Add time:08/19/2019         Source:sciencedirect.com

The absorption and distribution of iodinated derivatives of nonoxynol-9, after vaginal administration in rats, were compared with results reported for [14C] nonoxynol-9. Mono-iodinated nonoxynol-9 was synthesized in addition to the radiolabeled derivative incorporating iodide-125 ([125I]). Six hours after dosing, test rats were euthanized and selected tissues were excised and assessed for radioactivity. Levels of radioactive markers in the reproductive system were substantial for both [14C] and [125I]. It was concluded that [125I] mono-iodinated nonoxynol-9 and [14C] nonoxynol-9 possessed similar bioavailability.

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