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What are the possible side effects of ethambutol (Myambutol)?

If you experience any of the following serious side effects, stop taking ethambutol and seek emergency medical attention or contact your doctor immediately:

• an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives);
• vision changes (e.g., blurring, red-green color blindness);
• a rash;
• numbness or tingling in your fingers, toes, hands, or feet;
• confusion, disorientation, or hallucinations; or
...

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What are the precautions when taking ethambutol (Myambutol)?

Before taking ethambutol, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: eye problems (such as optic neuritis, cataracts, diabetic retinopathy), liver disease, kidney disease, alcohol use.

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

Alcohol may increase the risk of liver disease. Avoid alcoholic beverages while using this medication.

During pregnancy, this...

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