Pharmacokinetics of phenylethylmalonamide (PEMA) in normal subjects and in patients treated with antiepileptic drugs.

Abstract:

:The pharmacokinetics of phenylethylmalonamide (PEMA), a major metabolite of primidone, were investigated following administration of single oral doses (400 mg) to six normal subjects and six patients receiving chronic treatment with antiepileptic drugs. Peak serum PEMA levels were usually attained with 2-4 h after intake. The oral bioavailability estimated on the basis of the recovery of unchanged drug in the urine of normal subjects was at least 80%. Half-life values ranged from 17 to 25 h in normal subjects and from 10 to 23 h in the patients. No statistically significant difference in any of the calculated kinetic parameters could be found between the two groups. The data indicate that PEMA is readily absorbed from the gastrointestinal tract and that it is eliminated predominantly unchanged in the urine of man.

journal_name

Epilepsia

journal_title

Epilepsia

authors

Cottrell PR,Streete JM,Berry DJ,Schäfer H,Pisani F,Perucca E,Richens A

doi

10.1111/j.1528-1157.1982.tb06196.x

subject

Has Abstract

pub_date

1982-06-01 00:00:00

pages

307-13

issue

3

eissn

0013-9580

issn

1528-1167

journal_volume

23

pub_type

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