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Medications and Drugs

Brand Names: Seromycin

Generic Name: cycloserine (Pronunciation: sye kloe SER een)

What is cycloserine (Seromycin)?

Cycloserine is an antibiotic. It prevents tuberculous bacteria from growing in your body.

Cycloserine is used to treat tuberculosis (TB).

Cycloserine is also sometimes used to treat urinary tract and other types of infections that have not responded to other treatments.

Cycloserine may also be used for purposes other than those listed in this medication guide.

What are the possible side effects of cycloserine (Seromycin)?

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

  • an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives);
  • seizures;
  • numbness or tingling in your hands or feet;
  • a skin rash;
  • confusion or abnormal behavior;
  • tremors (shaking);
  • headache;
  • drowsiness;
  • dizziness;
  • difficulty speaking; or
  • irritability.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about cycloserine (Seromycin)?

Take all of the cycloserine that has been prescribed for you even if you begin to feel better. Your symptoms may begin to improve before the infection is completely treated.

Avoid alcohol while taking cycloserine. Alcohol will increase your risk of having a seizure during cycloserine treatment. Alcohol will also increase dizziness and drowsiness.

Use caution when driving, operating machinery, or performing other hazardous activities. Cycloserine may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities.

Call your doctor immediately if you experience a skin rash, mental confusion, dizziness, headache, or tremors (shaking).



Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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