[{"from": "human", "value": "Describe this molecule. [C][=C][N][=C][C][=Branch1][Branch1][=C][Ring1][=Branch1][N][N]"}, {"from": "gpt", "value": "The molecule is an orally available potassium channel blocker that increases acetylcholine in synaptic clefts of peripheral nerve endings and is used to treat the Lambert-Eaton myasthenic syndrome. Amifampridine is associated with a low rate of transient serum enzyme elevations during therapy but has not been linked with instances of clinically apparent acute liver injury."}]