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- Title
Evaluation of Prolonged Exposure to Varenicline in Adult Rats: Haematological, Biochemical and Anatomopathological Studies.
- Authors
Zaccarelli‐Magalhães, Julia; Moreira, Natalia; Sánchez‐Sarmiento, Angélica Maria; de Souza Spinosa, Helenice; Sandini, Thaísa Meira; de Abreu, Gabriel Ramos; Ricci, Esther Lopes; Fukushima, André Rinaldi
- Abstract
Abstract: Varenicline is a synthetic chemical substance produced from the alkaloid cytisine, used for smoking treatment, which acts as a partial agonist for α4β2 and α3β4 nicotinic cholinergic receptors and as a total agonist for α7 receptor. While there are studies regarding varenicline's non‐smoking‐related effects, as in treatment for drug dependence, there are no studies in the literature evaluating the long‐term toxicity of varenicline through a physiological approach. Thus, the aim of this study was to evaluate possible toxicity through haematological, biochemical and anatomopathological parameters of prolonged exposure (30 days) to varenicline in rats. Three doses of varenicline were used: 0.03 (therapeutic dose for human beings), 0.1 and 0.3 mg/kg orally (gavage). Body‐weight, water and food intake were measured weekly during treatment. On the 30th treatment day, blood and various organs were collected for haematological, biochemical and anatomopathological evaluations. The results show a decrease in some biochemical parameters in animals from the 0.1 and 0.3 mg/kg group, although the values are within the normal range of the species. There were no changes in the other evaluations performed. Together, these data indicate that prolonged exposure of rats to different doses of varenicline was not able to alter haematological, biochemical and anatomopathological parameters.
- Subjects
VARENICLINE; CYTISINE; PHYSIOLOGICAL effects of tobacco; WORLD Health Organization; LABORATORY rats
- Publication
Basic & Clinical Pharmacology & Toxicology, 2018, Vol 122, Issue 3, p305
- ISSN
1742-7835
- Publication type
Article
- DOI
10.1111/bcpt.12913