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1. Osmotic water movement across toad isolated hemibladders was measured by a gravimetric method. 2. The influence of carbamazepine, chlorpropamide and demeclocycline on the antidiuretic hormone (ADH)-induced water flow rate was examined. 3. No antidiuretic activity due to carbamazepine alone was observed but a slight inhibition due to ADH-induced water flow was observed in the presence of carbamazepine over a selected dose-range. This was unexpected and is inconsistent with data from in vivo studies in man. 4. Chlorpropamide potentiated ADH-induced water flow, in keeping with the hypothesis that chlorpropamide sensitizes the renal tubules to ADH-induced water flow. 5. Demeclocycline inhibited ADH-induced water flow. The mechanism of action remains unclear.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1908561 | PMC |
| http://dx.doi.org/10.1111/j.1476-5381.1991.tb12466.x | DOI Listing |
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