other putative `` '' calcium antagonists '' '' such as tetracaine , neomycin sulfate , and 3,4,5-trimethoxybenzoic acid [ 8- ( diethylamino ) octyl ester ] , do not interfere with epinephrine + ibmx-induced release of [ 3h ] methotrexate , suggesting that these agents may not be effective probes of calcium flux in the liver cell .
C0039629
s tetracai
C0014898
est