['migraine disorders']
['prochlorperazine']

        Inclusion Criteria:

          -  Patients between 18-65 years of age evaluated in the emergency department at
             Harbor-UCLA with migraine headache as defined by the Headache Classification Committee
             of the International Headache Society. (Patients must have had at least one prior
             similar headache, with or without nausea, vomiting, aura, photophobia, or
             phonophobia).

          -  Only subjects able to consent to treatment will be included.

        Exclusion Criteria:

        Patients with the following conditions:

          -  pregnancy

          -  breastfeeding

          -  fever greater or equal to 100.4 degrees

          -  diastolic blood pressure of 105 or higher

          -  altered mental status

          -  meningeal signs

          -  suspicion for intracranial process requiring further investigation

          -  known allergy to prochlorperazine

          -  the use of ergotamines, antiemetics, antipsychotics or sedatives in the previous 24
             hours of study entry.
      