Reducing and Enlarging

There are instances in pharmacy practice when a pharmacist needs to be reduce or enlarge formulas of a pharmaceutical preparation. Reducing a formula involves calculating the amount of each ingredient to be used to make a smaller amount than the original formula. While enlarging a formula involves calculating the amount of each ingredient to make a larger amount than the original formula. While reducing or enlarging a formula it is essential to maintain the proportion of all ingredients.

Pharmaceutical preparations can be reduced or enlarged using ratio and proportion, dimensional analysis, and the factor method. We will be using the factor method to achieve the reduction and enlargement.