Part Two of Mestinon Information, Focusing on Side Effects, Discontinuation or Withdrawal Effects, and Additional Information

This second section of our medication database entry focuses on potential side effects, withdrawal or discontinuation effects, and additional information, while part one covers basic drug characteristics, uses and benefits.

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Side Effects of Mestinon

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

  • Symptoms of overdose
    • Blurred vision; clumsiness or unsteadiness; confusion; convulsions (seizures); diarrhea (severe); increase in bronchial secretions or watering of mouth (excessive); increasing muscle weakness (especially in the arms, neck, shoulders, and tongue); muscle cramps or twitching; nausea or vomiting (severe); shortness of breath, troubled breathing, wheezing, or tightness in chest; slow heartbeat; slurred speech; stomach cramps or pain (severe); unusual irritability, nervousness, restlessness, or fear; unusual tiredness or weakness

Also, check with your doctor as soon as possible if any of the following side effects occur:

  • Rare
    • Redness, swelling, or pain at place of injection (for pyridostigmine injection only); skin rash (does not apply to ambenonium)

Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:

  • More common
    • Diarrhea; increased sweating; increased watering of mouth; nausea or vomiting; stomach cramps or pain
  • Less common
    • Frequent urge to urinate; increase in bronchial secretions; unusually small pupils; unusual watering of eyes

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.

Limitations and the Source of Our Online Medication Information Database

Although we have made considerable efforts to ensure that the information provided here is accurate, up-to-date, and complete, MedLibrary.org makes no guarantee to that effect. Drug information contained herein may be time sensitive. This medication information does not endorse drugs, diagnose patients or recommend any specific pharmacotherapy. This is an educational resource only -- intended to supplement but not to replace the expertise, skill, knowledge and judgment of medically qualified healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, please check with your doctor, nurse or local pharmacist. MedLibrary.org does not assume any responsibility for any aspect of healthcare administered with the aid of information provided here.

Revised: 07/18/1994

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