gabapentin 10 Animals 8 human 8 Humans 6 anticonvulsive agent 6 nonhuman 6 review 6 4 aminobutyric acid 4 Anticonvulsants 4 Article 4 Calcium Channels 4 Gabapentin 4 Pregabalin 4 Tinnitus 4 animal 4 calcium channel 4 carbamazepine 4 clonazepam 4 controlled study 4 drug industry 4 drug mechanism 4 drug targeting 4 epilepsy 4 gamma-Aminobutyric Acid 4 lamotrigine 4 metabolism 4 neramexane 4 nerve cell plasticity 4 neurochemistry 4 paroxetine 4