Reducing/Increasing Formulae

Introduction

A pharmaceutical product is defined in a list of ingredients which make up a particular amount of that product. This list of ingredients acts as a source formula for that product.

For example, the source formula for Paraffin Ointment BP 1988 is:

You will find that you need to make a larger or smaller amount of the product than is defined in the source formula. You must therefore know how to increase and reduce source formulae.