Tolerância às metilxantinas e interações com o Sistema Dopaminérgico: possíveis implicações clínicas

Autores

  • José Eduardo Tanus dos Santos Departamento de Química, Centro de Ciências Naturais e Exatas - CCNE Universidade Federal de Santa Maria - UFSM, Santa Maria, RS.
  • João Batista T. Rocha Departamento de Química, Centro de Ciências Naturais e Exatas - CCNE Universidade Federal de Santa Maria - UFSM, Santa Maria, RS.

DOI:

https://doi.org/10.5902/2179460X26502

Resumo

Trabalhos recentes sugerem que as metilxantinas poderiam interferir com a eficiência terapêutica dos neurolépticos, uma vez que a catalepsia induzida por haloperidol ou clorpromazina é revertida por metilxantinas. Todavia, estes trabalhos forem feitos através da administração aguda das drogas, o que exclui o possivel desenvolvimento de tolerância as metilxantinas. No presente trabalho fez-se uma revisão da literatura e observou-se que os estudos sobre o desenvolvimento de tolerância ás metilxantinas são poucos e, em alguns casos, controversos. Além disto, em nosso laboratório não encontramos tolerância á cafeína no tocante á estimulação da atividade locomotora e á reversão de catalepsia induzida por clorpromazina. Estes resultados demonstram a necessidade da execução de estudos clínicos bem controlados com pacientes psiquiátricos que usem drogas de ambos os grupos para determinar se as metilxantinas interferem efetivamente com a eficácia antipsicótica dos neurolépticos.

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Publicado

1994-12-12

Como Citar

Santos, J. E. T. dos, & Rocha, J. B. T. (1994). Tolerância às metilxantinas e interações com o Sistema Dopaminérgico: possíveis implicações clínicas. Ciência E Natura, 16(16), 113–124. https://doi.org/10.5902/2179460X26502