Product image of Methotrexate Pfizer (Methotrexate) supplied by GNH India

Methotrexate Pfizer

Active Ingredient:
Methotrexate
Origin:
EU

Methotrexate Pfizer (Methotrexate)

Methotrexate, the active ingredient in Methotrexate Pfizer, is an antimetabolite presented as an unknown/unknown for intra‑arterial, intramuscular, and intravenous use. It is employed to treat rheumatoid arthritis, psoriasis, acute lymphoblastic leukemia, non‑Hodgkin lymphoma, and gestational trophoblastic disease in appropriate patients.

GNH India supplies Methotrexate Pfizer as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, oncology centres, and pharmacies worldwide.

Manufacturer / TM Owner

Pfizer Hellas A.E.

1
Pack/s
This product is added to your enquiry list

Request a Quote

Please fill out the form below and our team will get back to you shortly with pricing and further information.

A minimum order value applies. Our team will confirm the exact amount or quantity after reviewing your requirements.

Indications & Clinical Uses

Methotrexate is an antimetabolite used across several disease families, notably inflammatory and malignant conditions.

  • Rheumatoid arthritis: reduces disease activity and joint inflammation.
  • Psoriasis: decreases skin plaque formation and severity.
  • Acute lymphoblastic leukemia: interferes with leukemic cell proliferation.
  • Non‑Hodgkin lymphoma: limits growth of malignant lymphocytes.
  • Gestational trophoblastic disease: promotes resolution of abnormal trophoblastic tissue.

How It Works

  • Methotrexate inhibits dihydrofolate reductase, preventing the conversion of dihydrofolate to tetrahydrofolate. This blockade reduces the synthesis of purine nucleotides and thymidylate, essential components for DNA replication and cell division, thereby exerting cytostatic and immunosuppressive effects on rapidly dividing cells.

Side Effects

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

Common Side Effects

  • Nausea and vomiting.
  • Fatigue or malaise.
  • Mouth sores (stomatitis).
  • Mild elevation of liver enzymes.
  • Temporary hair thinning.

Serious or Rare Side Effects

  • Severe liver toxicity or fibrosis.
  • Pulmonary fibrosis or interstitial pneumonitis.
  • Bone marrow suppression leading to pancytopenia.
  • Acute renal impairment.
  • Life‑threatening infections due to immunosuppression.

Precautions & Warnings

When using Methotrexate, careful monitoring and patient education are essential.

  • Renal function: assess before initiation and periodically thereafter.
  • Liver health: perform baseline and regular liver function tests.
  • Hematology: monitor complete blood counts to detect bone‑marrow suppression.
  • Pregnancy and lactation: avoid use in pregnancy and advise effective contraception; discontinue if pregnancy occurs.
  • Store at ambient temperature: keep below 25 °C, in original packaging, protected from moisture and light.

Avoid Interactions

Methotrexate interacts with several drug classes that may alter its safety or efficacy.

Major Interactions (Avoid)

  • Non‑steroidal anti‑inflammatory drugs (NSAIDs): increase methotrexate toxicity.
  • Penicillins and other β‑lactam antibiotics: may raise serum methotrexate levels.
  • Sulfonamide antibiotics: can potentiate adverse effects.

Moderate Interactions (Monitor Closely)

  • Warfarin: enhanced anticoagulant effect, monitor INR.
  • Azathioprine or other immunosuppressants: increased risk of bone‑marrow suppression.
  • Proton pump inhibitors: may affect renal clearance, watch renal function.

Frequently Asked Questions

Methotrexate Pfizer is indicated for several serious conditions, including rheumatoid arthritis, psoriasis, acute lymphoblastic leukemia, non‑Hodgkin lymphoma, and gestational trophoblastic disease. In each case, it works by inhibiting cell proliferation and modulating immune responses, helping to control disease activity.

Methotrexate blocks the enzyme dihydrofolate reductase, which is essential for converting folic acid into its active form. This interruption reduces the production of nucleotides needed for DNA synthesis, thereby limiting the growth of rapidly dividing cells such as cancer cells and immune cells involved in inflammation.

The specific dose and schedule of Methotrexate Pfizer are determined by the prescribing clinician based on the patient’s condition, weight, renal function, and treatment goals. Dosing may be weekly or as part of a chemotherapy regimen, and it should always follow the prescriber’s instructions.

Methotrexate is contraindicated in pregnancy because it can cause fetal malformations and miscarriage. Women of child‑bearing potential must use effective contraception. It is also not recommended while breastfeeding, as it can be excreted in breast milk and affect the infant.

To place an order, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including cold‑chain if needed), and necessary import documentation.

Methotrexate shares a similar mechanism with other antimetabolites like pemetrexed, but it is distinguished by its broad range of approved indications, including both inflammatory diseases and several cancers. Its dosing flexibility and extensive clinical experience make it a cornerstone therapy, though safety monitoring is critical.

Methotrexate Pfizer should be stored at ambient temperature, below 25 °C. Keep the product in its original packaging, protect it from moisture and direct light, and avoid freezing. Follow any additional handling instructions provided by the supplier.

Methotrexate Pfizer can be given by intra‑arterial, intramuscular, or intravenous injection, depending on the indication and clinical protocol. Administration is performed by qualified healthcare professionals in a controlled setting, with appropriate monitoring for adverse reactions.

The most serious risks include severe liver toxicity, pulmonary fibrosis, bone‑marrow suppression leading to pancytopenia, and acute renal failure. Patients should be monitored regularly for liver enzymes, blood counts, and renal function, and any signs of infection or respiratory distress require immediate medical attention.

Methotrexate is contraindicated in patients with known hypersensitivity to the drug, severe renal or hepatic impairment, active infections, and in pregnant or breastfeeding women. Caution is also advised for individuals with pre‑existing blood disorders or pulmonary disease.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

Disclaimer

At GNH India, we aim to provide information that is expert-reviewed, accurate, and reliable. However, all content on this platform is intended for general informational purposes only and does not constitute professional medical advice, diagnosis, or treatment. While efforts are made to maintain accuracy and currency, the information may contain errors, omissions, or may not reflect the latest developments. Always consult a qualified healthcare professional regarding any medical concerns.

All product names, brand names, trademarks and registered trademarks displayed on this website are the property of their respective owners. This website and its operator are not affiliated with, endorsed by, or authorized by any such trade mark owners unless expressly stated. Any reference to product names or trademarks is made solely for descriptive and informational purposes. No commercial relationship, sponsorship, approval, or association with any trademark owner should be inferred. Information provided herein does not constitute promotion, advertising, or an offer for sale of any medicinal product and is intended solely for general informational purposes.

All trademarks and brand names displayed on this website are used strictly in accordance with the provisions of the Trade Marks Act, 1999, specifically Sections 30 and 30(1) governing fair use. Trademark ownership has been accurately attributed under the "Manufacturer/ TM Owner" section in compliance with statutory requirements.

Ordering Process

Simple, Secure, and Seamless

Learn how our streamlined ordering process guarantees fast, compliant, and reliable access to essential medicines worldwide.

Quote request form

01

Submit Quote Request Form

Tell us what medications you need by filling out our simple form and uploading a valid document.

Price estimate review

02

We Review & Send Estimate

Our licensed pharmacists will verify your details and provide you with a detailed cost estimate.

Secure payment

03

Confirm & Make Payment

Discuss any queries, approve the estimate, and complete your payment.

Worldwide delivery

04

Get Delivered

Your medicines, safely packed and delivered to your door or nearest airport — hassle-free.

Quality You Can Trust

Our internationally recognized certifications underscore our commitment to safety, quality, and excellence.