2011
DOI: 10.1590/s0004-27302011000700001
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Levotiroxina e o problema da permutabilidade de drogas de estreito intervalo terapêutico

Abstract: SUMÁRIOTem se tornado prática comum em nosso país a troca de medicamentos prescritos por outros similares, por produtos genéricos e até mesmo por produtos manipulados, muitas vezes ignorando-se preceitos básicos de bioequivalência, permutabilidade, estabilidade e características específicas do composto farmacêutico. No caso de drogas de índice terapêutico estreito, como a levotiroxina, esses problemas se agravam colocando em sério risco a eficácia do tratamento e a saúde do paciente. Revemos a legislação perti… Show more

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Cited by 3 publications
(2 citation statements)
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“…In the long term, serum levels of cholesterol, homocysteine, and C-reactive protein increase. There is also a risk of bone fractures and increased arterial stiffness, which becomes a significant risk factor for cardiovascular diseases 27 .…”
Section: Discussionmentioning
confidence: 99%
“…In the long term, serum levels of cholesterol, homocysteine, and C-reactive protein increase. There is also a risk of bone fractures and increased arterial stiffness, which becomes a significant risk factor for cardiovascular diseases 27 .…”
Section: Discussionmentioning
confidence: 99%
“…The study of Patel [21] revealed that tablets manufactured with dibasic calcium phosphate and basic pH modifier (like sodium carbonate, Commercial levothyroxine oral formulations available in North America and Europe include powders for intravenous solutions, tablets, soft gel capsules and oral solutions [5]. Many studies have been published describing comparisons of the pharmacokinetic properties of various levothyroxine formulations and various approaches have been employed since bioequivalence assessments of levothyroxine are complicated by baseline levels, feedback mechanisms and by the fact that levothyroxine is considered by some to be a "narrow therapeutic index" (NTI) drug [6,7].…”
Section: Introductionmentioning
confidence: 99%