Question

What volume of phenytoin suspension 30 mg/5 mL is required to be added to a suitable diluent to obtain 150 mL phenytoin suspension 20 mg/5 mL? 100

Answer 1

Explanation:

The given data is as follows.

Concentration of phenytoin suspension stock = 30 mg/5mL

Concentration of phenytoin required = 20 mg/5 mL

Volume of phenytoin required = 150 mL

Volume of phenytoin suspension stock required for dilution will be calculated as follows.

                $20 \times \frac{150}{30}$

                  = 100 mL

Thus, we can conclude that the volume of phenytoin is 100 mL .