For severe anemia, the dosage of this ferrous ascorbate and folic acid suspension must be precisely calculated by your doctor based on the patient's exact body weight and age. Typically, therapeutic pediatric dosing ranges from 3 to 6 mg of elemental iron per kilogram of body weight daily, divided into two or three doses. Because severe anemia requires careful correction and monitoring to avoid under-dosing or iron toxicity, please do not self-prescribe. Consult your pediatrician or physician, who will safely prescribe the exact milliliter dose. For best absorption, it is usually given on an empty stomach, but can be taken with food if it causes mild stomach upset.