biotrexate 1000mg injection - Methotrexate (1000mg) medicine

Biotrexate 1000mg Injection: Complete Medicine Guide

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🏭 Biochem Pharmaceutical Industries 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 24, 2026
⚠️ Hepatotoxicity Risk ⚠️ Nephrotoxicity Risk 🤰 Pregnancy Category Methotrexate is contraindicated in pregnancy. It is an abortifacient and teratogenic, causing fetal harm. Women of childbearing potential must use effective contraception during treatment and for at least 6 months after the last dose. Men should use contraception for at least 3 months after the last dose. 📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for multiple indications.
Reviewed by
SaathiMed Expert Panel | Sep 24, 2026

When to Call Your Doctor IMMEDIATELY

  • Fever, chills, or sore throat
  • Unusual bleeding or bruising
  • Shortness of breath or dry cough
  • Yellowing of skin or eyes
  • Decreased urine output
  • Severe mouth sores or difficulty swallowing
  • Blood in vomit or stool
  • Severe abdominal pain

If experiencing severe symptoms, call emergency services immediately.

What is biotrexate 1000mg injection used for?

This medicine is a high-strength injectable form of methotrexate used to treat certain cancers, severe rheumatoid arthritis, and psoriasis. It works by blocking an enzyme needed for cell division and reducing inflammation. It must be given by a healthcare professional and requires regular blood monitoring.

  • Generic Name: Methotrexate
  • Manufacturer: Biochem Pharmaceutical Industries
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 biotrexate 1000mg injection के बारे में (Hindi Summary)

उपयोग: यह दवा मेथोट्रेक्सेट का एक उच्च शक्ति वाला इंजेक्शन है, जिसका उपयोग कुछ प्रकार के कैंसर जैसे तीव्र लिम्फोब्लास्टिक ल्यूकेमिया, ऑस्टियोसारकोमा और नॉन-हॉजकिन लिंफोमा के इलाज में किया जाता है। इसका उपयोग गंभीर रूमेटाइड गठिया और सोरायसिस जैसी ऑटोइम्यून बीमारियों में भी किया जाता है जब अन्य उपचार प्रभावी नहीं होते। यह दवा केवल डॉक्टर की देखरेख में ही दी जानी चाहिए।

साइड इफेक्ट्स: आम दुष्प्रभावों में मतली, उल्टी, मुँह के छाले, थकान और बालों का पतला होना शामिल हैं। गंभीर दुष्प्रभावों में रक्त कोशिकाओं का कम होना, लीवर की क्षति, गुर्दे की क्षति, फेफड़ों में सूजन और संक्रमण का खतरा बढ़ना शामिल है। किसी भी असामान्य रक्तस्राव, चकत्ते, सांस लेने में कठिनाई या पीलिया होने पर तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: यह दवा केवल योग्य स्वास्थ्य पेशेवर की देखरेख में ही दी जानी चाहिए। इलाज के दौरान नियमित रूप से रक्त परीक्षण कराना आवश्यक है। शराब का सेवन पूरी तरह से बंद कर दें। इस दवा के साथ लाइव टीके न लगवाएं। उपचार के दौरान और बाद में भी गर्भनिरोधक उपाय अपनाएं। संक्रमण वाले लोगों से दूर रहें। स्तनपान न कराएं। कोई भी नई दवा शुरू करने से पहले डॉक्टर को बताएं।

💡 Did You Know? The Indian pharmaceutical market is expected to reach $130 billion by 2030.

