Strength of Available Solution

If a medicine is a solution of a specific strength, calculations can become complicated. The strength of a medicine solution is expressed as the weight of the drug that is dissolved in a specific volume of solution. For example 125mg/5ml. It will need to be calculated what volume needs to be administered to give the prescribed dose. If 250mg is prescribed, the amount of suspension to administer would be 2 x 125mg, which would be 10ml.