bigvin-fc injection - Folic Acid (0.7mg) + Methylcobalamin (1500mcg) medicine

Meaxon Plus Injection: Complete Guide to Uses, Dosage, and Safety

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🏭 BestoChem Formulations India Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Oct 22, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for deficiency states; moderate for neuropathy.
Reviewed by
SaathiMed Expert Panel | Oct 22, 2026
🩺
Medically Fact-Checked & Clinically Verified by SaathiMed Clinical Review Board
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026

When to Call Your Doctor IMMEDIATELY

  • Difficulty breathing or swallowing
  • Swelling of face, lips, or throat
  • Severe rash or hives
  • Chest pain or palpitations
  • Sudden weakness or numbness on one side of the body
  • Yellowing of skin or eyes
  • Decreased urine output

If experiencing severe symptoms, call emergency services immediately.

What is bigvin-fc injection used for?

This medicine is a combination of folic acid and methylcobalamin used to treat vitamin deficiencies, megaloblastic anemia, and peripheral neuropathy. It is given as an injection by a healthcare professional.

  • Generic Name: Folic Acid (0.7mg) + Methylcobalamin (1500mcg)
  • Manufacturer: BestoChem Formulations India Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 bigvin-fc injection के बारे में (Hindi Summary)

उपयोग: यह दवा फोलिक एसिड और मिथाइलकोबालामिन का संयोजन है, जिसका उपयोग विटामिन की कमी, मेगालोब्लास्टिक एनीमिया और पेरिफेरल न्यूरोपैथी के इलाज के लिए किया जाता है। यह इंजेक्शन के रूप में डॉक्टर द्वारा दिया जाता है। यह तंत्रिका स्वास्थ्य और लाल रक्त कोशिकाओं के निर्माण में मदद करता है।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में इंजेक्शन स्थल पर दर्द, लालिमा या सूजन, मतली, दस्त और भूख में कमी शामिल हो सकती है। दुर्लभ मामलों में एलर्जी प्रतिक्रिया हो सकती है। किसी भी असामान्य लक्षण पर तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: यह दवा केवल योग्य स्वास्थ्य पेशेवर द्वारा ही दी जानी चाहिए। स्वयं इंजेक्शन न लगाएं। यदि आप गर्भवती हैं, स्तनपान करा रही हैं, या कोई अन्य दवा ले रही हैं, तो अपने डॉक्टर को बताएं। शराब का सेवन न करें। नियमित रक्त परीक्षण की आवश्यकता हो सकती है।

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

💊 bigvin-fc injection Uses & Benefits

[{"condition":"Megaloblastic anemia due to folic acid and vitamin B12 deficiency","description":"This medicine provides both folic acid and methylcobalamin to correct deficiencies and support red blood cell production.","evidence":"Well-established"},{"condition":"Peripheral neuropathy","description":"Methylcobalamin helps in the regeneration of damaged nerves and improves symptoms of numbness, tingling, and pain.","evidence":"Moderate"},{"condition":"Vitamin B12 deficiency","description":"Methylcobalamin is an active form of vitamin B12 used to treat deficiency, especially when oral absorption is impaired.","evidence":"Well-established"},{"condition":"Folic acid deficiency","description":"Folic acid is essential for DNA synthesis and red blood cell formation; this injection rapidly corrects deficiency.","evidence":"Well-established"}]

Off-label uses: [{"condition":"Diabetic neuropathy","description":"Sometimes used as an adjunct to improve nerve function in diabetic patients.","evidence":"Limited"},{"condition":"Hyperhomocysteinemia","description":"May be used to lower elevated homocysteine levels, a risk factor for cardiovascular disease.","evidence":"Limited"}]

