Ethionamide Side Effects
What should I watch for?
Visit your doctor or health care professional for regular check ups. You will need blood work done regularly. Have your eyes examined as directed by your doctor.
If you have stomach upset, talk with your doctor. Do not stop taking this medicine. The side effects may get better with time.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.
If you are diabetic check your blood sugar as directed. This medicine may lower your blood sugar levels. Talk to your doctor about what your blood sugar should be and when to contact them.
This medicine may cause a decrease in vitamin B6. You should make sure that you get enough vitamin B6 while you are taking this medicine. Discuss the foods you eat and the vitamins you take with your health care professional.
Common and Rare Side Effects
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:
Clumsiness or unsteadiness
numbness, tingling, burning, or pain in the hands and feet
yellow eyes or skin
Blindness or vision changes
blue-yellow color blindness
blurred vision or loss of vision, with or without eye pain
burning, crawling, itching, numbness, painful, prickling, "pins and needles", or tingling feelings
changes in menstrual periods
decreased sexual ability (in males)
difficulty in concentrating
dry, puffy skin
increased sensitivity of the skin to sunlight
joint pain, stiffness, or swelling
redness or other discoloration of the skin
swelling of the eyelids, face, lips, hands, or feet
swelling of the front part of the neck
tightness in the chest
troubled breathing or swallowing
weakness in the hands or feet
Some 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. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Abdominal or stomach pain
increased watering of the mouth
loss of appetite
swelling or inflammation of the mouth
Incidence not known
Blemishes on the skin
decreased interest in sexual intercourse
enlargement of the breasts (in males)
inability to have or keep an erection
loss in sexual ability, desire, drive, or performance
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.