Children 1-3yrs: 1/2 teaspoonful daily. Children 4-6yrs: 1/2 teaspoonful twice daily. Children 7-12yrs: 1 teaspoonful 1-2 times daily. Adults: 1 teaspoonful 2 times daily. During menstruation or pregnancy, one teaspoonful 3 times daily is recommended. Feroglobin B12 can be continued for as long as required.