1 alpha-hydroxycholecalciferol in hemodialysis renal osteodystrophy. Adverse effects of anticonvulsant therapy

Pierides, A.M.; Kerr, D.N.; Ellis, H.A.; Peart, K.M.; O'Riordan, J.L.; DeLuca, H.F.

Clinical Nephrology 3(2): 189-196

1976


ISSN/ISBN: 0301-0430
PMID: 819195
Document Number: 102465
Two regular hemodialysis patients were assessed before, during and after therapy for 8 1/2 months with 1alpha-hydroxycholecalciferol (1alphaOHD3). The first patient (F.S.), treated with 2 mug daily, improved considerably with complete resolution of histological osteomalacia (O.M.), reduction in osteitis fibrosa (O.F.) and healing of Looser zones. The second patient (T.Y.), who was treated at the same time with a combination of phenobarbitone and phenytoin, showed no improvement while taking 3 mug of 1alphaOHD3 daily. It is suggested that hepatic microsomal enzyme inducing drugs antagonize the action of 1alphaOHD3 by interfering with its subsequent hepatic 25-hydroxylation.

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