can gabapentin cause long qt?
Among the mood stabilizers, lithium[22] has a moderate risk of QTc prolongation while the antiepileptics used for this purpose such as carbamazepine, oxcarbazepine, topiramate, valproate,[26] pregabalin, gabapentin,[27] and lamotrigine[28] are reported to be safe with a low risk of QTc prolongation.