💊 biotrexate 1000mg injection Uses & Benefits

[{"condition":"Acute lymphoblastic leukemia","description":"Used as part of combination chemotherapy regimens to induce and maintain remission.","evidence":"Well-established"},{"condition":"Osteosarcoma","description":"Administered as part of multi-agent chemotherapy for localized and metastatic disease.","evidence":"Well-established"},{"condition":"Non-Hodgkin lymphoma","description":"Included in various chemotherapy protocols for certain subtypes.","evidence":"Well-established"},{"condition":"Rheumatoid arthritis","description":"Used as a disease-modifying antirheumatic drug to reduce joint inflammation and prevent joint damage.","evidence":"Well-established"},{"condition":"Psoriasis","description":"Prescribed for severe plaque psoriasis and psoriatic arthritis when other treatments fail.","evidence":"Well-established"},{"condition":"Ectopic pregnancy","description":"Used in selected cases to terminate an early ectopic pregnancy and preserve fertility.","evidence":"Well-established"}]

Off-label uses: [{"condition":"Crohn's disease","description":"Sometimes used to maintain remission in patients who cannot tolerate other therapies.","evidence":"Limited"},{"condition":"Lupus","description":"May be used for severe cutaneous or systemic lupus erythematosus in some patients.","evidence":"Limited"},{"condition":"Sarcoidosis","description":"Occasionally used for chronic sarcoidosis unresponsive to steroids.","evidence":"Limited"}]

Primary treatment for: Rheumatoid arthritis

Also treats: Psoriasis, Acute lymphoblastic leukemia, Osteosarcoma, Non-Hodgkin lymphoma, Ectopic pregnancy

📋 Drug Information

Generic Name(s)Methotrexate
Brand NameAuraTrex 5mg Tablet
ManufacturerBiochem Pharmaceutical Industries
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassANTI NEOPLASTICS
Action ClassAntimetabolite- Methotrexate
Route of AdministrationParenteral (intravenous, intramuscular, or subcutaneous injection). The route and method of administration depend on the specific indication and treatment protocol
StorageStore the vial at room temperature (15-30°C). Protect from light. Do not freeze. Once reconstituted, use as directed by the manufacturer or healthcare provider. Follow institutional guidelines for handling and disposal of cytotoxic drugs.
Shelf LifeRefer to the product label for the exact shelf life. Typically 24 to 36 months from the date of manufacture when stored properly.
WHO GuidelineMethotrexate is included in the WHO Model List of Essential Medicines for the treatment of certain cancers and autoimmune diseases. Specific recommendations vary by condition.
ICMR GuidelineNot established from the available information.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Always administer this medicine under the supervision of a qualified healthcare professional.
2
Ensure regular monitoring of complete blood count, liver function, and kidney function.
3
Advise patients to avoid alcohol completely during treatment.
4
Use effective contraception for both men and women during and after treatment.
5
Do not administer live vaccines while the patient is on this medicine.
6
Educate patients about the signs of infection, bleeding, and breathing difficulties.
7
For high-dose therapy, ensure adequate hydration and leucovorin rescue as per protocol.
8
Follow strict aseptic technique and cytotoxic drug handling guidelines.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

Joint pain and swelling
This medicine is used for rheumatoid arthritis.
Likely Use
Skin plaques
This medicine is used for severe psoriasis.
Likely Use
Fever
This medicine is not a primary fever reducer.
Not Primary
Headache
This medicine is not typically used for headache.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionNot established from the available information for the injectable form. Methotrexate is completely absorbed after parenteral administration.
DistributionMethotrexate distributes widely into body tissues, with highest concentrations in the liver, kidneys, and spleen. It can cross the placenta and is excreted in breast milk.
Protein BindingApproximately 50% bound to plasma proteins.
MetabolismMethotrexate is partially metabolized in the liver to polyglutamated forms, which are retained intracellularly and prolong its effects. It is also converted to 7-hydroxymethotrexate, a less active metabolite.
Half-LifeThe elimination half-life is approximately 3 to 10 hours for low doses, but may be prolonged with high-dose therapy or renal impairment.
ExcretionPrimarily excreted unchanged in the urine by glomerular filtration and active tubular secretion. A small amount is excreted in bile and feces.
BioavailabilityNot applicable for intravenous administration. Subcutaneous and intramuscular routes have high bioavailability (approximately 90% or more).
Onset of ActionFor cancer, cytotoxic effects begin within hours. For rheumatoid arthritis, clinical improvement may take 3 to 6 weeks.
Peak Plasma TimePeak plasma concentrations are reached immediately after intravenous administration and within 1 to 2 hours after intramuscular or subcutaneous injection.
Duration of ActionThe duration of action varies with dose and indication. For low-dose therapy, effects may last several days; for high-dose cancer therapy, effects are more prolonged.

