On the absorption and metabolism of 35S-ampicillin.

Abstract:

:An aqueous solution of 35S-ampicillin and polyethylene glycol (PEG 4000, unabsorbable marker) was administered orally to 6 healthy subjects with gastrointestinal tubes. The minimal absorption of radioactive material, as shown by urinary excretion of label, differed markedly between subjects and averaged 44% (25-67). As the mean cumulative uptake in the proximal jejunum was 31% (24-45), it appeared that some of the radioactivity had been taken up in more distal parts of the gastrointestinal tract. Chromatographic fractionation of gastrointestinal aspirates indicated that more than 95% of the label usually remained attached to the parent compound. The corresponding figure for radioactive material recovered from urine was about 80-85%. A similar degree of decomposition was also found for label excreted in the urine of an additional subject who received 35S-ampicillin intravenously. In this experiment the urine contained 87% of the administered radioactivity.

journal_name

Eur J Clin Pharmacol

authors

Swahn A

doi

10.1007/BF00614007

subject

Has Abstract

pub_date

1975-12-19 00:00:00

pages

117-24

issue

2-3

eissn

0031-6970

issn

1432-1041

journal_volume

9

pub_type

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