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Pharmaceutical Calculations. Lab Alligation Medial and Alligation Alternate. Alligation is an arithmetical method of solving problems that involves the. Alligation is one of the simple and illustrative methods in pharmaceutical calculations for the pharmacy technicians. Dilution is a simple method. The pharmacy has in stock 3% coal tar ointment and coal tar. Remember, a pure product has Using alligation, calculate the amount of each available product.

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This is an example of a problem that involves repeated dilutions of a given solution. The solution is just to find the weighted average by composition:. The ratio of the quantity of wine now left in cask to that of water is Who do you need to go to in the pharmacy to see that cqlculations order is correctly processed? How much wine did the cask hold originally? Estimate the final answer before beginning the work. Pharamcy share this article, if you like.

Sign in via OpenAthens. This video demonstrates key steps in performing calculations using the alligation method and provides pertinent examples. Alligation is an old and practical method of solving arithmetic problems related to mixtures of ingredients. This article incorporates text from a publication now in the public pharmact It is often more practical to dilute a known strength preparation than it would be to compound an entire preparation.

The term alligation has its origin in Latin, alligatio which means the art of attaching and therefore refers to lines drawn during calculation to bind quantities together. Please enter Password Forgot Username?


Pharmacy Math Alligation Example 2

This equation proves the line diagram allwgation of alligation is correct and most suitable in such calculation. The desired strength is the strength of the preparation that one wishes to make.

Alligation alternate is more complicated and involves organizing the ingredients into high and low pairs which are then traded off. The hospital order says merely the following:. The Coke allegaton grams of sugar per liter, the Sprite has grams of sugar per liter, and the orange soda has grams of sugar per liter.

Alligation method is used to calculate: About MyAccess If your institution subscribes to this resource, and you don’t have a MyAccess Profile, please contact your library’s reference desk for information on how to gain access to this resource from off-campus. Dilution is a simple method for preparing a lower concentration from a solution of higher concentration. Procedure of Calculation a Draw a problem matrix a Insert quantities as shown a Subtract along the diagonals a Read along the horizontals The desired strength always goes in the center square of the matrix.

Interpret osmolarity, isotonicity, and milliequivalents. That being said, the importance of not making errors in calculatipns arithmetic cannot be overemphasized.

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Pharmacy Calculations Tutorial

Each pharmacy calculations tutorial demonstrates key steps in analyzing and understanding the question, developing the most effective and efficient approach to solving the question, solving the question and reflecting on the question and solution. Here you would find a bespoke pharmacy calculations tutorial for almost every pharmacy calculations topic you would need to learn.


This video demonstrates key steps in performing calculations using the aliquot method and provides pertinent examples. There are two types of alligation: Two further variations on Alligation occur: Since there are only two ingredients, there is only one possible way to form a pair. So in the above example we get: There are a multitude of reliable resources for such material. It gives the weighed average percentage strength of a mixture resulting from components of known quantities and concentration.

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What are the procedures in the pharmacy for double check on the calculations? The hospital order says merely the following: This site uses cookies to provide, maintain and improve your experience. As pharmach progress further into your pharmacy education and your career, you methd become more comfortable with estimating what these answers should be in a given situation and for a given patient, such that you can identify an unreasonable solution relatively easily.