What is Mestinon (Pyridostigmine)?
Mestinon (pyridostigmine) is an acetylcholinesterase inhibitor that is most commonly prescribed for the treatment of symptoms associated with myasthenia gravis. It may be used by itself or alongside additional medications. This medication may also be used as a pretreatment in military or emergency settings for exposure to specific nerve agents such as soman, when used in combination with atropine and pralidoxime.
How is Mestinon Used?
Mestinon is available in tablet form and should be taken orally as instructed by the patient’s doctor. Patients should take only the exact dosage prescribed by their physician.
The tablets should not be broken, chewed, or crushed, and they should only be swallowed whole. If patients taking this medication experience an upset stomach, Mestinon may be taken with milk or with food to reduce the likelihood of any digestive side effects.
The timing of Mestinon administration plays a significant factor in its efficacy for treating the patient’s symptoms. Individuals using this medication should take their doses at the exact time as instructed by their prescribing physician to ensure the best possible outcome in managing their symptoms.
Additionally, based on the patient’s response to treatment, their physician may modify their dose as needed to ensure maximum safety and efficacy.
Storage
Mestinon should be stored in its original container, which contains a preservative canister to absorb moisture and protect the medication from any moisture-related damage. It is essential that this medicine remains dry and away from humidity or damp conditions. It must also avoid exposure to significant heat sources or high temperatures. It should be kept at room temperature.
Keep this medication out of the reach of children at all times.
Uses
Mestinon is prescribed for use in managing the following conditions:
- myasthenia gravis
- pretreatment for exposure to nerve agents
- Certain formulations of pyridostigmine may be used in specific clinical settings under healthcare provider supervision.
Customer Precautions
Do not take this medication if you have an allergy to Pyridostigmine or any ingredients in this Mestinon.
Speak to your doctor about any of your past or existing medical conditions, especially if you have:
- asthma or COPD
- intestinal or stomach blockage
- kidney or lung disease
- urinary blockage
- Slow or irregular heartbeat
- diabetes
Notify your doctor of any other medications, supplements, herbal medicines, or vitamins you currently take.
Consult your doctor if you are pregnant or breastfeeding.
Do not use this medication if you have bladder or bowel obstruction.
Before taking Mestinon, tell your doctor if you have asthma or kidney disease. Since this medication can cause blurred vision, do not drive or operate any heavy machinery after taking it. Do not drink alcohol after taking Mestinon, as it can increase certain side effects of Pyridostigmine.
The safety and effectiveness of pyridostigmine may vary depending on the indication and patient age. Pediatric use should follow healthcare provider recommendations and approved prescribing information.
How Does Mestinon Work?
This medication is an acetylcholinesterase inhibitor that inhibits the action of the anticholinesterase enzymes within the body. These enzymes break down the acetylcholine in a person’s system, contributing to reduced neurotransmitter activity that can result in certain individuals developing conditions such as myasthenia gravis, Alzheimer’s disease, and Parkinson’s disease.
Preventing the excessive breakdown of acetylcholine alleviates the symptoms associated with low levels of neurotransmitter activity involving acetylcholine.
Dosage
This medication is available in tablet form in the following strengths:
- 30 mg
- 60 mg
- 180 mg (extended-release)
The most common dose for those using the immediate-release tablets is 600 mg per day. This typically consists of the patient taking 10 of the 60 mg tablets, often split into multiple smaller doses to be taken throughout the course of the day. However, the dosage prescribed by a patient’s doctor may vary. This is why it is essential that patients using this medication follow their doctor’s instructions exactly to ensure that they are receiving the proper dosage sizes at the correct times of day for maximum safety and efficacy.
Patients using the extended-release tablets will typically consume a daily dose of 1 to 3 tablets either once or twice per day. Again, though, this may vary based on what the individual’s doctor has determined will be the safest and most effective dosing schedule to manage their symptoms, and patients using the extended-release tablets should take their medication exactly as instructed by their prescribing physician.
Overdose
If an overdose has occurred or is suspected, you should contact your physician or local Poison Control Center for further guidance.
Some of the symptoms one might experience when overdosing on this medication include the following:
- blurry vision
- breathing difficulties
- diarrhea
- drooling
- nausea
- stomach cramps
- sweating
- vomiting
If you or someone else have overdosed on this medication and lose consciousness or stop breathing, emergency medical attention should be sought immediately.
Additionally, some individuals may experience either no changes in their condition or a worsening of their myasthenia gravis symptoms as a result of overdosing on Mestinon.
