The aim of the investigators study was to evaluate the feasibility, efficacy and safety of nebulized morphine compared with non-steroidal anti-inflammatory (NSAI)intravenously in the management of renal colic.

Determine the need for systematic outpatient prescription of NSAI.

Renal colic are a frequent cause of consultation in the emergency departement (ED).

They count for approximatively 20% of patients presenting to the ED with severe acute onset abdominal pain.

For acute treatment of renal colics (RC), guidelines recommend the use of intravenous (IV) non-steroidal anti-inflammatory (NSAI) drugs in association with antalgics like Paracetamol or Morphine.

But the NSAID present many inconvenient and cannot be used in some type of patients; that's why the investigators investigated the use of other drugs, such as nebulised morphine, in the ED treatment of renal colics.

the NM has the adequacy of being quickest, more practical to use and more tolerated than the IV NSAID.

In this study, the investigators aim to assess the feasibility, efficacity and safety of nebulised morphine compared to intravenous NSAID in the treatment of RC.

Inclusion Criteria:

• Over 16 years old
• Consenting to participate in the study
• Diagnosis of renal colic matching flank pain / lumbar fossa sided with dipstick and / or imaging confirmed the diagnosis
• VAS> 50% at consultation

Exclusion Criteria:

• Inability to assess pain VAS;
• Pregnant or lactating woman;
• Recognized renal disease (glomerular filtration rate <60ml/kg/1.73m2);
• Known hepatic insufficiency;
• Known or suspected allergy to NSAIDs, morphine
• Peptic ulcer known;