How It Works

Methotrexate inhibits dihydrofolate reductase, preventing the conversion of dihydrofolate to tetrahydrofolate. This leads to decreased synthesis of thymidylate and purines, which are essential for DNA and RNA synthesis. Rapidly dividing cells, such as cancer cells and activated immune cells, are particularly sensitive to this effect. Additionally, methotrexate increases intracellular levels of adenosine, which has anti-inflammatory properties. This dual mechanism explains its use in both cancer and autoimmune diseases.

Mechanism Steps

1
Inhibition of dihydrofolate reductase: Methotrexate binds to and inhibits dihydrofolate reductase, blocking the reduction of dihydrofolate to tetrahydrofolate.
2
Depletion of tetrahydrofolate: Reduced tetrahydrofolate levels impair the synthesis of thymidylate and purine nucleotides.
3
Inhibition of DNA synthesis: Without adequate nucleotides, DNA replication and cell division are halted, leading to cell death in rapidly dividing cells.
4
Increased adenosine release: Methotrexate promotes the release of adenosine, which suppresses inflammatory pathways and immune cell function.

💡 How to Take biotrexate 1000mg injection

Strength: This product is a 1000 mg injection vial containing methotrexate. It is intended for parenteral administration after appropriate dilution or reconstitution as per the manufacturer's instructions.

1This medicine is administered by a healthcare professional only.
2The injection may be given intravenously, intramuscularly, or subcutaneously depending on the protocol.
3For intravenous use, the vial is reconstituted and diluted as per instructions.
4For intramuscular or subcutaneous use, the appropriate volume is drawn up and injected.
5Follow strict aseptic technique and institutional guidelines for cytotoxic drug handling.
6Dispose of used vials and syringes according to biomedical waste guidelines.

Dosage Information

Adult DosageThe dose of this medicine varies widely depending on the indication, treatment protocol, and patient factors. For rheumatoid arthritis, typical doses range from 7.5 mg to 25 mg once weekly, given as a single injection. For cancer, doses may range from 30 mg/m² to 12 g/m² depending on the regimen. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function, and response to therapy.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatric oncologist or rheumatologist for individualized dosing.
Elderly DosageElderly patients may be more sensitive to the effects of methotrexate, especially bone marrow suppression and renal toxicity. Doses should be adjusted based on renal function and overall health status. Close monitoring is required.
Renal ImpairmentMethotrexate is primarily excreted by the kidneys. In patients with renal impairment, dose reduction or avoidance is necessary. For mild renal impairment, dose adjustment may be required. For moderate to severe impairment, methotrexate is contraindicated. Consult a nephrologist or clinical pharmacist for guidance.
Hepatic ImpairmentIn patients with hepatic impairment, methotrexate should be used with caution. Dose reduction may be necessary. Regular monitoring of liver function is essential. In severe hepatic impairment, methotrexate is contraindicated.
Maximum Daily DoseThe maximum dose varies by indication and protocol. For high-dose cancer therapy, doses up to 12 g/m² have been used. For rheumatoid arthritis, the maximum recommended weekly dose is typically 25 mg. Dose must be individualized by a qualified clinician.

Dosage Timeline

🌅 Morning ❌ ☀️ Afternoon ❌ 🌆 Evening ❌ 🌙 Night ❌

🍽️ Food Timing Guide

Alcohol
Avoid
Increases risk of liver toxicity.
Folic acid-rich foods
No specific restriction
May help reduce some side effects but consult your doctor.

