FIRDAPSE is an oral medication that comes in 10-mg scored tablets. These tablets are supplied in bottles as well as blister packs, so you and your doctor can choose the right option for you.
FIRDAPSE is typically taken 3 to 4 times per day and can be taken with or without food. It’s important to take FIRDAPSE exactly as directed by your doctor.
10-mg tablets
With or without food
Every day*Each patient’s dose is based on individual needs. Your doctor will work with you to find the right dose for you. Use a pill cutter when necessary to take the prescribed dose. Dosage should not exceed a maximum daily dose of 80 mg.
It is important to follow your prescription carefully. Take your FIRDAPSE dose on time and according to schedule.
If you miss a dose, skip it altogether and take your next dose at the scheduled time.
Some people may experience a rapid improvement in their symptoms when treated with FIRDAPSE. For others, it may take longer to reach the optimal therapeutic dose the dose that provides the most symptom relief with the fewest side effects .
Your dose of FIRDAPSE will be customized by your doctor based on how well your treatment manages your symptoms and how well you tolerate the treatment. Once you start FIRDAPSE, your doctor may steadily increase your dose according to an established schedule. This process is called titration.
Help us track the safety of FIRDAPSE use during pregnancy. Contact the FIRDAPSE Pregnancy Registry by calling (855) 212-5856 or visiting www.firdapsepregnancystudy.com.
It is important to provide regular feedback to your physician during this process so he or she can identify your optimal therapeutic dose.
Catalyst has created a voluntary patient registry designed to provide personalized metabolism information for FIRDAPSE. Patients who choose to enroll in the registry will be asked to provide a cheek swab sample for genetic testing of the NAT2 gene, which produces an enzyme that determines how fast or how slowly some medications, including FIRDAPSE, are metabolized by the body. The sample will be analyzed and the results sent back to the patient and to the patient’s doctor. The registry will also collect the patient’s dosing history and any reported side effects (if applicable) for a minimum of 6 months after the patient volunteered to participate in the registry. The patient’s doctor can use the patient’s metabolic rate, dosing history, and any reported side effects to further personalize treatment. All information collected will be kept anonymous, and patients can withdraw from the registry at any time.
Ask your doctor for more information about the registry and how you may participate.
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.
