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Cycloserine

Generic Name: cycloserine (SYE kloe SER een)
Brand Name: Seromycin
Physician reviewed cycloserine patient information - includes cycloserine description, dosage and directions.
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Drug Information:
Cycloserine is an antibiotic that is used to treat tuberculosis (TB). Cycloserine is also used to treat bladder or kidney infections. Cycloserine is usually given after other medications did not work or have stopped working. Cycloserine may also be used for purposes not listed in this medication guide. Follow all directions on your medicine label and package. Tell each of your healthcare prOviders about all your medical conditions, allergies, and all medicines you use. You should not use cycloserine if you are allergic to it, or if you have: Learn more

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Cycloserine Side Effects

For the Consumer

Applies to cycloserine: oral capsule

Along with its needed effects, cycloserine 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 while taking cycloserine:

More common

  • Anxiety
  • confusion
  • dizziness
  • drowsiness
  • increased irritability
  • increased restlessness
  • mental depression
  • muscle twitching or trembling
  • nervousness
  • nightmares
  • other mood or mental changes
  • speech problems
  • thoughts of suicide

Less common

  • Convulsions (seizures)
  • numbness, tingling, burning pain, or weakness in the hands or feet
  • skin rash

Some side effects of cycloserine 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:

More common

  • Headache

For Healthcare Professionals

Applies to cycloserine: oral capsule

General

Cycloserine is most frequently associated with neurotoxicity and hypersensitivity.

Nervous system

Nervous system side effects may be dose-related (> 500 mg/day) and have included convulsions, drowsiness, somnolence, headache, tremor, dysarthria, vertigo, confusion, disorientation, loss of memory, psychoses, suicidal tendencies, character changes, hyperirritability, aggression, paresis, hyperreflexia, paresthesia, major and localized seizures, and coma.

Hematologic

Hematologic side effects have included vitamin B12 deficiency, folic acid deficiency, megaloblastic anemia, and sideroblastic anemia.

Hepatic

Hepatic side effects have included elevated serum transaminases, particularly in patients with preexisting liver disease.

Hypersensitivity

Hypersensitivity reactions have included skin rash.

Cardiovascular

Cardiovascular side effects have included sudden development of congestive heart failure in patients receiving high doses (1 to 1.5 g/day).

Editorial References and Review

Medically reviewed by USARx EDITORIAL TEAM Last updated on 1/1/2020.

Source: Drugs.com Cycloserine (www.drugs.com/mtm/cycloserine.html).