“… Trifluoperazine inhibits superoxide production and … pig neutrophils incubated with arachidonic acid , N-formylmethionylphenylalanine, digitonin or ionophore A23187, with IC 50 values of 7–37uM. Since this inhibition is produced by … interaction of calmodulin with proteins, we examined the effects of two other phenothiazines which interact less effectively with calmodulin.”