⏰ What to Do If You Miss a Dose

📌 You miss a scheduled dose
→ Contact your healthcare provider immediately for guidance.
💡 Do not attempt to self-administer a double dose.
📌 You are unsure about the dosing schedule
→ Refer to your treatment plan or contact your healthcare provider.
💡 Never change the dose or schedule without medical advice.

⚠️ Side Effects of biotrexate 1000mg injection

✅ Common Side Effects

Nausea (Common (10-25%))
Take anti-nausea medication as prescribed. Eat small, frequent meals.
Vomiting (Common (5-15%))
Stay hydrated. Report if persistent.
Mouth sores (Common (10-20%))
Use prescribed mouth rinses. Avoid spicy or acidic foods.
Fatigue (Common (10-20%))
Rest adequately. Report if severe.
Hair thinning (Uncommon (5-10%))
Usually reversible after treatment ends.

🚨 Serious Side Effects

Bone marrow suppression (Uncommon (1-5%))
Seek immediate medical attention if you develop fever, sore throat, or unusual bleeding.
Liver toxicity (Uncommon (1-5%))
Report yellowing of skin or eyes, dark urine, or abdominal pain immediately.
Kidney damage (Rare (<1%))
Report decreased urine output or swelling. Maintain good hydration.
Lung inflammation (pneumonitis) (Rare (<1%))
Seek immediate care for new or worsening shortness of breath, cough, or fever.
Severe allergic reaction (Rare (<0.1%))
Call emergency services for rash, swelling, or difficulty breathing.

⚠️ Rare Side Effects

Seizures
Seek emergency medical attention.
Severe skin reactions (Stevens-Johnson syndrome)
Stop medicine and seek immediate care for blistering rash or peeling skin.
Aplastic anemia
Report persistent fatigue, infections, or bleeding.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
NSAIDs Major
Aspirin Major
Probenecid Major
Trimethoprim-sulfamethoxazole Major
Live vaccines Major
Penicillins Moderate
Cephalosporins Moderate
Phenytoin Moderate
Theophylline Moderate
Folic acid Minor

🚨 Major Interactions

  • NSAIDs (e.g., ibuprofen, naproxen)
  • Aspirin and other salicylates
  • Probenecid
  • Trimethoprim-sulfamethoxazole
  • Live vaccines

⚡ Moderate Interactions

  • Penicillins
  • Cephalosporins
  • Phenytoin
  • Theophylline

🍷 Alcohol Interaction

Alcohol should be completely avoided while receiving this medicine because it increases the risk of liver damage and may worsen bone marrow suppression.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Pregnancy or planning pregnancy","Breastfeeding","Severe renal impairment","Severe hepatic impairment","Active infection","Bone marrow suppression","Hypersensitivity to methotrexate","Alcoholism"]

⚠️ Warnings & Precautions

["This medicine should only be administered by healthcare professionals experienced in its use.","Regular monitoring of blood counts, liver, and kidney function is mandatory.","Avoid alcohol during treatment.","Use effective contraception during and after treatment.","Do not receive live vaccines while on this medicine.","Report any signs of infection, bleeding, or breathing difficulties immediately.","High-dose therapy requires leucovorin rescue and careful hydration.","Avoid NSAIDs and aspirin unless specifically instructed by your doctor."]

🤱 Lactation Safety

Methotrexate is excreted in breast milk and may cause serious adverse effects in the nursing infant. Breastfeeding is contraindicated during treatment.

💊 Overdose Management

Overdose of methotrexate can cause severe bone marrow suppression, mucositis, and organ toxicity. Immediate medical attention is required. Treatment includes administration of leucovorin (folinic acid) as soon as possible, hydration, and supportive care. Hemodialysis may be considered in severe cases. Do not attempt to manage overdose at home.

