Abstract
The case of a 6 year old child who presented with convulsions and coma after unsupervised self administration of intranasal desmopressin (DDAVP) for nocturnal enuresis is presented. Children with enuresis can be embarassed by their condition and may believe that multiple doses of their nasal spray may bring about a rapid resolution. Water intoxication is an uncommon but serious adverse effect of treatment with intranasal DDAVP. These patients may present with seizure, mental state changes, or both. Basic management consists of stopping the drug, fluid restriction, and suppressive treatment for seizures. Recovery is usually rapid and complete. Administration of the nasal spray in children should be supervised by parents to prevent highly motivated children from accidental overdose. The risks of high fluid intake need to be carefully explained to both parents and children.
Full text
PDF

Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Donoghue M. B., Latimer M. E., Pillsbury H. L., Hertzog J. H. Hyponatremic seizure in a child using desmopressin for nocturnal enuresis. Arch Pediatr Adolesc Med. 1998 Mar;152(3):290–292. doi: 10.1001/archpedi.152.3.290. [DOI] [PubMed] [Google Scholar]
- Hamed M., Mitchell H., Clow D. J. Hyponatraemic convulsion associated with desmopressin and imipramine treatment. BMJ. 1993 May 1;306(6886):1169–1169. doi: 10.1136/bmj.306.6886.1169. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Richardson D. W., Robinson A. G. Desmopressin. Ann Intern Med. 1985 Aug;103(2):228–239. doi: 10.7326/0003-4819-103-2-228. [DOI] [PubMed] [Google Scholar]
- Robson W. L., Nørgaard J. P., Leung A. K. Hyponatremia in patients with nocturnal enuresis treated with DDAVP. Eur J Pediatr. 1996 Nov;155(11):959–962. doi: 10.1007/BF02282887. [DOI] [PubMed] [Google Scholar]
- Schwab M., Ruder H. Hyponatraemia and cerebral convulsion due to DDAVP administration in patients with enuresis nocturna or urine concentration testing. Eur J Pediatr. 1997 Aug;156(8):668–668. [PubMed] [Google Scholar]
- Schwab M., Wenzel D., Ruder H. Hyponatraemia and cerebral convulsion due to short term DDAVP therapy for control of enuresis nocturna. Eur J Pediatr. 1996 Jan;155(1):46–48. doi: 10.1007/BF02115626. [DOI] [PubMed] [Google Scholar]
- Simmonds E. J., Mahony M. J., Little J. M. Convulsion and coma after intranasal desmopressin in cystic fibrosis. BMJ. 1988 Dec 17;297(6663):1614–1614. doi: 10.1136/bmj.297.6663.1614. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Williford S. L., Bernstein S. A. Intranasal desmopressin-induced hyponatremia. Pharmacotherapy. 1996 Jan-Feb;16(1):66–74. [PubMed] [Google Scholar]
