“ Promethazine , a phenothiazine which binds poorly to Ca 2+ -calmodulin, had no effect on Ca 2+ … increases in MDA or cGMP in cortex or medulla, TFP, but not promethazine, also suppressed Ca 2 + induced increases in acyl hydrolase activities in the …,000 xg particulate fractions from cortex and medulla.”