Disposition of antipyrine in African patients with Hodgkin's lymphoma.

Abstract

KenyaThe pharmacokinetics of antipyrine were studied in 12 healthy volunteers and 10 patients of Kenya African origin with Hodgkin's lymphoma. The half-life of antipyrine was 12.2 ± 1.3 h (mean + s.d.), while the apparent volume of distribution (V) was 0.67 ± 0.1 1 kg-' (mean ± s.d.) and the total body clearance was 40.7 ± 3.2 ml kg-1 h-1 (mean ± s.d.) in the healthy volunteers. The antipyrine half-life in the patients with advanced Hodgkin's lymphoma was 17.1 ± 2.7 h (mean ± s.d.). The apparent volume of distribution was 0.72 + 0.141 kg-1 (mean ± s.d.) which was larger than in healthy volunteers (P < 0.05). The total body clearance was 30.3 ± 9.4 ml kg-' h-1 (mean + s.d.) and this was reduced compared with that in healthy volunteers (P < 0.02). After cytotoxic therapy the half-life in the patients with advanced Hodgkin's lymphoma was significantly decreased to 8.3 + 1.3 h (mean ± s.d.) (P < 0.07), and the apparent volume of distribution was reduced to 0.65 ± 0.071 kg-(mean ± s.d.) (P < 0.05) while the total body clearance increased to 52.8 + 5.5 ml kg-' h-1 (mean ± s.d.) (P < 0.01).