Ethionamide is an antibiotic that fights bacteria.
Ethionamide is used to treat tuberculosis (TB). Ethionamide must be given in combination with other tuberculosis medications and it should not be used alone.
Clumsiness or unsteadiness
mood or other mental changes
numbness, tingling, burning, or pain in hands and feet
yellow eyes or skin
Blurred vision or loss of vision, with or without eye pain
changes in menstrual periods
decreased sexual ability (in males)
difficulty in concentrating
dry, puffy skin
swelling of front part of neck
Some of the side effects that can occur with ethionamide may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:
Dizziness (especially when getting up from a lying or sitting position)
loss of appetite
nausea or vomiting
Less common or rare
Enlargement of the breasts (in males)
Treating certain bacterial infections. It may be used in combination with other medicines to treat acne or certain amoeba infections. It may be used to prevent certain types of malaria in travelers who will be visiting malaria-infected areas for less than 4 months. It may also be used to prevent or slow the progression of anthrax after exposure. Doryx delayed-release capsules are a tetracycline antibiotic. It works by slowing the growth of bacteria. Slowing the bacteria's growth allows the body's immune system to destroy the bacteria.