FIRDAPSE is the only FDA-approved, evidence-based treatment for adults diagnosed with Lambert-Eaton myasthenic syndrome (LEMS).
Our muscles rely on a chemical signal from our nerves called acetylcholine (ACh) to move and function properly.
LEMS reduces the ability of nerves to release ACh, so the muscles don’t receive the signal they need to move and function.
As a result, patients with LEMS are left feeling tired and weak.
FIRDAPSE improves the ability of nerves to communicate with muscles by helping to restore the release of ACh.
FIRDAPSE is a prescription medicine used to treat adults 17 years of age or older with Lambert-Eaton myasthenic syndrome (LEMS). The safety and efficacy of FIRDAPSE in patients under the age of 17 has not been established.
What is the most important information I should know about FIRDAPSE?
Stop taking FIRDAPSE and call your doctor right away if you have a seizure while taking FIRDAPSE.
Do not take FIRDAPSE if you:
Before you take FIRDAPSE, tell your doctor about all of your medical conditions, including if you:
Tell your doctor about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.
How should I take FIRDAPSE?
What are the possible side effects of FIRDAPSE?
FIRDAPSE may cause serious side effects, including:
Tell your doctor if you have any side effect that bothers you or that does not go away.
These are not all the possible side effects of FIRDAPSE.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
How should I store FIRDAPSE?
Keep FIRDAPSE and all medicines out of the reach of children.
If you would like more information, ask your doctor or pharmacist for additional information about FIRDAPSE.
The active ingredient in FIRDAPSE is amifampridine phosphate. Inactive ingredients are calcium stearate, colloidal silicon dioxide, and microcrystalline cellulose.
Please see full Prescribing Information for additional Important Safety Information.
FIRDAPSE is a prescription medicine used to treat adults 17 years of age or older with Lambert-Eaton myasthenic syndrome (LEMS). The safety and efficacy of FIRDAPSE in patients under the age of 17 has not been established.
What is the most important information I should know about FIRDAPSE?
Stop taking FIRDAPSE and call your doctor right away if you have a seizure while taking FIRDAPSE.
Do not take FIRDAPSE if you:
Before you take FIRDAPSE, tell your doctor about all of your medical conditions, including if you:
Tell your doctor about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.
How should I take FIRDAPSE?
What are the possible side effects of FIRDAPSE?
FIRDAPSE may cause serious side effects, including:
Tell your doctor if you have any side effect that bothers you or that does not go away.
These are not all the possible side effects of FIRDAPSE.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
How should I store FIRDAPSE?
Keep FIRDAPSE and all medicines out of the reach of children.
If you would like more information, ask your doctor or pharmacist for additional information about FIRDAPSE.
The active ingredient in FIRDAPSE is amifampridine phosphate. Inactive ingredients are calcium stearate, colloidal silicon dioxide, and microcrystalline cellulose.
Please see full Prescribing Information for additional Important Safety Information.