“Guanidine, methylguanidine, creatinine , and guanidinosuccinic acid reversibly and in a dose‐dependent manner inhibited both GABA and glycine responses.”
“The results suggest that guanidine, methylguanidine, creatinine , and guanidinosuccinic acid inhibited responses to the inhibitory neurotransmitters GABA and glycine by blocking the chloride channel.”