“Dipyridamole, and … and clonazepam (10(-5) to 10(-… the tracheal response to adenosine , the rank order of potency being dipyridamole (pKi = 7.77 +/- 0.12, n = 8) greater than Ro5-4864 (…, n = 6) greater than or equal to diazepam greater than clonazepam (pKi = 4.84 +/- 0.11, n = 6).”