Capsazepine

[Arg⁸]-vasopressin (AVP) was purchased from Bachem. The following chemicals were products of R&D Systems: TTX, kynurenic acid, picrotoxin, SR49059, GDP-β-S, U73122, U73343, heparin, thapsigargin, BAPTA, chelerythrine, bisindolylmaleimide II (Bis II), capsazepine, M084, edelfosine and pyrazolo[1,5-a]pyrimidin-7(4H)-on (QO-58). Dioctanoyl phosphatidylinositol 4,5-bisphosphate (diC8-PIP₂) was purchased from Echelon Biosciences. Drugs were initially prepared in stock solution, aliquoted and stored at −20°C. For those chemicals requiring dimethyl sulfoxide (DMSO) as a solvent, the concentration of DMSO was less than 0.1%. This concentration of DMSO either in the recording pipettes or in the bath had no significant effects on neuronal activity.

The following chemicals were products of R&D Systems: AVP, tetrodotoxin (TTX), kynurenic acid, picrotoxin, SR49059, TASP0390325, tolvaptan, GDP-β-S, U73122, U73343, heparin, thapsigargin, chelerythrine, bisindolylmaleimide II (Bis II), KB-R7943, capsazepine, AMG9810, AMG1629, capsaicin, ML 133, ML 297 and SCH23390. Dioctanoyl phosphatidylinositol 4,5-bisphosphate (dic8-PIP₂) was purchased from Echelon Biosciences. Drugs were initially prepared in stock solution, aliquoted and stored at −20°C. For those chemicals requiring dimethyl sulfoxide (DMSO) as a solvent, the concentration of DMSO was less than 0.1%. This concentration of DMSO either in the recording pipettes or in the bath had no significant effects on neuronal activity.