“… BQ-123 (10–… ( 10–9–10–5 M ) inhibited ET-1- and U 46619-induced IP formation, respectively, with monophasic concentration-inhibition curves: pKi-values for BQ-123 were: ….35 (abdominal aorta) and for SQ 29548: 8.2±0.3 (thoracic aorta) and 8.5±0.3 (abdominal aorta).”