Mestinon (Pyridostigmine Bromide)

Complete patient guide for uses, dosage, side effects, and safety information

Prescription Required

Quick Facts

Generic Name
pyridostigmine bromide
Drug Class
cholinergic antimyasthenics
Used For
treating myasthenia gravis
How Taken
oral tablets, typically one to three times daily

What Is Mestinon Used For?

Mestinon is a medication that helps manage muscle weakness and fatigue associated with myasthenia gravis.

Primary Uses

It is primarily used to treat myasthenia gravis, a condition characterized by muscle weakness and fatigue.

How It Works

Mestinon works by preventing the breakdown of acetylcholine, a chemical necessary for stimulating muscle movement.

Good to know: Mestinon is not considered addictive.

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How to Take Mestinon

Follow your doctor's instructions for taking Mestinon to ensure effective treatment.

Dosage Instructions

The usual adult dosage is one to three Mestinon 60 mg tablets taken two to four times a day. In severe cases, one to three Mestinon Timespan 180 mg tablets may be taken once or twice daily.

What If You Miss a Dose?

If you miss a dose, take it as soon as you remember. If it's almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not take a double dose.

Important: Never double your dose to make up for a missed one.

Available Tablet Strengths

10mg
10mg Tablet White to off-white, Round • none
60mg
60mg Tablet Pale orange, Round • none
180mg
180mg Tablet Grey-yellow, Biplanar • M180

Side Effects

Like all medications, this medicine can cause side effects. Most are mild and temporary, but some require medical attention.

Common Side Effects

These side effects occur relatively frequently and usually don’t require emergency care:

  • nausea and vomiting
  • diarrhea
  • stomach cramps or pains
  • increased saliva
  • chest congestion
  • low blood pressure
  • skin rash
  • muscle cramps and twitching
  • excessive sweating

Seek immediate medical attention if you experience:

  • slowed heart rate
  • shortness of breath
  • severe rash
  • irritation
  • swollen face

Impulse Control Issues

No specific information on impulse control issues was mentioned.

Important Warnings

Be aware of the following warnings before taking Mestinon.

Who Should Not Take Mestinon

Do not take Mestinon if you are allergic to pyridostigmine bromide or any of its ingredients, or if you have intestinal blockage or urinary tract issues.

Medical Conditions to Discuss

Discuss any history of epilepsy, lung problems (like asthma), heart issues, stomach ulcers, kidney or thyroid problems with your doctor.

Pregnancy and Breastfeeding

Consult your doctor if you are pregnant, plan to become pregnant, or are breastfeeding, as some newborns may experience temporary muscle weakness if their mothers took antimyasthenics during pregnancy.

Elderly Patients With Dementia: Caution is advised for elderly patients, especially those with dementia.

Drug Interactions

Some medications may interact with Mestinon and affect its effectiveness.

Grapefruit interaction: Consult your doctor about potential interactions with grapefruit.

  • muscle relaxants (e.g., suxamethonium)
  • atropine (used for travel sickness and stomach cramps)
  • aminoglycoside antibiotics (e.g., gentamicin)
  • some general and local anesthetics
  • medications for abnormal heart rhythms
  • methocarbamol (for muscle pain and spasms)
  • dexpanthenol

Alcohol & Driving

Be cautious with alcohol consumption and operating machinery while taking Mestinon.

Alcohol

Discuss alcohol use with your doctor.

Driving and Operating Machinery

Exercise caution when driving or using machinery until you know how Mestinon affects you.

Temperature Regulation

No specific temperature regulation warnings were mentioned.

Storage

Store Mestinon tablets in their original container in a cool, dry place away from moisture and heat. Keep out of reach of children.

Overdose Information

If you suspect an overdose, seek immediate medical attention. Contact the Poisons Information Centre at 13 11 26 or go to the nearest hospital.

Frequently Asked Questions

Mestinon typically begins to work within 30 to 45 minutes after taking it.

You can take Mestinon with food, but it may be more effective if taken before meals.

No, Mestinon is not considered addictive.

Consult your doctor before stopping Mestinon, as sudden discontinuation may affect your condition.

Discuss your alcohol consumption with your doctor while on Mestinon.

Weight gain is not mentioned as a side effect of Mestinon.

Elderly patients should use Mestinon with caution, especially those with dementia.

If you miss a dose, take it as soon as you remember, but skip it if it's almost time for your next dose.

Important Disclaimer

This information is intended for general educational purposes only and should not be considered medical advice. Always consult your healthcare provider or pharmacist before starting, stopping, or changing any medication.

If you think you may have a medical emergency, call your doctor or emergency services immediately.

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