Principles of Pharmacy Practice and Common Systems of Measurement
Explore the principles of pharmacy practice, including the apothecaries and avoirdupois systems of measurement. Learn about apothecaries fluid and weight measures, as well as intersystem conversion methods. Understand how to convert between different measurement systems for accurate pharmaceutical formulations.
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Principles of pharmacy practice Lec 1 Lecturer Dr Athmar Dhahir Habeeb Al-Shohani PhD in industrial pharmacy and pharmaceutical formulations athmar1978@uomustansiriyah.edu.iq athmar1978@yahoo.com athmar.habeeb.12@ucl.ac.uk
Common Intersystem Conversion Systems of Measurement and Common systems of measurement are divided into two types: 1. The apothecaries system of measurement It is the traditional system of pharmacy, and although it is now largely of historic significance, components of this system are occasionally found on prescriptions
2.The avoirdupois system is the common system of commerce, employed along with the SI in the United States. It is through this system that items are purchased and sold by the ounce and pound. Avoirdupois Measure of Weight
Only one denomination has a value common to the apothecaries and avoirdupois measuring weight: the denominations bearing different values. If we want to change from one system to another first we need to change to grain then to the other system. Examples: systems The name of other have grain. same the
Intersystem Conversion On occasion it may be necessary to translate a weight or measurement from units of one system to units of another system. This translation is called conversion. The translation of a denomination of one system to that of another system requires a conversion factor or conversion equivalent.
