Mestinon SR (Pyridostigmine)

Mestinon SR

(Brand Option)

Prescription RequiredPrescription Required
FormulationFormulation: ER Tablet
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$62.00 ($2.07 per tablet)

$145.00 ($1.61 per tablet)


(Generic Alternative)

Prescription RequiredPrescription Required

This generic medication is not available at the moment.

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Mestinon SR (pyridostigmine) is a medication that is primarily indicated for the treatment of myasthenia gravis (MG) and congenital myasthenic syndrome. It is used to increase muscle strength by preventing the breakdown of acetylcholine, a natural substance that the body needs for muscles to work properly.


  • Mestinon SR is taken by mouth with or without food as directed by your healthcare provider.
  • Take the tablet as directed by your healthcare provider, usually 1 to 2 times daily, with at least 6 hours between doses.
  • Swallow the whole or split tablet without crushing or chewing, unless they have a score line and your healthcare provider tells you to do so.
  • The dosage of Mestinon SR is based on your medical condition and response to treatment.
  • Use Mestinon SR regularly to get the most benefit from it.
  • The tablet may become discolored due to moisture, but this does not affect how well the medication works.
  • If your condition does not improve or gets worse, consult your healthcare provider.


  • Do not crush or chew the tablets, as doing so can release all of the drug at once, increasing the risk of side effects.
  • Do not increase your dose or use this drug more often or for longer than prescribed.

Common Side Effects:

  • Gastrointestinal effects, including nausea, vomiting, diarrhea, abdominal cramps, and increased salivation
  • Muscle weakness or twitching
  • Excessive sweating, especially in hot weather or during physical activity
  • Urinary frequency
  • Dizziness or fainting

Allergic Reactions: 

  • Although rare, allergic reactions to Mestinon SR can occur. Seek immediate medical attention if you experience symptoms such as rash, itching, swelling, severe dizziness, or difficulty breathing.

This is not an exhaustive list of side effects, and individual experiences may vary. If you are taking Mestinon SR and experience any concerning or persistent side effects, consult your healthcare provider for further evaluation and guidance.

If you have a known allergy to Mestinon or any of its ingredients, inform your healthcare provider. Allergic reactions to Mestinon can be severe and require immediate medical attention.

Before taking Mestinon SR, discuss your health history with your healthcare provider. Mestinon may not be suitable for individuals with certain medical conditions, such as asthma, heart disease, gastrointestinal obstruction, or urinary tract blockage. Inform your healthcare provider about any pre-existing medical conditions you have.

If you are pregnant, planning to become pregnant, or breastfeeding, consult your healthcare provider before taking Mestinon SR. They will weigh the potential benefits against the potential risks for you and your baby.

Mestinon SR may interact with other medications, including certain antibiotics, anticholinergic drugs, and muscle relaxants. Inform your healthcare provider about all the medications you are taking, including prescription, over-the-counter, and herbal products.

This is not an exhaustive list of warnings and precautions. Always consult your healthcare provider for personalized advice and information regarding the use of Mestinon SR, taking into account your specific medical history and circumstances.

Generic name:



ER Tablet

Strength(s): 180mg
Quantities Available: 30, 90
Important Information
The information above for Mestinon SR (Pyridostigmine) was provided to by third parties. In no way should this information substitute for the advice of a physician. Consult a doctor or qualified health care professional if you have any medical concerns. widget logo
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