To determine if magnesium sulfate paired with an analgesic medication will improve patient pain from renal colic compared with analgesic alone.

Inclusion Criteria:

• Age >18 years old and <100 years old.
• Patients seen in the Emergency Department at Henry Ford Macomb hospital.
• Patients that are A+Ox3.
• Patients who have typical presentation for renal colic.

Exclusion Criteria:

• Age <18 years.
• Patients with a history of dementia, acute delirium or altered mental status.
• Patients with inability to consent to study or inability to fill questionnaire independently.
• Patients with chronic kidney disease and allergies to study drugs.
• Patients that are pregnant (women who are of child-bearing potential will be screened with a urine BHCG).
• Patients with stroke activation or symptoms.
• Patients with trauma activations.
• Patients over the age of 100 years old are excluded as they make up a small percentage of the population and may become identifiable because of their age.
• Imaging study does not show evidence of ureteral stone.