کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2506020 1557503 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of intramuscular lateral distribution profile of topically administered acetaminophen in rats
موضوعات مرتبط
علوم پزشکی و سلامت داروسازی، سم شناسی و علوم دارویی علوم دارویی
پیش نمایش صفحه اول مقاله
Evaluation of intramuscular lateral distribution profile of topically administered acetaminophen in rats
چکیده انگلیسی

To clarify to what extent topically administered drug molecules horizontally permeate into tissues surrounding the administration site, the intramuscular lateral concentration profile of acetaminophen was investigated in vivo using the microdialysis method in rats. When acetaminophen was intramuscularly administered for 6 h in a pinpoint manner at a constant rate of 3 μg/min, it was clearly detected in the muscle surrounding the administration site, being 17.5 μg/ml when measured at a 2 mm distance from the administration site. The concentration in the muscle was decreased as the distance increased, and those measured at 5 mm and 40 mm were 0.35 μg/ml and 0.09 μg/ml, respectively. In addition, it was shown that the concentration in the muscle at 40 mm reflected the compound's concentration in plasma, but not the compound's horizontal permeation from the administration site. With these observations, the intramuscular distribution profile of acetaminophen was numerically characterized according to Fick's law. As a result, it was revealed that horizontal permeation is the primary process accountable for the increased intramuscular concentration only in the area adjacent to the administration site, and the radius of the adjacent area was calculated to be 5.80 mm for acetaminophen.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Pharmaceutics - Volume 343, Issues 1–2, 1 October 2007, Pages 190–195
نویسندگان
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