties of drugs still offers a wide field for investigation. Thus ipecac- uanha in small doses acts as an expectorant, in large doses as an emetic. Tartrate of potassium exerts an antacid and diuretic action in small doses (gr. xx.—xl].) and a purgative action in large doses (31.—311.). Again, carbonate of ammonia is used in small doses as a stimulant, in large doses as an emetic. THE FREQUENCY, DURATION, AND TIME OF ADMINISTRATION OF DRUGS. The frequency, duration and time of administra- tion of drugs must be regulated by the morbid condition that obtains and by the effect that is desired, having due regard to the important factors of the accumulation and toleration of drugs. COMBINATION OF DRUGS. In combining drugs the question of the chemical, pharmaceutical and therapeutical relations have to be borne in mind. The subject will be fully dealt with under the heading of incompatibility. THE ANALYSIS OF A PRESCRIPTION. A classical presciption is composed of five parts, WAZ. (1) The superscription, which consists of the sign RK, an abbreviation for ‘‘ recipe,”’ the impera- tive mood of the verb “ recipio.”’ (2) The inscription, which includes the names and doses of the drugs that are prescribed. These are usually arranged under four heads :— (i.) The basis or principal ingredient.
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