Studies on the optimal dosage of co-trimazine in children.

There are many difficulties in creating a simple and useful dosage schedule for co-trimazine treatment in children. However, it has been possible to propose a schedule based on age. No advantage can be seen in choosing doses according to weight or other measures of body size. The schedule referred to as schedule B leads to levels of both sulphadiazine and trimethoprim that are as near the optimal as possible with respect to efficacy and side-effects.