Methotrexate Teva

Methotrexate, the active ingredient in Methotrexate Teva, is an antimetabolite presented as an injectable solution for intra‑arterial and intravenous use. It works by inhibiting dihydrofolate reductase, thereby reducing DNA synthesis in rapidly dividing cells. Clinically, it is used to manage certain hematologic malignancies, autoimmune arthritis, and severe psoriasis, providing disease control in adult and pediatric patients.

GNH USA supplies Methotrexate Teva as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, oncology centres and pharmacies worldwide. The company follows rigorous manufacturing and quality assurance protocols to ensure product integrity throughout global distribution.

Methotrexate is used across several disease families, primarily targeting malignant cell proliferation and immune‑mediated inflammation.

- Acute lymphoblastic leukemia: reduces leukemic cell growth and improves remission rates. - Non‑Hodgkin lymphoma: induces tumor cell death and contributes to disease control. - Rheumatoid arthritis: decreases joint inflammation and slows structural damage. - Psoriasis: limits skin cell hyperproliferation, leading to clearance of plaques.

Methotrexate may cause a range of adverse reactions, varying from mild to severe.

Common Side Effects: - Nausea - Vomiting - Fatigue - Mucositis (mouth sores) - Elevated liver enzymes - Cytopenias (low blood counts)

Serious or Rare Side Effects: - Severe liver toxicity (hepatic fibrosis or cirrhosis) - Pulmonary fibrosis or interstitial pneumonitis - Life‑threatening bone marrow suppression - Renal failure - Severe skin reactions such as Stevens‑Johnson syndrome - Opportunistic infections due to immunosuppression

Before initiating therapy, several safety measures should be observed.

- Liver monitoring: perform baseline and periodic liver function tests. - Renal monitoring: assess kidney function before and during therapy. - Hematologic monitoring: check complete blood counts regularly. - Pregnancy avoidance: contraindicated in pregnancy; use effective contraception. - Drug interactions: avoid concomitant use with NSAIDs and certain antibiotics that increase toxicity. - Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Methotrexate interacts with several medicines; awareness helps prevent toxicity.

Major Interactions (Avoid): - NSAIDs: may increase methotrexate plasma levels and toxicity. - Trimethoprim‑sulfamethoxazole: enhances myelosuppression risk. - Live vaccines: heightened risk of infection due to immunosuppression.

Moderate Interactions (Monitor Closely): - Azathioprine: additive immunosuppressive effect, monitor blood counts. - Phenytoin: may reduce methotrexate concentrations, adjust dose if needed. - Sulfonamides: potential for increased toxicity, require careful monitoring.