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Chapter-30 Calculation of Drug Doses and Dilutions

BOOK TITLE: Practical Manual of Pharmacology for Medical Students

Author
1. Badyal Dinesh
ISBN
9789352702411
DOI
10.5005/jp/books/18065_31
Edition
2/e
Publishing Year
2018
Pages
7
Author Affiliations
1. Christian Medical College, Ludhiana, Punjab, India
Chapter keywords
Drug dose, dilution, standard dose, titrated dose, target level dose, fixed-dose combination, FDC, metric system

Abstract

Posology is the science of dosage. It deals with the amount of drug necessary to produce a desired physiological, therapeutic, or prophylactic effect. Dose is the appropriate amount of a drug required to produce a certain degree of response in a patient given at a time and which can be repeated at an appropriate interval to produce a desired therapeutic effect or it is quantity of drug which is sufficient to diagnose, prevent or cure a disease. Dosage is schedule of dose, frequency and duration of administration of drug. Dose may be standard dose, regulated or titrated dose, and target level dose. Fixed-dose combinations (FDC), ratio-proportions, conversion within the metric system, and calculate drop rate, and liquids are also discussed in this chapter.

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