The Modern Pharmacy Laboratory Series, Part 3 - 0513-0000-17-200-H04-P

The Modern Pharmacy Laboratory Series, Part 3

Compounding Calculations

by Saira Ahmed, PharmD
(4.5 / 0 ratings )

This course is credentialed for:
Pharmacy (1.00 Contact Hr)

Price: $15.00
CE-PRO Price: $7.50


In December of 2014, 14 employees, including pharmacists and co-founders, of the New England Compounding Center were arrested and charged with second-degree murder due to a deadly outbreak of meningitis caused by contaminated compounds. This devastating event resulted in dozens of deaths and illness in hundreds of others. Pharmacy law in the state of Massachusetts has since adapted a requirement specific to compounding for pharmacists and technicians but the repercussions of this event resonate deeply with providers and patients alike everywhere. This module is designed to review the mathematical and chemical principles of pharmacy compounding.


The goal of this program is to review key principles necessary for accurately calculating quantities as necessary to formulate various common pharmaceutical compounds. By participating in this activity, individuals that do not routinely compound will be able to understand some of the mathematical and chemical concepts that are involved in interpreting and formulating pharmaceutical compounds. After studying the information presented here, you will be able to:
  • Identify key mathematic principles commonly used in various pharmaceutical calculations, such as algebraic proportions
  • Integrate knowledge of chemical and scientific properties into pharmaceutical calculations as appropriate
  • Demonstrate the ability to calculate the necessary amounts of both active and inactive ingredients accurately for the following pharmaceutical preparations:
    • Ointments and creams
    • Capsules
    • Suppositories
    • Suspensions and solutions

Approval Information
This course is intended for pharmacists
Jointly Accredited Provider logoIn support of improving patient care, OnCourse Learning is jointly accredited by the Accreditation Council for Continuing Medical Education (ACCME), the Accreditation Council for Pharmacy Education (ACPE), and the American Nurses Credentialing Center (ANCC), to provide continuing education for the healthcare team.
OnCourse Learning is also approved by the Florida Board of Pharmacy (provider # 50-1489).
Type of Activity: Knowledge
Initial Release Date: 04/18/2017; Planned Expiration Date: 04/18/2020

Course Originally Released on: 3/31/2017
Date of Most Recent Review: 3/31/2017
Course Termination/Update Date: 4/18/2020

Unless stated above, the planners and authors of this course have declared no relevant conflicts of interest that relate to this educational activity. OnCourse Learning guarantees this educational activity is free from bias.

Please see CE Course Instructions to learn how to earn CE credit for this module.


For Florida professionals:

This course completion will be electronically reported to CE Broker as required per Florida Statute 456.025(7). Click here to view your CE Broker transcript and check the status of your CE requirements with a FREE 7-day CE Broker trial subscription. It may take up to 24 hours for the course to appear on your CE Broker transcript.

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Katherine D - Fabius, NY  ·  Mar 30, 2018
If you need a quick recap of the very basics, this is a good course.
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KEVIN T - Boston, MA  ·  Aug 29, 2017
Good calculation practice
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RICHARD C - Palos Park, IL  ·  Aug 24, 2017
Some errors, some mis pronounciations, some poor information. When filling capsules, you ended with the volume occupied. You stated 0.5, but the screen showed 0.05. The Screen was correct, but the audio portion was incorrect. When you were describing making indomethacin capsules, you asid to "throw out" the rest. Perhaps "discard the extra in an appropriate waste container." And early on, you repeatedly used the word "tared" but pronounced it to rhyme with "card," when it should be pronounced to rhyme with "paired." Later on, you pronounced it correctly. On the screen where you showed several ointments combined you asked the question of how much corticosteroid would have to be added and showed a calculation of the sum of the corticosteroid from the ointments to total 56.3 Gm. The calculation needs to be finished, so 120 - 56.3 = 63.7 mg of additional corticosteroid. Sorry to be picky, but 55 years in pharmacy, and the last 30+ in pediatric ICU's have honed my anal retentiveness.
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Price: $15.00
CE-PRO Price: $7.50