I ikke- kliniske forsøg viste lacosamid i kombination med levetiracetam, carbamazepin, phenytoin, valproat, lamotrigin, topiramat eller gabapentin synergistiske eller additive antikonvulsive effekter.
In non-clinical experiments lacosamide in combination with levetiracetam, carbamazepine, phenytoin, valproate, lamotrigine, topiramate or gabapentin showed synergistic or additive anticonvulsant effects.