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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.
Stop taking FIRDAPSE and call your doctor right away if you have a seizure while taking FIRDAPSE.
Tell your doctor about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.
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.
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 at Prescribing Information for additional Important Safety Information.
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