⏰ Missed Dose

If you miss a dose of this medicine, contact your healthcare provider immediately for guidance. Do not take or administer a double dose to make up for a missed one. The management of a missed dose depends on the treatment regimen and indication.

Additional Safety Advice

General Safety

This medicine must be given under the supervision of a qualified healthcare professional. Regular blood tests are required to monitor blood counts, liver function, and kidney function. Avoid alcohol completely during treatment. Do not receive live vaccines while on this medicine. Use effective contraception during treatment and for a period after the last dose for both men and women. Avoid contact with people who have active infections. Do not breastfeed while receiving this medicine. Inform your doctor about all other medicines you are taking, including over-the-counter drugs and herbal supplements. Seek immediate medical attention if you experience severe abdominal pain, blood in vomit or stool, difficulty breathing, or signs of an allergic reaction.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are at higher risk of bone marrow suppression, liver toxicity, and kidney toxicity. Doses should be adjusted based on renal function. Close monitoring is essential. They may also be more susceptible to infections.

🤰 Pregnancy Planning (TTC)

This medicine is contraindicated in pregnancy and can cause birth defects or miscarriage. Women of childbearing potential must use effective contraception during treatment and for at least 6 months after the last dose. Men should use contraception for at least 3 months after the last dose. If you are planning pregnancy, consult your doctor to discuss alternative treatments.

🏥 Post-Surgery Considerations

This medicine may impair wound healing and increase the risk of infection. Inform your surgeon that you are on this medicine. It may need to be temporarily stopped before surgery. Follow your doctor's instructions regarding when to resume.

🦷 Dental Procedures

Inform your dentist that you are on this medicine. It may increase the risk of bleeding and infection. Your dentist may recommend postponing elective dental procedures until your blood counts are normal. Good oral hygiene is important to prevent mouth sores.

💚 Lifestyle Tips for Better Results

🏃
Avoid alcohol completely to protect your liver.
🥗
Maintain good hydration, especially during high-dose therapy.
😴
Eat a balanced diet rich in fruits and vegetables.
💧
Practice good hand hygiene to prevent infections.
🧘
Get adequate rest and manage stress.
🌞
Use sunscreen as this medicine may increase sun sensitivity.
🚭
Inform your doctor about any new medications or supplements.

🏋️ Exercise Considerations

Moderate exercise is generally safe, but avoid strenuous activities if you feel fatigued or have low blood counts. Contact sports should be avoided due to increased bleeding risk. Consult your doctor before starting any new exercise regimen.

🥗 Diet Recommendations

Stay well hydrated by drinking plenty of fluids.
Include folic acid-rich foods like leafy greens, beans, and citrus fruits.
Avoid alcohol and limit caffeine.
Eat small, frequent meals if experiencing nausea.
Avoid raw or undercooked foods to reduce infection risk.

💼 Impact on Daily Work & Life

This medicine may cause fatigue, dizziness, or nausea, which can affect your ability to drive or operate machinery. Avoid driving if you feel unwell. You may need to take time off work for treatment and monitoring. Discuss with your employer about flexible work arrangements if needed.

🛑 When to Stop This Medicine

Do not stop this medicine without consulting your doctor. Stopping suddenly may worsen your condition. Your doctor may stop treatment if you develop severe side effects, such as significant bone marrow suppression, liver toxicity, or kidney damage. Always follow your doctor's advice regarding treatment duration.

📅 Long-Term Use Effects

Long-term use of this medicine may lead to liver fibrosis or cirrhosis, especially with cumulative doses and alcohol use. Bone marrow suppression can occur, requiring regular blood counts. Kidney function may be affected. Patients on long-term therapy should have regular monitoring of liver and kidney function, and blood counts. The risk of infections may be increased. Discuss with your doctor about the need for folic acid supplementation to reduce side effects.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Physical therapy

Can help improve joint function and reduce pain in rheumatoid arthritis.

Evidence: Well-established
Biologic agents

Alternative for autoimmune diseases if methotrexate is not effective or tolerated.

