Rhabdomyolysis is a rare adverse reaction that has a previously established association with levetiracetam use, which selectively binds the synaptic vesicle glycoprotein 2A (SV2A). Its structural analogue, brivaracetam, is a new third-generation antiseizure medication that has a higher affinity for SV2A, and current data suggests it provides a more favorable adverse event profile. Here, however, we report a case of rhabdomyolysis requiring dialysis in which serum creatine kinase level increased rapidly for several days until brivaracetam was discontinued. The delayed creatine kinase peak, rapid decline upon discontinuation of brivaracetam, and prior association of rhabdomyolysis with levetiracetam strongly suggest a causal relationship. To date, there are three reported cases of brivaracetam-associated rhabdomyolysis in the food and drugs administration adverse event reporting system (FAERS). Despite its favorable side effects profile, the use of brivaracetam may be associated with life-threatening rhabdomyolysis.
Keywords: adverse effects; antiseizure medications; brivaracetam; cerebral cavernoma; rhabdomyolysis; status epilepticus (se).
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