What is Firdapse?

FIRDAPSE is the first and only FDA-approved, evidence-based treatment for people diagnosed with Lambert-Eaton myasthenic syndrome (LEMS). FIRDAPSE is clinically proven to maintain muscle strength, mobility, and improve a patient’s sense of physical well-being.

How FIRDAPSE works in patients with LEMS

  1. Our muscles rely on a chemical signal from our nerves called acetylcholine (ACh) to move and function properly.
  2. In patients with LEMS, nerves have a reduced ability to release ACh, so the muscles don’t receive the signal they need to move and function.
  1. As a result, patients with LEMS are left feeling tired and weak.
  2. FIRDAPSE improves the ability of nerves to communicate with muscles by helping to restore the release of ACh.

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Educational Brochure

Download an educational brochure about LEMS and how FIRDAPSE may help.

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Your symptoms may be trying to tell you something. Take a brief assessment survey to get a better picture of what’s really going on, and then share it with your doctor.