Wu. Mirza et al., RESULTS OF ANTIEPILEPTIC DRUG REDUCTION IN PATIENTS WITH MULTIPLE HANDICAPS AND EPILEPSY, Drug investigation, 5(6), 1993, pp. 320-326
Although the treatment of patients with epilepsy who are mentally reta
rded and have multiple handicaps has generally involved polypharmacy,
there is an emerging trend towards simplified antiepileptic drug (AED)
regimens. A prospective study of reduction in the number of AEDs was
conducted in an institutionalised population of profoundly retarded pa
tients with epilepsy and multiple handicaps. Of 44 patients with uncon
trolled generalised seizures who were receiving 4 or 5 AEDs in our stu
dy, 28 (64%) achieved monotherapy and the remaining 16 (36%) achieved
duotherapy, with significantly improved seizure control and reduced in
tensity of seizures (although seizure frequency increased transiently
in some patients following withdrawal of primidone and phenobarbital).
14 patients (32%) became seizure-free: 13 received monotherapy and 1
received duotherapy. The remaining patients had greater-than-or-equal-
to 50% reduction in seizure frequency while receiving monotherapy (15
of 28) or duotherapy (15 of 16). The majority of patients who became s
eizure-free were receiving divalproex sodium or a combination of dival
proex and phenytoin. After dosage reduction to regimens with 1 or 2 dr
ugs, most patients showed more positive behaviours and became more soc
iable. Overall treatment costs were also markedly reduced. We conclude
that AED reduction to mono- or duotherapy is desirable in patients wi
th multiple handicaps and refractory seizures who are receiving polyph
armacy regimens.