Side Effects
The use of this medication is associated with a number of different side effects that may vary in severity. Please contact your prescribing physician if you have any questions or concerns or if your condition worsens or does not appear to be affected by your current dosage of the medication.
The most common side effects of taking Mestinon are as follows:
- anxiety
- blurry vision
- cold sweats
- diarrhea
- feeling panicky
- increased salivation (drooling)
- increased urge to urinate
- muscle weakness
- paleness of the skin
- sweating
- upset stomach
- vomiting
- watery eyes
Some of the following side effects may occur and should be reported to your doctor immediately if they occur while taking this medication:
- breathing difficulties
- confusion
- extreme itchiness or hives
- seizures
- severe skin rash
- slurring of one’s speech
Warnings & Precautions
This medication has potential health risks for patients with certain preexisting conditions. Please be sure to discuss your medical history and any current medications with your doctor before beginning treatment with Mestinon.
Bradycardia
Patients with a medical history including bradycardia (slow heart rate) or other cardiac conditions are at an increased risk of experiencing both heart block as well as a significant reduction in their heart rate due to Mestinon’s effect on the vagus nerve. Patients who are likely to be impacted by this risk should be sure to discuss any previous instances of bradycardia or other cardiac abnormalities with their physician before beginning treatment with this medication. Episodes of fainting have been reported in patients using this medication due to a slowed heart rate.
Bronchospasms
Individuals with asthma or chronic obstructive pulmonary disorder (COPD) are advised to exercise caution when taking this medication and may require special monitoring. As an acetylcholinesterase inhibitor, this medication may cause side effects such as increasing the bronchial secretions in a patient, causing additional constriction of the patient’s bronchi, and triggering bronchospasms. All three of these factors are capable of negatively impacting the conditions of those with asthma or COPD. Changes in the prescribed dosage of Mestinon may be made as needed for patients with preexisting respiratory conditions that still need to use this acetylcholinesterase inhibitor for treatment.
Coronary Artery Disease
Mestinon is associated with increased instances of coronary artery constriction occurring in those using the medication. Individuals with a history of atherosclerotic or ischemic heart disease should exercise caution when taking this medication and be sure to inform their doctor of any medical conditions that may be impacted by the constriction of the patient’s coronary arteries that may occur while using this medication for treatment.
Hyperthyroidism
Changes in a patient’s acetylcholine levels have been linked to a worsening of the symptoms associated with hyperthyroidism in individuals who have this condition and are taking this medication for treatment. Patients with a history of hyperthyroidism will often require regular monitoring of their thyroid levels throughout the duration of their use of Mestinon.
Parkinson’s Disease
The changes that occur in a patient’s acetylcholine levels while using Mestinon may cause a worsening of symptoms in those who are taking this medication and who also have Parkinson’s disease. Patients with this condition should exercise caution when using this medication or any other medications that affect cholinergic activity within the body, as these may cause a significant increase in Parkinson’s-related symptoms.
Peptic Ulcers
Mestinon is associated with a number of adverse side effects that impact the patient’s gut. Individuals with peptic ulcer disease are at an increased risk of gastric contractions and increased stomach acid production while using this medication. Patients with a history of gastrointestinal conditions, peptic ulcers, acid reflux, and other similar conditions should inform their prescribing physician of these aspects of their medical history before beginning treatment with this medication.
Seizures
This medication has been linked to instances of tremors, convulsions, and seizures occurring in some patients using it for treatment. Patients with a medical history that includes certain seizure disorders and other conditions that may increase the likelihood of them experiencing seizures and convulsions are advised to use extreme caution when taking Mestinon.
Additional Medical Conditions
If you have any of the following medical conditions, exercise caution when taking Mestinon and discuss your medical history with your doctor before beginning this medication:
- asthma
- bradycardia
- bronchospasm
- coronary artery disease
- hyperthyroidism
- kidney disease
- parkinsonism
- PUD
- seizures
Drug Interactions
Speak to your doctor about any medications or herbal supplements you are currently taking before beginning treatment with this medication. Discuss any concerns you may have with your doctor or a trusted pharmacist.