Evidence: Well-established
Other chemotherapy agents

For cancer, other drugs may be used alone or in combination.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

Live vaccines should not be administered while on this medicine due to the risk of infection. Inactivated vaccines may be given, but the immune response may be reduced. Consult your doctor before receiving any vaccine.

📦 Storage Guide

✅ DO

Store at room temperature (15-30°C)

❌ DON'T

Do not freeze

✅ DO

Protect from light

❌ DON'T

Do not expose to direct sunlight

✅ DO

Keep in original container

❌ DON'T

Do not transfer to unmarked containers

✅ DO

Follow institutional guidelines for cytotoxic drug handling

❌ DON'T

Do not dispose of in regular trash

✈️ Traveling with This Medicine

When traveling with this medicine, carry it in its original packaging with the prescription label clearly visible. Keep a copy of your prescription and a letter from your doctor explaining the medical need. Store the vial at room temperature and protect it from light. If traveling across time zones, consult your doctor about adjusting the timing of your doses. Check customs regulations for carrying injectable medicines. Always carry enough supply for your entire trip and a little extra in case of delays.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 52-year-old woman with severe rheumatoid arthritis
She had tried multiple medications without relief. Her rheumatologist started her on this medicine as a weekly injection. After 6 weeks, her joint pain and swelling significantly decreased. She experienced mild nausea initially, which was managed with anti-nausea medication. Regular blood tests showed no abnormalities.
💡 Lesson: Consistent weekly dosing and regular monitoring can lead to significant improvement in rheumatoid arthritis with manageable side effects.
👤 A 28-year-old man diagnosed with osteosarcoma
He received this medicine as part of a combination chemotherapy regimen. He experienced mouth sores and fatigue, which were managed with supportive care. His tumor showed good response to treatment. He was advised to use contraception and avoid alcohol.
💡 Lesson: High-dose methotrexate therapy requires close monitoring and supportive care to manage side effects effectively.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: For cancer, effects begin within hours to days. For rheumatoid arthritis, improvement may take 3 to 6 weeks.

Q: Can I take this medicine at home?

A: No, this medicine must be administered by a healthcare professional.

Q: What should I avoid while on this medicine?

A: Avoid alcohol, live vaccines, and contact with people who have infections. Use contraception if of childbearing potential.

Q: What are the serious side effects I should watch for?

A: Watch for fever, unusual bleeding, shortness of breath, yellowing of eyes or skin, and decreased urine output. Report these immediately.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I take this medicine long-term?
  • Will it affect my kidney function?
  • Can I drive after taking this medicine?
  • Does it interact with my blood pressure medicine?
  • What if I miss a dose?
  • Can I drink alcohol while taking this?
  • Is it safe during pregnancy?
  • How often do I need blood tests?

🔄 Substitutes for biotrexate 1000mg injection

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: Methotrexate is only for cancer.
    Fact: Methotrexate is also used for autoimmune diseases like rheumatoid arthritis and psoriasis at lower doses.
  • Myth: Methotrexate is safe to take without monitoring.
    Fact: Regular blood tests are essential to monitor for liver, kidney, and bone marrow toxicity.
  • Myth: Methotrexate can be taken during pregnancy.
    Fact: Methotrexate is contraindicated in pregnancy as it can cause birth defects or miscarriage.

🔄 Alternative Options

Generic Alternatives

  • Methotrexate injection

Brand Alternatives

  • Biotrexate 1000mg injection

📊 Comparison with Similar Medicines

[{"medicine":"Biotrexate 1000mg injection","strength":"1000mg","form":"Injection","route":"Parenteral","release":"Immediate release"},{"medicine":"Methotrexate 500mg injection","strength":"500mg","form":"Injection","route":"Parenteral","release":"Immediate release"},{"medicine":"Methotrexate 50mg injection","strength":"50mg","form":"Injection","route":"Parenteral","release":"Immediate release"}]

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