Buy Mestinon SR Online (Pyridostigmine Bromide ER)
What is Mestinon SR?
What is Mestinon SR?
Mestinon SR is a medication used in the treatment of myasthenia gravis. Also, it is used to reverse the effect of certain muscle relaxants. Some common side effects include stomach pain and muscle cramps.
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Purchase Mestinon SR from Universal Drugstore today and save!
Select your dosage:
- All Strength's
- 180mg
Mestinon SR brand
Mestinon SR 180mg
Prescription RequiredProduct of Canada
Product of Australia
Pyridostigmine Bromide ER (generic Mestinon SR)
Pyridostigmine Bromide ER 180mg
Prescription RequiredProduct of India
Marketed as Gravitor SR in India.
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Important information about Mestinon SR
The active ingredient in Mestinon SR is pyridostigmine bromide. It is an acetylcholinesterase inhibitor that acts to prevent the breakdown of acetylcholine, so it stays longer at the neuromuscular junction, which is found between nerve cells. This medication helps with symptoms of muscle weakness and restores muscle strength.
Follow all directions given to you by your doctor and read all documents provided, including the full Prescribing Information, FDA-Approved Product Labeling, Instructions for Use, and Medication Guide, before using Mestinon SR. However, the following is a synopsis of the general guidelines for the use of Mestinon SR:
- This medication can be taken once or twice a day, but should be spaced by 6 hours. The extended-release tablet should be swallowed whole and taken with food if stomach upset occurs.
- In the case of missed doses, skip it and take the next dose at the intended time.
Some common side effects of Mestinon SR include:
- Nausea or vomiting
- Diarrhea
- Stomach cramps
- Muscle cramps
- Muscle twitching
- Excessive salivation
Some individuals may experience serious side effects while using Mestinon SR. These side effects may require immediate medical attention. If you experience any of the following, contact your healthcare provider or seek emergency medical help:
- Myasthenic crisis: muscle weakness and difficulty breathing
- Allergic reaction: skin rash or hives, swelling of the face or lips, or trouble breathing
These are not all of the possible side effects of Mestinon SR. You should always seek medical advice from your healthcare provider for any questions or concerns about your medical condition or treatment. Read all patient information, medication guides, or drug information sheets that come with this medication. You can also report adverse effects to the Food and Drug Administration at www.fda.gov/medwatch or 1-800-FDA-1088.
Before starting Mestinon SR, it is crucial to discuss any existing health conditions with your healthcare provider. You should be sure that your healthcare provider is aware of all your medical conditions, including whether you have:
- Known allergy to the medication or any of the inactive ingredients
- Have a urinary obstruction
- History of asthma
- Kidney disease
- Smoke, drink alcohol, or use illegal drugs
- Known allergy to Mestinon SR or any of its inactive ingredients
- Known allergy to medications within the same drug class
- Blockage in the intestines or urinary tract
This medication will take a few hours to begin working.
When Mestinon SR is taken with other prescription drugs, over-the-counter medications, vitamins, and supplements, it may change how they work or increase the frequency or severity of side effects. Make sure that you tell your healthcare professional about anything that you are taking to avoid any negative drug interactions, including:
The dosage forms include sustained-release tablets, oral solution, and immediate-release tablets. For the extended-release tablet, a 180 mg tablet can be taken orally once or twice daily.
This medication should be stored at room temperature and in a dry place.
The pharmaceutical company that manufactures Mestinon SR is Bausch Health.
There are lower-cost alternatives for the brand-name Mestinon SR.
This medication can be stopped without tapering. However, discuss this with your doctor before stopping any medication.
There is no information on whether this medication can affect your unborn baby. Talk to your doctor if you are already pregnant or if you have any plans to become pregnant. They will know or recommend what is best for you.
It is not known if this medication can pass through the breastmilk and affect your baby. Talk to your doctor if you are already breastfeeding or if you have any plans to breastfeed. They will know or recommend what is best for you.
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Click to joinImportant information about buying Mestinon SR from UniversalDrugstore™
Once you complete your order, we process, verify, and dispatch your medication. You’ll receive email updates at each stage, including tracking details once your order ships. If any additional documentation is needed (such as a valid prescription), we’ll contact you promptly. Once approved, your order is charged and delivered directly to your doorstep.
Orders are typically processed within 1–3 business days once all required documents are received and approved. Standard delivery times range from 10–18 business days, depending on your location.
Yes! Once your medication ships, you will receive an email with tracking information so you can monitor your shipment every step of the way.
Our Customer Care team is available 24/7 to assist with any order-related concerns or questions. If you experience delays, missing items, or need support, contact us using the details provided in your confirmation email.
All orders are shipped in discreet, plain packaging to protect your privacy. Medications are securely packaged to prevent damage and ensure they arrive in top condition.
Yes. We use cold-chain shipping methods to safely transport temperature-sensitive medications, ensuring they maintain proper storage conditions throughout delivery.
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Currently, we do not bill Medicare or Medicaid directly. However, we provide detailed receipts and documentation that you can submit to your insurance provider for potential reimbursement.
Universal Drugstore does not bill private health insurance directly, but we provide a detailed invoice that you can submit to your insurer for possible reimbursement. Many insurers will accept Universal Drugstore’s documents, but if you have any questions, check with your insurance company prior to purchasing.
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Universal Drugstore offers many generic alternatives that provide the same active ingredients at a lower cost. Search for your medication and compare pricing for generic vs. brand-name options. Generic availability depends on the medication.
If your medication requires a prescription, you must upload it online, via email, or fax. Over-the-counter (OTC) medications do not require a prescription. All prescription medication purchases require a valid and approved prescription. The Universal Drugstore customer care team can contact your doctor directly to get your prescription, and ensure all information is up to date.
Yes! You can add multiple medications to your cart, including prescription, OTC, and pet medications, and complete your purchase in a single checkout process.
Yes! If your prescription includes refills, you can reorder quickly by logging into your account and selecting your medication for a hassle-free refill process. Always refill your medication proactively and ontime, to ensure you do not run out of important medication.
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The information, including but not limited to, text, graphics, images and other material contained on this website are for informational purposes to increase health awareness only. No material on this site is intended to be a substitute for professional medical advice, diagnosis or treatment.
Always seek the advice of your physician or other qualified health care provider with any questions you may have regarding a medical condition or treatment and before undertaking a new health care regimen, and never disregard professional medical advice or delay in seeking it because of something you have read on this website.

Jamie Winn, PharmD, is a licensed pharmacist and seasoned medical content reviewer with over 20 years of experience in clinical pharmacy, patient care, and healthcare leadership.
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Shirley is a Medical Writer and first-year Doctor of Pharmacy (PharmD) student at the University of Alberta, where she is building on her strong foundation in health sciences and patient care.
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