British Journal of Anaesthesia, 2003, Vol. 91, No. 2 287-289
© 2003 The Board of Management and Trustees of the British Journal of Anaesthesia
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Effect of intravenous alizapride on spinal morphine-induced pruritus
1 Department of Anesthesiology, Santa Casa de Misericórdia de Pelotas, Brazil. 2 Department of Anesthesiology, Hospital Universitário São Francisco de Paula da UCPEL, Pelotas, RS, Brazil. 3 Department of Anesthesiology of the School of Medicine of Botucatu, UNESP, Botucatu, SP, Brazil
Corresponding author: Rua Anchieta 4043, 96015.420, Pelotas, RS, Brazil. E-mail: marciolhorta@uol.com.br
Background. This double-blind study was undertaken to determine whether alizapride inhibits spinal morphine-induced pruritus.
Methods. Eighty-four patients undergoing Caesarean section under spinal anaesthesia (100 mg of hyperbaric lidocaine 5% plus morphine 0.2 mg) were randomly allocated to one of two groups. Just after birth, alizapride50 mg (alizapride group) or metoclopramide10 mg (metoclopramide group) were injected i.v. Patients were assessed after surgery for pruritus (absent, mild, moderate or severe) or other untoward symptoms.
Results. In the metoclopramide group, pruritus was absent in 5 (12%) patients, mild in 23 (55%), moderate in 11 (26%), and severe in 3 (7%), while in the alizapride group, these incidences were, respectively, 5 (12%), 33 (79%), 4 (10%), and 0 (P=0.045,
2-test). There was no difference in the incidence of side-effects, which were all minor.
Conclusions. Alizapride reduced the severity of morphine-induced pruritus.
Br J Anaesth 2003; 91: 2879
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