User:Mr. Ibrahem/Amifampridine

Amifampridine, sold under the brand name Firdapse and Ruzurgi, is a medication used to treat Lambert–Eaton myasthenic syndrome (LEMS). It is taken by mouth. There are two forms, one labelled for use in children and the other in adults.

Common side effects include numbness, stomach pain, diarrhea, and nausea. It should not be used in people with prolonged QT, epilepsy, or asthma. There are concerns that use in pregnancy many harm the baby. It is a potassium channel blocker which prolongs the time of nerve depolarization.

Amifampridine was approved for medical use in Europe in 2009 and the United States in 2018. In the United Kingdom 100 pills of 10 mg costs the NHS about £1,800 as of 2021. This amount in the United States costs about 20,600 USD.