Children are a special group so far as drug treatment is concerned. The adult drug doses need to be carefully scaled down to suit the drug is available in a concentration which is safe and effective. Side effects in children may be different from that of in adults. In view of this, drug treatment in children requires careful dose calculation which is per kg body weight and not fixed doses. The calculation may be difficult in tablet or capsule form of the drug and may be done accurately when the drug is dispensed in liquid, syrup and suspension forms.