Trecator
Trecator (ethionamide) is a prescription antibiotic used to treat tuberculosis (TB) when first-line medications are not suitable or effective. It belongs to a class of drugs called thioamides and is typically used in combination with other anti-TB medications as part of a comprehensive treatment regimen. This medication works by inhibiting the growth of Mycobacterium tuberculosis bacteria.
Trecator is an antibiotic used to treat tuberculosis infections when other first-line treatments are not appropriate.
Key facts at a glance
- RxNorm
- 835718
- Generic
- Trecator
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Trecator is used to treat active pulmonary and extrapulmonary tuberculosis, particularly in cases of drug-resistant TB or when patients cannot tolerate first-line TB medications like isoniazid or rifampin. It is always used as part of a multi-drug regimen to prevent bacterial resistance.
Trecator contains ethionamide, which inhibits the synthesis of mycolic acids—essential components of the mycobacterial cell wall. By disrupting cell wall formation, the medication prevents the growth and replication of Mycobacterium tuberculosis bacteria.
Trecator should only be used under medical supervision with regular monitoring of liver function and blood glucose levels. Common side effects may include gastrointestinal disturbances, hepatotoxicity, and neurological symptoms. Alcohol should be avoided during treatment. Patients should complete the full course of therapy as prescribed, even if symptoms improve, to prevent resistance and ensure successful treatment.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy