Abstract:
:The purpose of this study was to evaluate the pharmacokinetics of sulindac, a purported "renal sparing" nonsteroidal anti-inflammatory drug, and its effects on renal function and prostaglandin excretion in patients with reduced glomerular filtration rate. Twelve female patients (glomerular filtration rate 37 +/- 4 mL/min) were treated with sulindac 200 mg bid for 11 days. Urinary PGE2, 6-keto-PGF1 alpha and serum thromboxane (TxB2) generation were measured by radioimmunoassay (RIA) following extraction on C-18 columns. Glomerular filtration rate and effective renal plasma flow were measured by 99TC-DPTA and 131I-para-aminohippuric acid clearance. In six patients serum and urine levels of sulindac and its metabolites were measured by high-pressure liquid chromatography (HPLC). Sulindac was rapidly absorbed and converted to sulindac sulfide with peak levels 2 hours after a single dose, but steady state levels were not reached prior to drug discontinuation. Sulindac sulfide AUC (0-5 hours micrograms min/mL) progressively increased from 382 to 3,030 on day 11. It did not appear in the urine. Baseline urinary PGE2 and 6-keto-PGF1 alpha excretion were 23.8 +/- 5.6 and 18.9 +/- 2.7 ng/hr respectively and were reduced by 68% and 47% by day 4 of therapy. TxB2 generation fell by 34% after one dose and by 67% by day 11. There was a significant increase in serum creatinine from 1.88 +/- 0.13 mg/dl before treatment to 2.16 +/- 0.15 mg/dL (P less than .05) after eleven days.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
J Clin Pharmacoljournal_title
Journal of clinical pharmacologyauthors
Klassen DK,Stout RL,Spilman PS,Whelton Adoi
10.1002/j.1552-4604.1989.tb03275.xsubject
Has Abstractpub_date
1989-11-01 00:00:00pages
1037-42issue
11eissn
0091-2700issn
1552-4604journal_volume
29pub_type
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