Abstract:The effect of 2-[2-[4-(diphenylmethyl)-1-piperadinyl] ethoxy] benzoic acid maleate (ZCR-2060) on passive systemic anaphylaxis (PSA) and antigen-induced immediate- and late-phase increase in airway resistance (Rrs) in either passively or actively sensitized guinea pigs were investigated. ZCR-2060 inhibited PSA in guinea pigs. ID50 values of ZCR-2060, ketotifen, terfenadine and cetirizine on PSA were 0.03, 0.02, 0.8 and 0.3 mg/kg, respectively, when administered orally 1 h before the antigen challenge… Show more
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