Riluzole
Riluzole 50MG
What is Riluzole?
Rilutek is a miscellaneous central nervous system drug used to treat Amyotrophic Lateral Sclerosis (ALS). Riluzole is the generic version of Rilutek. Rilutek costs around $2,678 for a supply of 60, 50 mg tablets, but luckily there are ways to save money. You can use our Rx.com Rilutek savings card to save significantly on the retail price at participating pharmacies near you.Side Effects
- Cough, trouble breathing
- Dark urine or pale stools, nausea, vomiting, loss of appetite, stomach pain, yellow skin or eyes
- Fever, chills, cough, sore throat, body aches
Warnings
- Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
- This medicine lowers the number of white blood cells. This weakens your immune system, so you may get infections more easily. Wash your hands often. Avoid people who are sick.
- Tell your doctor if you are pregnant or breastfeeding, or if you have liver disease or lung or breathing problems. Tell your doctor if you have Japanese ancestry.
- This medicine may cause the following problems:Liver problemsLung problems (including interstitial lung disease)
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
Prescription savings · · · ·
What is Riluzole ?
Rilutek is a miscellaneous central nervous system drug used to treat Amyotrophic Lateral Sclerosis (ALS). Riluzole is the generic version of Rilutek. Rilutek costs around $2,678 for a supply of 60, 50 mg tablets, but luckily there are ways to save money. You can use our Rx.com Rilutek savings card to save significantly on the retail price at participating pharmacies near you.- Cough, trouble breathing
- Dark urine or pale stools, nausea, vomiting, loss of appetite, stomach pain, yellow skin or eyes
- Fever, chills, cough, sore throat, body aches
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
- This medicine lowers the number of white blood cells. This weakens your immune system, so you may get infections more easily. Wash your hands often. Avoid people who are sick.
- Tell your doctor if you are pregnant or breastfeeding, or if you have liver disease or lung or breathing problems. Tell your doctor if you have Japanese ancestry.
- This medicine may cause the following problems:Liver problemsLung problems (including interstitial lung disease)
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
Riluzole Coupons & Prices
Riluzole 50MG
If you're comparing a riluzole coupon before you fill your ALS prescription, it helps to know that riluzole is a generic drug and pharmacy cash prices for it can vary widely from one store to the next — which is exactly why comparing matters. Rx.com checks pricing across 60,000+ U.S. pharmacies so you can see how your local options stack up before you pick where to fill, whether your prescription is for the standard tablet or one of the newer oral liquid or film versions.
What Is Riluzole and How Does It Work?
Riluzole is a benzothiazole medication approved by the FDA to treat amyotrophic lateral sclerosis (ALS, also called Lou Gehrig's disease) — it isn't approved for any other condition. It's thought to work by calming excess glutamate signaling in the nervous system (inhibiting glutamate release and NMDA/kainate receptor activity) and stabilizing voltage-dependent sodium channels, effects believed to help protect motor neurons. Riluzole doesn't reverse or cure ALS, but clinical studies have shown it can modestly slow disease progression.
The original brand name, Rilutek, has been discontinued in the United States, so riluzole tablets are now available only as generics. Two newer brand-name formulations are also on the market for patients who have trouble swallowing tablets: Tiglutik, an oral suspension (thickened liquid), and Exservan, an oral film that dissolves on the tongue. The standard dose across forms is 50 mg twice daily, taken on an empty stomach — one hour before or two hours after eating.
Riluzole Cost and How to Find the Best Price
Because riluzole tablets are generic, the cash price at the pharmacy counter isn't fixed — it can differ significantly depending on which pharmacy you use, even within the same city. That's the main reason a riluzole coupon search is worth doing before you fill: rather than assuming any one pharmacy has the best price, enter your ZIP code above to see today's price at pharmacies near you, compared side by side. If you're prescribed one of the brand-name liquid or film versions instead of the generic tablet, expect a different price point than the generic tablet — it's worth comparing those separately too.
The maker of Tiglutik also offers a manufacturer savings program for eligible patients, described on Tiglutik's official website; eligibility and terms vary and aren't guaranteed for every patient, so check current details directly with the manufacturer or your pharmacist. If you have insurance, your copay may end up lower than the cash price — it's worth comparing both before deciding how to fill.
Other ALS and Symptom-Management Medications
Riluzole is one of a small number of FDA-approved ALS treatments. Edaravone is another FDA-approved ALS treatment; whether it's appropriate alongside or instead of riluzole is a decision for your neurologist, based on your individual case. If riluzole is prescribed as an oral tablet but swallowing becomes difficult, ask your provider whether switching to the Tiglutik oral suspension or the Exservan oral film makes sense — these are still riluzole, just a different form.
ALS also commonly involves symptoms unrelated to riluzole's own effects, which is why a care team may separately prescribe baclofen for muscle spasticity or Nuedexta for pseudobulbar affect (uncontrollable laughing or crying episodes). These treat different symptoms and are not substitutes for riluzole itself.
Riluzole Safety Information
Riluzole carries several FDA warnings and precautions that require monitoring, though it does not carry a boxed warning. Liver injury (hepatotoxicity), including rare fatal cases, has occurred — your doctor should check liver function tests before you start, monthly for the first three months, and periodically afterward, and stop the drug if ALT rises above 5 times the upper limit of normal or signs of liver dysfunction appear. Riluzole has also been linked to neutropenia (a drop in infection-fighting white blood cells), most often within the first two months of treatment, so tell your doctor right away if you develop fever or signs of infection. Less commonly, riluzole has been associated with interstitial lung disease and with acute pancreatitis, which can occur anywhere from weeks to years after starting the drug.
The most common side effects, reported in 5% or more of patients and more often than with placebo, are weakness/fatigue (asthenia), nausea, decreased lung function, high blood pressure, and abdominal pain. Oral numbness or tingling (circumoral paresthesia) and dizziness can also occur, but at lower rates. This is general information, not medical advice — talk with your neurologist or pharmacist about what to watch for based on your own health history.
This Riluzole information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.
Verify the official label: Riluzole on DailyMed (FDA)
Reviewed against FDA labeling · Last reviewed July 2026
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Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.