In Sweden about 100 000 children are born every year which means that 1.8 million children are living in Sweden today. The knowledge in children’s medical treatment is still lacking that of adults. Pediatric pharmacotherapy relies largely on medicines intended for adult use and data on long-term effects, adverse effects, efficacy and safety in children is sparse. The greatest needs in this area is clinical research and development of pharmaceuticals. SwedPedMed is an organization working to increase the knowledge in drug development for children. We work with networks of experts in Sweden and in cooperation with the Nordic and European networks.