Injexate

Methotrexate, the active ingredient in Injexate, is an antimetabolite presented as an injectable solution for intravenous use. It treats autoimmune diseases and certain cancers in adults and children.

GNH USA supplies Injexate as a licensed, GDP-compliant international pharmaceutical supplier serving hospitals, oncology centres, and pharmacies worldwide.

Methotrexate is used in the management of autoimmune disorders and malignancies by targeting rapidly dividing cells.

Rheumatoid arthritis: reduces joint inflammation and slows disease progression. Psoriasis: diminishes skin lesions and plaque formation. Acute lymphoblastic leukemia: interferes with leukemic cell proliferation. Non-Hodgkin lymphoma: impedes growth of malignant lymphocytes. Gestational trophoblastic disease: promotes resolution of abnormal trophoblastic tissue.

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

Common Side Effects: - Nausea and vomiting: gastrointestinal upset occurring shortly after administration. - Fatigue: persistent tiredness not relieved by rest. - Elevated liver enzymes: mild hepatic enzyme changes detected in blood tests. - Mouth sores: ulceration of oral mucosa. - Low blood counts: mild reductions in white cells or platelets.

Serious or Rare Side Effects: - Pulmonary toxicity: interstitial pneumonitis presenting with cough and dyspnea. - Severe hepatotoxicity: significant liver injury requiring monitoring. - Bone marrow suppression: profound pancytopenia increasing infection risk. - Renal impairment: decreased kidney function affecting drug clearance. - Severe cutaneous reactions: Stevens‑Johnson syndrome or toxic epidermal necrolysis.

Methotrexate requires careful monitoring and specific safety measures.

Renal function assessment: evaluate creatinine clearance before and during therapy. Liver monitoring: perform baseline and periodic liver function tests. Hematologic surveillance: conduct regular complete blood counts. Avoid pregnancy: contraindicated in women of childbearing potential; use effective contraception. Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Methotrexate can interact with several medicines, altering efficacy or toxicity.

Major Interactions (Avoid): - Non‑steroidal anti‑inflammatory drugs (NSAIDs): increase methotrexate serum levels and risk of toxicity. - Proton pump inhibitors: may reduce renal clearance, enhancing toxicity. - Trimethoprim‑sulfamethoxazole: additive bone marrow suppression.

Moderate Interactions (Monitor Closely): - Penicillins and cephalosporins: may modestly raise methotrexate concentrations. - Azathioprine: combined immunosuppression may heighten infection risk. - Live vaccines: reduced efficacy and potential for infection.