Primary treatment for: Vitamin B12 and folate deficiency

Also treats: Megaloblastic anemia, Peripheral neuropathy, Hyperhomocysteinemia

📋 Drug Information

Generic Name(s)Folic Acid (0.7mg) + Methylcobalamin (1500mcg)
Brand Namebigvin-fc injection
ManufacturerBestoChem Formulations India Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassVITAMINS MINERALS NUTRIENTS
Action Class
Route of AdministrationParenteral (intramuscular or intravenous)
StorageStore in a refrigerator (2°C to 8°C). Do not freeze. Protect from light. Keep out of reach of children.
Shelf Life24 months from the date of manufacture.
WHO GuidelineNot established from the available information.
ICMR GuidelineNot established from the available information.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Always confirm the type of anemia before prescribing this medicine to avoid masking vitamin B12 deficiency.
2
Monitor serum vitamin B12 and folate levels periodically to assess response.
3
Use with caution in patients with epilepsy as folic acid may lower seizure threshold.
4
In elderly patients, assess renal function before and during therapy.
5
Advise patients to avoid alcohol consumption during treatment.
6
Educate patients about the importance of completing the prescribed course.
7
Watch for allergic reactions during injection and have emergency equipment ready.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Fatigue and weakness
This medicine is used for anemia-related fatigue.
Likely Use
✅
Numbness and tingling
This medicine is used for peripheral neuropathy.
Likely Use
❌
Fever
This medicine is not a primary fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionThis medicine is administered parenterally, so absorption is direct and complete, bypassing the gastrointestinal tract.
DistributionAfter injection, folic acid and methylcobalamin are distributed to tissues, with high concentrations in the liver, bone marrow, and nervous system. Methylcobalamin is stored in the liver and can cross the placenta.
Protein BindingFolic acid is approximately 50% bound to plasma proteins. Methylcobalamin binds to transcobalamin II for transport.
MetabolismFolic acid is metabolized in the liver to its active form, tetrahydrofolate. Methylcobalamin is not extensively metabolized; it is used directly as a coenzyme.
Half-LifeThe elimination half-life of folic acid is approximately 3-6 hours. Methylcobalamin has a longer half-life, with a terminal half-life of about 6 days.
ExcretionFolic acid is excreted in urine and feces. Methylcobalamin is excreted primarily in bile and urine.
BioavailabilityBioavailability is 100% due to parenteral administration.
Onset of ActionThe onset of action for hematological improvement is typically within 24-48 hours, but neurological improvement may take weeks to months.
Peak Plasma TimePeak plasma concentrations are achieved within 30-60 minutes after intramuscular injection.
Duration of ActionThe duration of action varies; hematological effects last for several days, while neurological effects require continuous therapy.

How It Works

This medicine works by supplying two essential vitamins. Folic acid is converted to tetrahydrofolate, which acts as a coenzyme in the synthesis of DNA and RNA, and is crucial for cell division and growth. Methylcobalamin is a coenzyme for methionine synthase, which converts homocysteine to methionine, and for methylmalonyl-CoA mutase, which converts methylmalonyl-CoA to succinyl-CoA. These reactions are vital for normal nerve function, myelin synthesis, and red blood cell production. By correcting deficiencies, this medicine helps restore normal hematological and neurological functions.

Mechanism Steps

1
Folic acid conversion: Folic acid is reduced to dihydrofolate and then to tetrahydrofolate, which is essential for thymidylate and purine synthesis.
2
Methylcobalamin as coenzyme: Methylcobalamin serves as a cofactor for methionine synthase, converting homocysteine to methionine, and for methylmalonyl-CoA mutase, converting methylmalonyl-CoA to succinyl-CoA.
3
DNA and RNA synthesis: Tetrahydrofolate derivatives are required for the synthesis of DNA and RNA, enabling proper cell division and maturation of red blood cells.
4
Myelin synthesis and nerve function: Methylcobalamin is necessary for the maintenance of the myelin sheath, which insulates nerve fibers and ensures efficient nerve impulse transmission.

💡 How to Take bigvin-fc injection

Strength: Injection: Folic Acid 0.7 mg + Methylcobalamin 1500 mcg per vial/ampoule.

1This medicine is administered by a healthcare professional only.
2It is given as an intramuscular or intravenous injection.
3Do not self-administer.
4Ensure the injection site is cleaned before administration.
5Follow standard aseptic technique.
6Dispose of used needles and syringes properly.

Dosage Information

Adult DosageThe usual adult dose of this medicine is 1 injection (containing folic acid 0.7 mg and methylcobalamin 1500 mcg) administered intramuscularly or intravenously once daily or as directed by the physician. The frequency and duration depend on the indication and severity of deficiency. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician.
Elderly DosageElderly patients may have reduced renal function; dose adjustment may be necessary. Use with caution and monitor renal function.
Renal ImpairmentNo specific dose adjustment is established, but use with caution in patients with severe renal impairment. Monitor renal function.
Hepatic ImpairmentNo specific dose adjustment is established, but use with caution in patients with severe hepatic impairment. Monitor liver function.
Maximum Daily DoseThe maximum daily dose is not established; follow the prescribed dose. Do not exceed the recommended dose.

Dosage Timeline

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

🍽️ Food Timing Guide

Alcohol
Avoid
Alcohol reduces the effectiveness of vitamin B12 and folic acid.
Tea/coffee
No restriction for injection
Injection bypasses gastrointestinal absorption.

⏰ What to Do If You Miss a Dose

📌 Less than half the dosing interval has passed
→ Take the missed dose as soon as you remember.
💡 Continue with the regular schedule.
📌 More than half the dosing interval has passed
→ Skip the missed dose.
💡 Do not double dose to catch up.

⚠️ Side Effects of bigvin-fc injection

✅ Common Side Effects

Injection site pain (Common (5-10%))
Apply a cold compress to the site. It usually resolves on its own.
Nausea (Common (5-10%))
Take small, frequent meals. If persistent, consult your doctor.
Diarrhea (Uncommon (1-5%))
Stay hydrated. Consult doctor if it lasts more than 2 days.
Loss of appetite (Uncommon (1-5%))
Eat small, nutritious meals. Consult doctor if it continues.

