Now there’s an FDA-approved, first-line treatment for adults with LEMS.1,2

INDICATIONS AND USAGE: FIRDAPSE is a potassium channel blocker indicated for the treatment of Lambert-Eaton myasthenic syndrome (LEMS) in adults. IMPORTANT SAFETY INFORMATION CONTRAINDICATIONS FIRDAPSE is contraindicated in patients with:

  • A history of seizures
  • Hypersensitivity to amifampridine phosphate or another aminopyridine

WARNINGS AND PRECAUTIONS Seizures: FIRDAPSE can cause seizures. Consider discontinuation or dose-reduction of FIRDAPSE in patients who have a seizure while on treatment. FIRDAPSE is contraindicated in patients with a history of seizures. Hypersensitivity: If a hypersensitivity reaction such as anaphylaxis occurs, FIRDAPSE should be discontinued and appropriate therapy initiated. ADVERSE REACTIONS The most common adverse reactions are: paresthesia, upper respiratory tract infection, abdominal pain, nausea, diarrhea, headache, elevated liver enzymes, back pain, hypertension, and muscle spasms. To report SUSPECTED ADVERSE REACTIONS, contact Catalyst Pharmaceuticals at 1-844-347-3277 (1844-FIRDAPSE) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

It's All About The Company You Keep

Catalyst Pharmaceuticals is committed to improving the lives of people with rare diseases

Now there’s an FDA-approved, first-line treatment for adults with LEMS.1,2

INDICATIONS AND USAGE: FIRDAPSE is a potassium channel blocker indicated for the treatment of Lambert-Eaton myasthenic syndrome (LEMS) in adults.

IMPORTANT SAFETY INFORMATION

CONTRAINDICATIONS

FIRDAPSE is contraindicated in patients with:

  • A history of seizures
  • Hypersensitivity to amifampridine phosphate or another aminopyridine

WARNINGS AND PRECAUTIONS

Seizures: FIRDAPSE can cause seizures. Consider discontinuation or dose-reduction of FIRDAPSE in patients who have a seizure while on treatment. FIRDAPSE is contraindicated in patients with a history of seizures.

Hypersensitivity: If a hypersensitivity reaction such as anaphylaxis occurs, FIRDAPSE should be discontinued and appropriate therapy initiated.

ADVERSE REACTIONS

The most common adverse reactions are: paresthesia, upper respiratory tract infection, abdominal pain, nausea, diarrhea, headache, elevated liver enzymes, back pain, hypertension, and muscle spasms.

To report SUSPECTED ADVERSE REACTIONS, contact Catalyst Pharmaceuticals at 1-844-347-3277 (1844-FIRDAPSE) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

It's All About The Company You Keep

Catalyst Pharmaceuticals is committed to improving the lives of people with rare diseases

At Catalyst Pharmaceuticals, we understand that receiving a rare disease diagnosis can be extremely difficult. Often patients feel isolated and hopeless. That’s why we believe that, when you’re battling a rare disease—it’s all about the company you keep.

Our company is committed to developing novel, safe, and efficacious therapies that will improve the lives of people with rare and ultra-rare diseases.

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