Single dose pharmacokinetics of auranofin in rheumatoid arthritis. 1982

K Blocka, and D E Furst, and E Landaw, and S Dromgoole, and A Blomberg, and H E Paulus

Six rheumatoid arthritis (RA) patients were given 2 6 mg doses of auranofin (AF) containing Au195, 6 months apart. The radioactivity in the whole body and in plasma, urine, and stool samples was measured for 6 months after each dose. Absorption was rapid with peak plasma concentrations occurring 1.2-2 h post administration. 195Au plasma half-lives (t1/2) ranged from 11.0-31.3 days, with 195Au detectable in plasma for about 80 days. Total body t1/2 averaged 69.2+/-29.7 days. Urinary excretion accounted for 15% of the dose. Cumulative stool excretion was 89%, although 72% was excreted in 10 days. Continued stool excretion over 6 months suggested a "central-enteric" component to the excretory route.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D005243 Feces Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.
D005260 Female Females
D006046 Gold A yellow metallic element with the atomic symbol Au, atomic number 79, and atomic weight 197. It is used in jewelry, goldplating of other metals, as currency, and in dental restoration. Many of its clinical applications, such as ANTIRHEUMATIC AGENTS, are in the form of its salts.
D006050 Gold Radioisotopes Unstable isotopes of gold that decay or disintegrate emitting radiation. Au 185-196, 198-201, and 203 are radioactive gold isotopes. Radioisotopes, Gold
D006051 Aurothioglucose A thioglucose derivative used as an antirheumatic and experimentally to produce obesity in animals. Gold Thioglucose,Aureotan,Auromyose,Aurothioglucose, Sodium Salt, beta-D Isomer,Aurothioglucose, beta-D Isomer,Gold-50,Solganal,Solganal B Oleosum,Solganol,Thioglucosoaurate,Aurothioglucose, beta D Isomer,B Oleosum, Solganal,Gold 50,Gold50,Oleosum, Solganal B,Thioglucose, Gold,beta-D Isomer Aurothioglucose
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000042 Absorption The physical or physiological processes by which substances, tissue, cells, etc. take up or take in other substances or energy.

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