The price you pay.
D015761:4-Aminopyridine / Q000031:analogs & derivatives / Q000191:economics; D000077770:Amifampridine; D017277:Drug Approval; D016527:Drug Costs; D005062:European Union; D006801:Humans; D015624:Lambert-Eaton Myasthenic Syndrome / Q000188:drug therapy; D009965:Orphan Drug Production / Q000191:economics*; D026902:Potassium Channel Blockers / Q000191:economics
D026902:Potassium Channel Blockers; D015761:4-Aminopyridine; D000077770:Amifampridine