Summary
We have studied the single dose and steady-state pharmacokinetic of tiaprofenic acid in ten elderly arthritic patients living in the community (5 men and 5 women) taking 200 mg tid for 8 days.
The mean area under the plasma concentration-time curves to 8 h (AUC (0–8)) did not alter significantly from day 1 to day 8 (77.25 to 79.61 µg·ml−1. h). The mean terminal phase half-life (t1/2) was 2.05 h and 2.25 h on Days 1 and 8 respectively in patients in whom the calculations were possible (7 patients on Day 1 and 6 patients on Day 8). The median observed time of maximum concentration (tmax) and the mean observed maximum plasma concentration (Cmax) of 100 min and 21.3 µg·ml−1 respectively on Day 1 were not significantly different from the values obtained on Day 8 (tmax 120 min; Cmax 20.7 µg·ml−1). The kinetic data suggest that there should be no significant accumulation of tiaprofenic acid in elderly ambulant people suffering from arthritis.
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References
Daymond TJ, Thompson M, Akbar FA, Chestney V (1979) A controlled trial of tiaprofenic acid v. ibuprofen in rheumatoid arthritis. Rheumatol Rehabil 18: 257–260
Eastmond CJ, Hopkins R, Wright V (1982) A comparative controlled study of tiaprofenic acid and naproxen in the treatment of rheumatoid arthritis. Curr Med Res Opin 7: 605–609
Meurice J (1983) Treatment of osteoarthritis, a 3-month comparison between tiaprofenic acid and indomethacin. Curr Med Res Opin 8: 295–301
Thompson M, Daymond TJ, Essigman WK, Huskisson EC, Wojtulewski JA (1982) Short-term efficacy and tolerance of tiaprofenic acid (Surgam) in rheumatoid arthritis and osteoarthritis: Multi-centre, placebo controlled trials. Curr Med Res Opin 8: 215–223
Wojtulewski JA, Walter J, Thornton EJ (1981) Tiaprofenic acid (Surgam) in the treatment of O.A. of the knee and hip. Rheumatol Rehabil 20: 177–180
Pottier J, Berlin D, Busigny M (1982) Human pharmacokinetics of tiaprofenic acid. Rheumatology 7: 70–77
Hamdy RC, Murnane B, Perera N, Woodcock K, Koch IM (1982) The pharmacokinetics of benoxaprofen in elderly subjects. Eur J Rheumatol Inflamm 5: 69–75
Stevenson I, Hosie J (1985) Pharmacokinetics in the elderly. In: O'Malley K, Waddington JL (eds) Therapeutics in the elderly. Elsevier, Amsterdam
Ward GT, Stead JA, Freeman M (1982) J Liquid Chromatogr 5: 165–174
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Hosie, J., Hosie, G.A.C. The pharmacokinetics of single and multiple doses of tiaprofenic acid in elderly patients with arthritis. Eur J Clin Pharmacol 32, 93–95 (1987). https://doi.org/10.1007/BF00609965
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DOI: https://doi.org/10.1007/BF00609965