Injexate

Methotrexate, the active ingredient in Injexate, is an antimetabolite (folate antagonist) presented as an injectable for intravenous or subcutaneous use. It is employed as an immunosuppressant and antineoplastic agent to manage autoimmune disorders and certain cancers in adult and pediatric patients. The drug works by interfering with DNA synthesis, which reduces abnormal cell proliferation.

GNH USA supplies Injexate as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, oncology centres, and pharmacies worldwide. Our distribution network ensures consistent quality and regulatory compliance across all regions.

Methotrexate is used to treat autoimmune and malignant conditions by targeting rapidly dividing cells and modulating immune response. - Rheumatoid arthritis: reduces joint inflammation and slows disease progression. - Psoriasis: decreases skin lesion severity and plaque formation. - Acute lymphoblastic leukemia: induces remission by inhibiting leukemic cell proliferation. - Non‑Hodgkin lymphoma: achieves tumor reduction through cytotoxic activity. - Osteosarcoma: limits tumor growth and metastasis in bone cancer.

Methotrexate may cause a range of adverse reactions, varying from mild to severe. Common Side Effects: - Nausea: mild to moderate gastrointestinal upset. - Fatigue: general feeling of tiredness. - Mouth sores: ulceration of oral mucosa. - Elevated liver enzymes: transient increase in hepatic transaminases. Serious or Rare Side Effects: - Bone marrow suppression: risk of anemia, leukopenia, thrombocytopenia. - Severe liver toxicity: potential for hepatitis or fibrosis. - Pulmonary fibrosis: interstitial lung disease presenting with dyspnea. - Renal impairment: reduced clearance leading to toxicity.

Methotrexate requires careful monitoring and specific safety measures. - Pregnancy: contraindicated (Category X) due to high teratogenic risk. - Renal function: assess before initiation and monitor regularly because the drug is renally excreted. - Liver function: monitor transaminases; avoid use in severe hepatic impairment. - Hematologic: perform baseline complete blood count and monitor for cytopenias during therapy. - Infection risk: screen for latent infections and avoid use in active infections. - Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Methotrexate interacts with several medicines that can alter its safety or effectiveness. Major Interactions (Avoid): - NSAIDs: increase risk of renal toxicity and gastrointestinal ulceration. - Live vaccines: may cause severe infection due to immunosuppression. - Trimethoprim‑sulfamethoxazole: potentiates myelosuppression. Moderate Interactions (Monitor Closely): - Azathioprine: additive bone marrow suppression. - Phenytoin: may reduce methotrexate plasma levels. - Alcohol: can exacerbate hepatotoxicity.