tramadol 338338 · Poloxamer 407 · polyethylene glycol · Polyethylene Glycol 4000 · Polyoxyl 15 Tramadol Hydrochloride manufacturer or Tramadol Hydrochloride supplierResults 3 58 383 registered patients aged 6–18 years between 1 January 2003 and 31 December 2013 provided a total of 19 20 338 person