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Lysine clonixinate versus dipyrone (metamizole) for the acute treatment of severe migraine attacks: a single-blind, randomized study.

AbstractBACKGROUND AND OBJECTIVE:
Nonsteroidal anti-inflammatory drugs (NSAID) are effective to treat migraine attacks. Lysine clonixinate (LC) and dipyrone (metamizol) have been proven effective to treat acute migraine. The aim of this study was to evaluate the efficacy and tolerability of the intravenous formulations of LC and dipyrone in the treatment of severe migraine attacks.
METHOD:
Thirty patients (28 women, 2 men), aged 18 to 48 years with migraine according the International Headache Society (IHS) (2004) were studied. The patients were randomized into 2 groups when presenting to an emergency department with a severe migraine attack. The study was single-blind. Headache intensity, nausea, photophobia and side effects were evaluated at 0, 30, 60 and 90 minutes after the drug administration. Rectal indomethacin as rescue medication (RM) was available after 2 hours and its use compared between groups.
RESULTS:
All patients completed the study. At 30 minutes, 0% of the dipyrone group 13% of the LC group were pain free (p=0.46). At 60 and 90 minutes, 2 (13%) and 5 (33%) patients from the dipyrone group and 11 (73%) and 13 (86.7%) patients from the LC group were pain free (p<0.001). At 60 minutes, significantly more patients from the LC group were nausea-free (p<0.001). Regarding photophobia, there were no differences between groups at 60 minutes (p=0.11). The use of RM at 2 hours did not differ among groups (p=0.50). Pain in the site of the injection was reported by more patients of the LC group compared to the dipyrone group (p<0.0001).
CONCLUSION:
LC is significantly superior to dipyrone in treating severe migraine attacks. LC promotes significantly more burning at the site of the injection.
AuthorsAbouch Valenty Krymchantowski, Henrique Carneiro, Jackeline Barbosa, Carla Jevoux
JournalArquivos de neuro-psiquiatria (Arq Neuropsiquiatr) Vol. 66 Issue 2A Pg. 216-20 (Jun 2008) ISSN: 0004-282X [Print] Brazil
PMID18545786 (Publication Type: Comparative Study, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
Chemical References
  • Anti-Inflammatory Agents, Non-Steroidal
  • lysine clonixinate
  • Dipyrone
  • Lysine
  • Clonixin
Topics
  • Acute Disease
  • Adolescent
  • Adult
  • Anti-Inflammatory Agents, Non-Steroidal (adverse effects, therapeutic use)
  • Clonixin (adverse effects, analogs & derivatives, therapeutic use)
  • Dipyrone (adverse effects, therapeutic use)
  • Female
  • Humans
  • Lysine (adverse effects, analogs & derivatives, therapeutic use)
  • Male
  • Middle Aged
  • Migraine Disorders (drug therapy)
  • Pain Measurement
  • Severity of Illness Index
  • Single-Blind Method

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