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Metabolism of a Thyroxine Analogue, 3,5-Diiodo-4-(4′-acetoxy-3′-iodophenoxy)benzoic Acid in Rats
- Source :
- Xenobiotica. 2:277-291
- Publication Year :
- 1972
- Publisher :
- Informa UK Limited, 1972.
-
Abstract
- 1. The metabolic fate of 3,5-diiodo-4-(4′-acetoxy-3′-[125I]iodophenoxy)-benzoic acid was studied in rats and its principal metabolites identified.2. The drug, orally administered, was rapidly and almost quantitatively absorbed from the intestine, and was distributed to liver and kidney. Blood levels of radioactivity reached a plateau 3 to 5 h after administration, and gradually decreased. Radioactivity was rapidly excreted, largely in the bile, and entered into entero-hepatic circulation. Subsequent excretion in faeces and urine, amounted to 60 and 25%, respectively, within 72 h.3. Repeated oral administration of the drug did not show any accumulation, except in the thyroid gland, which showed a concentration five times higher than that after a single administration.4. The metabolic fate of the drug in animals receiving a subtoxic dose of the unlabelled drug for 4 weeks did not significantly differ from that in control animals.5. The faecal metabolite was identified as the deacetylated drug. Glucuronide a...
- Subjects :
- Male
Drug
medicine.medical_specialty
Time Factors
Chromatography, Paper
Health, Toxicology and Mutagenesis
Metabolite
media_common.quotation_subject
Thyroid Gland
Administration, Oral
Glucuronates
Urine
Acetates
Pharmacology
Kidney
Toxicology
Benzoates
Biochemistry
Excretion
Feces
chemistry.chemical_compound
Oral administration
Iodine Isotopes
Internal medicine
medicine
Animals
Bile
Benzoic acid
media_common
Rats, Inbred Strains
General Medicine
Metabolism
Rats
Thyroxine
Endocrinology
Intestinal Absorption
Liver
chemistry
Injections, Intravenous
Iodobenzoates
Female
Chromatography, Thin Layer
Glucuronide
Ethers
Iodine
Liver Circulation
Subjects
Details
- ISSN :
- 13665928 and 00498254
- Volume :
- 2
- Database :
- OpenAIRE
- Journal :
- Xenobiotica
- Accession number :
- edsair.doi.dedup.....e6e35cf9bc573bd5070543db316c7dde