Abstract

SALAZAR-GRANARA, Alberto Alcibíades et al. Amitriptyline effect on the antinociception and the neurobehavior in escalation dose in rodents. Acta méd. peruana [online]. 2015, vol.32, n.2, pp.99-106. ISSN 1728-5917.

Objective. To evaluate the antinociceptive effect in acute pain and neurobehavioral of amitriptyline in dose response. Materials and methods. It was used 82 mice of approximately 28 g, distributed in 10 groups. It was given by orally: distilled water (0.1 ml/10 g), tramadol (20 mg/Kg), caffeine (32 mg/Kg), diazepam (32 mg/Kg), and amitriptyline, in doses staggered (10 to 50 mg/Kg). These were used the hot plate test and the Irwin test. The statistics validation was made trougth the next test: one way ANOVA, Tukey, Pearson correlation coefficient and the Fisher exact test. Results. Amitriptyline increased the pain threshold by increasing the administered dose of 30 to 50 mg / kg (p <0.05; 95% CI). At the same doses, it was shown presence of sedation in 46.9, 56.2% and 81.2%, respectively. Conclusions. It was demonstrated the aninociceptive acute effect of amitriptyline. Also, it was shown sedation, piloerection, motor incoordination, jumping, abnormal breathing, and abnormal gait.

Keywords : amitriptyline; nociception; analgesia.

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