Firdapse Coupon & Prices

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Medically reviewed by  Jamie Winn, PharmD

Your monthly Firdapse cost savings if eligible

If you are eligible for the Firdapse patient assistance program you can receive your medication for free. Our monthly service fee of $49 per medication covers the cost of our services in applying for the program and requesting your ongoing refills on your behalf. If you obtain your Firdapse through NiceRx, you will only pay $49 a month regardless of the retail price of your medication.

Am I eligible for the Firdapse patient assistance program?

You could receive your Firdapse without paying the full retail price if you meet the eligibility criteria for assistance. The eligibility requirements are set by the pharmaceutical companies that are providing assistance programs. At NiceRx, we review each application individually, although the main factors considered by most programs are:

  • I am a permanent, legal resident of the United States or Puerto Rico
  • I am uninsured or my insurance doesn’t cover my medication
  • I meet certain income eligibility requirements

How do I apply for Firdapse patient assistance?

We do everything that we can to take the hassle and stress out of applying for patient assistance programs. Simply start by filling in our enrollment application. We will ask for details about your healthcare provider, your insurance, and your household income. This information is required by the pharmaceutical companies you are applying to for assistance. We may also be able to help you access patient assistance for other medications that you have been prescribed, so be sure to tell us about any medications you are taking as well as Firdapse.

NiceRx will review the information you have provided, and if we determine that you may be eligible for assistance, we will seek to enroll you in the Firdapse patient assistance program. We will handle the enrollment process for you by working with your healthcare provider and preparing all the required paperwork for your doctor to sign. We will also request your Firdapse medication refills on your behalf for up to 1 year once you are enrolled in the program.

Is NiceRx a Firdapse coupons provider?

At NiceRx, we help eligible individuals access the Firdapse patient assistance program. This means that we are not a Firdapse coupon, a Firdapse discount card, or a Firdapse copay card provider. We do not offer any medication trial offers or free Firdapse samples.

Can NiceRx help me get Firdapse if I have insurance?

We may be able to help you if you have insurance, including if your insurance company will not pay for your Firdapse medication, or you have a high copay or coinsurance responsibility. We may even be able to assist if you do not have insurance. Please fill in our enrollment application to find out more.

How much does Firdapse cost without insurance?

Firdapse costs without insurance will vary depending on how much you buy and the retailer you buy it from. As a guide, Firdapse oral tablets 10 mg will typically cost around $24,700 for 120 tablets. If you obtain your medication through NiceRx, you will pay a flat monthly rate of $49 per medication regardless of its retail price.

How much does Firdapse cost with insurance?

The copay of Firdapse will vary in line with the specific terms of your healthcare plan. For further details about what you may need to pay, your insurance provider or pharmacist will be able to calculate the copay costs with your current insurance.

What is Firdapse?

Firdapse (amifampridine) is an FDA (U.S. Food and Drug Administration) approved medication distributed by Catalyst Pharmaceuticals, Inc.

Firdapse is a potassium channel blocker indicated for the treatment of Lambert-Eaton myasthenic syndrome (LEMS) in adults. LEMS is a rare autoimmune neuromuscular disorder that results in progressive, debilitating muscle weakness and fatigue.

What doses of Firdapse are available?

Firdapse is available in tablet form, in the following doses: 10 mg.

The recommended starting dose is 15 mg to 30 mg daily by oral administration in divided doses (3 to 4 times daily). Starting dose is 15 mg daily for patients with renal or hepatic impairment and in known N-acetyltransferase 2 (NAT2) poor metabolizers.

If you miss a dose, skip that dose and take your next dose at your next scheduled dose time. Do not double your dose to make up for the missed dose.

Always speak with your healthcare provider about any changes to your dose so they can monitor and evaluate your condition.

Firdapse active ingredients

The active ingredient in Firdapse is amifampridine phosphate (chemically known as 3,4-diaminopyridine phosphate). The mechanism of action by which amifampridine exerts its therapeutic effect in LEMS patients has not been fully established.

Firdapse side effects

The most common side effects of Firdapse in clinical trials compared to placebo include:

  • Paresthesia
  • Upper respiratory tract infection
  • Abdominal pain (stomach pain)
  • Nausea, diarrhea, headache
  • Elevated liver enzymes
  • Back pain and muscle spasms
  • Hypertension (high blood pressure)

In rare instances, Firdapse can cause more serious adverse reactions. These can include:

  • Seizures
  • Hypersensitivity reactions

Your doctor will assess the benefits of using Firdapse against your risk of side effects. Get emergency medical advice if you have signs of an allergic reaction such as hives, difficult breathing, swelling of your face, lips, tongue, or throat. Patients are encouraged to report negative side effects or adverse reactions of Firdapse to the FDA. Visit, or call 1-800-FDA-1088.

Firdapse drug interactions

Firdapse can interact with other medications. These include:

  • Drugs that lower the seizure threshold may lead to an increased risk of seizures
  • Drugs with cholinergic effects may increase the cholinergic effects of Firdapse and of those drugs

This list is not exhaustive and other prescription drugs may interact with Firdapse.

Firdapse contraindications

You should not use Firdapse if you:

  • Are allergic to the active ingredient amifampridine
  • Are allergic to any of the other ingredients in Firdapse
  • Are pregnant or are planning to become pregnant
  • Have a history of seizures
  • Have a history of hypersensitivity to amifampridine or another aminopyridine

Talk to your doctor before using Firdapse if you:

  • Are taking any of the medications that could interact with Firdapse
  • Are breastfeeding or are planning to breastfeed

Firdapse generic

Firdapse is the trademark brand name for amifampridine distributed by Catalyst Pharmaceuticals, Inc. A generic version of amifampridine is not available. Generic drugs are generally cheaper than brand-name drugs, but you can still find Firdapse savings through NiceRx.

The content on this website is intended for information purposes only. It does not constitute medical advice. The information on this website should not be relied upon and is not a substitute for professional medical advice. You should always speak to your doctor regarding the risks and benefits of any treatment.