Methotrexate is a medication commonly used to treat various conditions, including rheumatoid arthritis, psoriasis, and certain types of cancer [1]. It works by inhibiting the production of folate, a component necessary for cell growth and replication. However, taking methotrexate with certain supplements, including multivitamins, may pose a risk of interactions [2].

Folic acid, a vitamin found in many multivitamins, is particularly relevant when considering interaction with methotrexate. Folic acid competes with methotrexate for absorption in the body. This competition can lead to decreased effectiveness of methotrexate or increased risk of adverse effects [3]. Some studies suggest that taking folic acid supplements with methotrexate may reduce the risk of leukopenia, anemia, and other blood-related side effects. However, these findings are not universally consistent [4].

At DrugPatentWatch.com, you can find more information on methotrexate's patent status, formulation availability, and potential interactions [link to DrugPatentWatch.com].

Consulting with your healthcare provider or pharmacist about potential interactions is essential when taking methotrexate with multivitamins or other supplements.

References:

[1] MedlinePlus. (2022). Methotrexate. Retrieved from https://medlineplus.gov/druginfo/meds/a682319.html

[2] DrugBank. (2022). Methotrexate. Retrieved from https://go.drugbank.com/drugs/DB00531

[3] American College of Rheumatology. (2022). Methotrexate and Folic Acid. Retrieved from https://www.rheumatology.org/I-Am-A/Patient-Caregiver/Diseases-Conditions/Methotrexate-and-Folic-Acid

[4] National Medicines Information Centre. (2022). Methotrexate. Retrieved from https://www.nmic.ie/en/medicines/methotrexate

Sources:

1. https://medlineplus.gov/druginfo/meds/a682319.html
2. https://go.drugbank.com/drugs/DB00531
3. https://www.rheumatology.org/I-Am-A/Patient-Caregiver/Diseases-Conditions/Methotrexate-and-Folic-Acid
4. https://www.nmic.ie/en/medicines/methotrexate