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
Epilepsiajournal_title
Epilepsiaauthors
Cottrell PR,Streete JM,Berry DJ,Schäfer H,Pisani F,Perucca E,Richens Adoi
10.1111/j.1528-1157.1982.tb06196.xsubject
Has Abstractpub_date
1982-06-01 00:00:00pages
307-13issue
3eissn
0013-9580issn
1528-1167journal_volume
23pub_type
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