Fig. 4. Effects of Cl^- channel/exchange antagonists, glibenclamide (GLY; 10 µmol l^-1; N=4), 4,4'-diisothiocyanatostilbene-2,2'-disulfonic acid disodium salt hydrate (DIDS; 400 µmol l^-1; N=4), and tamoxifen (TAM; 100 µmol l^-1; N=4) on a 10 µmol l^-1 carbachol contraction (left) or a 1 mmol l^-1 H₂S (as Na₂S)-induced relaxation of a 10 µmol l^-1 carbachol-prestimulated bladder (right); all controls, N=8. Values are means ± s.e.m. DIDS significantly (^*) reduced the CARB contraction; there were no other significant differences.