Pyridostigmine Bromide Er
pyRIDostigmine Bromide ER 180MG
What is Pyridostigmine Bromide Er?
Mestinon is a CNS agent used to treat myasthenia gravis. Pyridostigmine is the generic version. On average Mestinon is priced at about $1,129 for a supply 90 tablets, 60mg. Luckily, you can use our Rx.com savings offer to receive an average Mestinon discount of up to 80% off the retail price at participating pharmacies near you.Side Effects
- Skin rash, itching, or hives
- Seizures
- Trouble breathing
Warnings
- Talk with your doctor if you are pregnant, breastfeeding, or have asthma, heart disease, an enlarged prostate, or intestinal or urinary blockage. Tell your doctor if you become pregnant while taking this medicine.
- This medicine may cause confusion or blurred vision. Be careful when driving a car or using machinery.
- Trouble breathing
- Slurred speech
- Confusion
Prescription savings · · · ·
What is Pyridostigmine Bromide Er ?
Mestinon is a CNS agent used to treat myasthenia gravis. Pyridostigmine is the generic version. On average Mestinon is priced at about $1,129 for a supply 90 tablets, 60mg. Luckily, you can use our Rx.com savings offer to receive an average Mestinon discount of up to 80% off the retail price at participating pharmacies near you.- Skin rash, itching, or hives
- Seizures
- Trouble breathing
- Slurred speech
- Confusion
- Irregular heartbeat
- Watering eyes
- Talk with your doctor if you are pregnant, breastfeeding, or have asthma, heart disease, an enlarged prostate, or intestinal or urinary blockage. Tell your doctor if you become pregnant while taking this medicine.
- This medicine may cause confusion or blurred vision. Be careful when driving a car or using machinery.
- Trouble breathing
- Slurred speech
- Confusion
- Irregular heartbeat
Pyridostigmine Bromide Er Coupons & Prices
pyRIDostigmine Bromide ER 180MG
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Pyridostigmine bromide extended-release tablets are the generic form of an extended-release cholinesterase inhibitor used to manage myasthenia gravis, sold under the brand name Mestinon Timespan. Because this is a generic drug, prices can vary a lot from one pharmacy to the next. If you're looking for a pyridostigmine bromide ER coupon, enter your ZIP above to compare prices at pharmacies near you before you fill.
What is pyridostigmine bromide ER and how does it work?
Pyridostigmine bromide is a cholinesterase inhibitor used for the symptomatic treatment of myasthenia gravis, a chronic autoimmune condition that causes muscle weakness. It works by blocking the breakdown of acetylcholine, the chemical messenger that signals muscles to contract, which helps improve muscle strength and function. The extended-release (Timespan) tablet is a wax-matrix formulation designed to release the medication slowly, and it's typically taken at bedtime to help control weakness overnight and in the early morning.
The extended-release tablet must be swallowed whole. Crushing, splitting, or chewing it can release the full dose at once instead of gradually.
Comparing prices without insurance
Pyridostigmine bromide extended-release tablets are made by several generic manufacturers, and cash prices for the same generic drug can differ significantly between pharmacies in the same town. Rx.com compares prices across more than 60,000 U.S. pharmacies, so whether you have insurance, a high deductible, or no coverage at all, you can see which pharmacy has the lowest price today. Enter your ZIP code above and search for pyridostigmine bromide ER to compare.
Regular-release pyridostigmine and other myasthenia gravis treatments
Pyridostigmine is also available as an immediate-release tablet and an oral solution, which some patients use during the day alongside the extended-release tablet at night; these are different products with different dosing schedules, and switching between forms should only be done with your prescriber's guidance. For patients whose symptoms aren't adequately controlled on pyridostigmine alone, doctors may add other myasthenia gravis therapies, including immunosuppressants or newer targeted biologic treatments. Talk to your neurologist about what combination is right for you.
Safety information
Pyridostigmine should not be used if you have a mechanical intestinal or urinary tract obstruction. Tell your doctor about any history of asthma, heart disease, or kidney problems, since dose adjustments may be needed. Taking too much pyridostigmine can cause a cholinergic crisis, with symptoms like increased weakness, excessive salivation, sweating, nausea, or slowed heart rate; this is a medical emergency. Because too little medication can also cause worsening muscle weakness that can look similar, never change your dose without talking to your prescriber first. This information is not a substitute for medical advice — always follow your doctor's instructions.
This Pyridostigmine Bromide Er 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: Pyridostigmine Bromide Er 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.