Norditropin Simplexx 30 IU Pen and 15mg (45IU) solution for injection cartridges are indicated in children with growth problems, Turner’s syndrome, in people with certain kidney problems and in children who are too small for their age. Norditropin is supplied by Novo Nordisk Limited and contains: histidine hydrochloric acid for pH adjustment mannitol phenol poloxamer 188 sodium hydroxide for pH adjustment somatropin water for injections Norditropin Simplexx is manufactured using recombinant DNA technology in E. coli secretion expression system.