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Plasma Levels of Antidiuretic Hormone in Patients Receiving Prolonged Lithium Therapy

  • P. L. Padfield (a1), S. J. Park (a1), J. J. Morton (a1) and A. E. Braidwood (a1)


Among 18 patients receiving prophylactic, long-term lithium treatment for manic-depressive psychosis, a high incidence of increased thirst and frequency of micturition (60–70 per cent) was noted on direct questioning. Symptoms arose at varying times after the start of lithium therapy; in no patient did symptoms antedate the use of the drug.

Plasma levels of antidiuretic hormone were found, on average, to be higher than in normal control subjects for a given level of plasma osmolality, although the scatter of results was wide. It is suggested that elevation of antidiuretic hormone occurs as a compensatory mechanism for the polyuria which is a common feature of long-term lithium treatment. The more florid form of nephrogenic diabetes insipidus occasionally seen in lithium takers seems likely to be due to a different mechanism from the more common mild polyuria.



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Plasma Levels of Antidiuretic Hormone in Patients Receiving Prolonged Lithium Therapy

  • P. L. Padfield (a1), S. J. Park (a1), J. J. Morton (a1) and A. E. Braidwood (a1)


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Plasma Levels of Antidiuretic Hormone in Patients Receiving Prolonged Lithium Therapy

  • P. L. Padfield (a1), S. J. Park (a1), J. J. Morton (a1) and A. E. Braidwood (a1)
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