“ Curcumin … choline (1 mM)‐induced Ca2+ transients with an EC50 value of 133 nM. The potentiating effect of curcumin was not observed in Ca2+ transients induced … presence of Ca2+ channel antagonists nifedipine (1 &mgr;M), verapamil (1 &mgr;M), ω‐conotoxin (1 &mgr;M), and bepridil (10 &mgr;M).”