This project applies a randomized community design to test the effectiveness of health center level co-packaging and counseling messages to improve provider and caregiver behavior in the treatment of diarrhea with zinc & oral rehydration salts (ORS) and treatment of pneumonia with zinc & antibiotics in children aged 2-59 mo old. We will evaluate the adherence of caregivers in 10 health posts in 5 municipalities randomly assigned to receive the health center level co-packaging and counseling messages in addition to current standard care, by comparing them with the caregivers in 10 health posts in 5 municipalities randomly assigned to the receive only the current standard of care. Cost-effectiveness of co-packaging at the health-center level, as a means of improving provider treatment and counseling practices and caregiver adherence, will be evaluated.