Methotrexate
Mtx Support is a brand-name supportive care medication designed to help manage side effects associated with methotrexate therapy, commonly used in patients being treated for autoimmune conditions such as rheumatoid arthritis or psoriasis, or certain types of cancer. It typically contains folic acid and may include other B vitamins to counteract methotrexate's effects on folate metabolism, helping to reduce common side effects like nausea, fatigue, and mouth sores. This medication is always used as an adjunct to methotrexate treatment and should be taken according to a healthcare provider's specific instructions regarding timing and dosage.
Mtx Support is a brand-name supplement used alongside methotrexate therapy to help reduce side effects and support patients undergoing treatment for autoimmune conditions or certain cancers.
Key facts at a glance
- RxNorm
- 1150288
- Generic
- Mtx Support
- 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.
Mtx Support is indicated as a supportive measure for patients receiving methotrexate therapy for conditions such as rheumatoid arthritis, psoriasis, psoriatic arthritis, lupus, or certain chemotherapy protocols. It helps manage methotrexate-related side effects and supports overall treatment tolerance.
The exact mechanism varies by formulation, but Mtx Support typically provides folic acid or folinic acid to counteract methotrexate's inhibition of folate metabolism. By supplementing folate stores, it helps reduce toxic effects on rapidly dividing cells (such as those lining the digestive tract and bone marrow) while theoretically preserving methotrexate's therapeutic anti-inflammatory or anticancer effects.
Mtx Support should only be used under medical supervision and as directed by a healthcare provider. Timing of administration relative to methotrexate dosing is critical—typically folic acid is taken on days not receiving methotrexate. Patients should not take additional folate supplements without consulting their doctor, as this may interfere with treatment efficacy. Regular monitoring of blood counts and liver function may still be required during methotrexate therapy.
Official drug label
WellAlly may earn a referral fee from linked resources at no extra cost to you. Editorial content is never influenced by commercial relationships.
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 July 26, 2026. · Read our editorial policy