Analgesic Efficacy of Morphine Alone or Combined With Paracetamol and/or Ibuprofen for Long-bones Fractures in Children

Paracetamol will be an oral solution of 30 mg/ml. The doses of paracetamol will be 15 mg/kg (maximum dose: 1g).

Ibuprofen will be an oral suspension of 20mg/ml. The doses of ibuprofen 10 mg/kg (maximum dose: 400 mg).

Paracetamol will be an oral solution of 30 mg/ml. The doses of paracetamol will be 15 mg/kg (maximum dose: 1g) Ibuprofen will be an oral suspension of 20mg/ml. The doses of ibuprofen 10 mg/kg (maximum dose: 400 mg).

Placebo will have the closest flavour, smell and aspect to the active substances, respectively paracetamol and ibuprofen. Placebo will be prepared in bottles with a fake label of active substances for a better blinding both for the nurse and the patient. Labels will be hiding by a mask.