These medications and supplements are known to interact with Mestinon and may increase your chances of experiencing adverse side effects:
- alectinib
- amifampridine
- amikacin
- amikacin liposome
- ascorbic acid
- aspirin
- atropine
- belladonna
- benztropine
- betamethasone
- bethanechol
- biperiden
- brigatinib
- budesonide
- cellulose
- cetirizine (Zyrtec)
- cholecalciferol
- clidinium
- clozapine
- corticorelin
- corticotropin
- cortisone
- cosyntropin
- crizotinib
- cyanocobalamin
- darifenacin
- deflazacort
- dexamethasone
- dicyclomine
- disopyramide
- donepezil
- duloxetine (Cymbalta)
- echothiophate iodide ophthalmic
- edrophonium
- fingolimod
- flavoxate
- fludrocortisone
- gabapentin
- galantamine
- gentamicin
- glycopyrrolate
- hydrocortisone
- hyoscyamine
- ivabradine
- kanamycin
- lasmiditan
- levothyroxine (Synthroid)
- lisinopril
- melatonin
- mepenzolate
- methscopolamine
- methylcellulose
- methylprednisolone
- midodrine
- montelukast (Singulair)
- mycophenolate mofetil (CellCept)
- neomycin
- neostigmine
- netilmicin
- omeprazole
- ondansetron (Zofran)
- oxybutynin
- ozanimod
- paromomycin
- physostigmine
- plazomicin
- ponesimod
- prednisolone
- prednisone
- procainamide
- procyclidine
- propantheline
- quinidine
- rivastigmine
- scopolamine
- siponimod
- solifenacin
- streptomycin
- succinylcholine
- tacrine
- thalidomide
- tobramycin
- tolterodine
- tramadol
- trazodone
- triamcinolone
- triamcinolone ophthalmic
- trihexyphenidyl
- trospium
- vitamin B12
- vitamin C
- vitamin D3
Alternative Medications
For patients who are unable to take Mestinon or experiencing significant adverse side effects, alternative medications may be used to treat some of the associated conditions for which this medication is commonly prescribed:
- azathioprine (Azasan, Imuran)
- cyclophosphamide (Cytoxan, Neosar)
- cyclosporine (Neoral, Sandimmune)
- eculizumab (Soliris)
- methotrexate
- mycophenolate mofetil (CellCept)
- neostigmine (Prostigmin)
- prednisone
- ravulizumab (Ultomiris)
- tacrolimus (Prograf)
Cost & Ordering Information
Buy Mestinon Through Buy Canadian Insulin
Buy Canadian Insulin helps patients access Mestinon (pyridostigmine) prescription options through participating pharmacy partners.
Pricing may vary depending on product strength, quantity selected, supplier availability, and participating pharmacy partner pricing policies.
Some patients may find pricing through participating pharmacy partners that differs from certain U.S. retail pharmacy prices.
Available services may include:
- Pricing options based on prescribed Mestinon strengths and quantities
- Prescription processing through participating pharmacy partners
- Shipping options available across eligible U.S. delivery locations
- Ordering support through phone, email, or live chat
- Multiple quantity options depending on prescription authorization and supplier availability
A valid prescription is required for Mestinon. Prescription orders are subject to review and approval by a licensed healthcare professional and pharmacist before dispensing, where applicable.
Shipping timelines may vary depending on prescription review requirements, inventory availability, destination location, and carrier services.
Mestinon Discounts and Coupons
Eligible first-time customers may use coupon code FIRST10 during checkout for qualifying orders, subject to current promotional terms and conditions.
Ordering Information
Have a prescription?
Patients may explore available Mestinon prescription options through participating pharmacy partners.
Available ordering features may include:
- Pricing options based on quantity selected
- Multiple quantity options depending on prescription details
- Shipping options with tracking availability when provided by the carrier
- Customer support assistance through phone, email, or live chat
- Online and phone ordering availability
Storage and Shipping Information
Mestinon should be stored according to the product labeling and instructions provided by the dispensing pharmacy.
Orders are packaged according to pharmacy handling and shipping procedures. Patients should follow all storage instructions provided with their medication upon delivery.
Customer Support & Business Information
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About Buy Canadian Insulin Services
Buy Canadian Insulin works with participating pharmacy partners to help patients access Mestinon and other prescription medications.
Product availability, pricing, and shipping timelines may vary depending on supplier inventory, participating pharmacy partner availability, and destination location.
Some prescription orders may be fulfilled through licensed pharmacy partners located in Canada or other international fulfillment locations depending on product availability.
Orders are packaged according to pharmacy handling and shipping procedures.
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Disclaimer
Buy Canadian Insulin provides educational information about medications and health conditions for informational purposes only. This content is not intended to replace professional medical advice, diagnosis, or treatment. Prescription medications require valid prescription review and processing through participating pharmacy partners. Product availability, pricing, and shipping timelines may vary. Consult your healthcare provider or pharmacist before starting, stopping, or changing any medication.
