<unk>  is an aminopyridine that functions as a centrally acting non-opioid analgesic. It first became available in Europe in 1984, and is sold mainly under the names Katadolon, Trancolong, Awegal, Efiret, Trancopal Dolo, and Metanor.<unk>  is sold by Intas Pharma under the brand name Pruf in India. Like nefopam, it is unique among analgesics in that it is a non-opioid, non-NSAID, non-steroidal centrally acting analgesic. In 2010 the chemically related drug (the difference being that the pyridine group in<unk>  is replaced with a phenyl group) retigabine (INN; ezogabine [USAN]) was approved by the FDA as an anticonvulsant for the treatment of refractory partial-onset seizures in treatment-experienced patients. Retigabine also works by opening the neuronal KCNQ/Kv7 potassium channel, just like<unk> .
Flupirtine
Domperidone
Ketobemidone
Cinolazepam
Ziprasidone 
Zolpidem 
Medazepam
Paliperidone 