🚨 Serious Side Effects

Anaphylaxis (Rare (<0.1%))
Seek immediate medical attention if you experience rash, itching, swelling, dizziness, or difficulty breathing.
Pulmonary edema (Rare (<0.1%))
Seek emergency care if you develop shortness of breath, chest pain, or coughing up blood.
Thrombosis (Rare (<0.1%))
Report any sudden swelling, pain, or redness in an extremity to your doctor immediately.

⚠️ Rare Side Effects

Hypokalemia
Your doctor may monitor potassium levels. Report muscle weakness or cramps.
Hyperuricemia
Monitor uric acid levels if you have gout. Report joint pain.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Methotrexate Major
Phenytoin Major
Pyrimethamine Major
Trimethoprim Moderate
Sulfasalazine Moderate
Colchicine Moderate
Ascorbic acid Minor
Alcohol Minor

🚨 Major Interactions

  • Methotrexate
  • Phenytoin
  • Pyrimethamine

⚡ Moderate Interactions

  • Trimethoprim
  • Sulfasalazine
  • Colchicine

🍷 Alcohol Interaction

Alcohol should be avoided while receiving this medicine as it can worsen vitamin deficiencies and reduce the effectiveness of treatment.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Hypersensitivity to folic acid, methylcobalamin, or any component of the formulation","Untreated vitamin B12 deficiency with neurological involvement (folic acid alone may worsen neurological damage)","Leber's disease (hereditary optic neuropathy)","Use in patients with megaloblastic anemia not confirmed to be due to vitamin B12 or folate deficiency"]

⚠️ Warnings & Precautions

["Do not use this medicine without confirming the type of anemia; folic acid can mask vitamin B12 deficiency and allow neurological damage to progress.","Use with caution in patients with epilepsy as folic acid may increase seizure frequency.","Patients with renal or hepatic impairment may require dose adjustment.","This medicine contains benzyl alcohol if used in neonates; consult a pediatrician.","Do not administer intravenously as a bolus; follow proper injection technique.","Monitor for allergic reactions during administration."]

🤱 Lactation Safety

Folic acid and methylcobalamin are excreted in breast milk and are considered safe. Consult your doctor for appropriate use.

💊 Overdose Management

Overdose is unlikely due to parenteral administration by a healthcare professional. In case of accidental overdose, symptomatic and supportive treatment should be initiated. Folic acid and methylcobalamin have low toxicity. Contact a poison control center if needed.

⏰ Missed Dose

If you miss a scheduled injection, contact your healthcare provider to reschedule as soon as possible. Do not attempt to self-administer a double dose.

Additional Safety Advice

General Safety

This medicine should only be administered by a qualified healthcare professional. Do not self-administer. Inform your doctor if you are pregnant, planning to become pregnant, or breastfeeding. Before receiving this injection, tell your doctor about all your medical conditions, especially kidney disease, liver disease, or any allergies. Avoid alcohol consumption while receiving this treatment as it may worsen vitamin B12 deficiency. Do not take folic acid supplements without consulting your doctor if you have a history of seizures or are taking certain medications. Regular blood tests may be needed to monitor your response to therapy. Keep all follow-up appointments.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients may have reduced renal function and lower vitamin B12 absorption. Dose adjustment may be needed. Monitor renal function and vitamin levels regularly.

🤰 Pregnancy Planning (TTC)

Folic acid is essential for preventing neural tube defects. Women planning pregnancy should ensure adequate folate intake. Methylcobalamin is safe and may be needed if deficient. Consult your doctor for appropriate supplementation.

🏥 Post-Surgery Considerations

This medicine may be used post-surgery if deficiency is present. Follow your surgeon's instructions regarding diet and supplementation.

🦷 Dental Procedures

No specific precautions. Inform your dentist about this medicine.

💚 Lifestyle Tips for Better Results

🏃
Eat a balanced diet rich in fruits, vegetables, and whole grains.
🥗
Include foods high in vitamin B12 such as meat, fish, eggs, and dairy.
😴
Limit alcohol consumption as it depletes vitamin stores.
💧
Manage underlying conditions like diabetes to prevent neuropathy.
🧘
Engage in regular light exercise to improve circulation.
🌞
Get adequate sleep to support nerve health.

🏋️ Exercise Considerations

No specific exercise restrictions, but patients with neuropathy should avoid activities that may cause injury due to reduced sensation. Consult your doctor before starting any exercise program.

🥗 Diet Recommendations

Include folate-rich foods like leafy greens, legumes, and fortified cereals.
Consume vitamin B12-rich foods like fish, poultry, and dairy.
Avoid excessive alcohol intake.
Stay hydrated.

💼 Impact on Daily Work & Life

This medicine is unlikely to affect your ability to drive or operate machinery. However, if you experience dizziness or allergic reactions, avoid these activities until you feel better.

🛑 When to Stop This Medicine

Do not stop this medicine without consulting your doctor. The duration of treatment depends on the underlying condition and response to therapy. Your doctor will determine when to stop.

📅 Long-Term Use Effects

Long-term use of this medicine is generally safe when prescribed for deficiency states. Prolonged high doses of folic acid may mask vitamin B12 deficiency. Regular monitoring of blood levels is recommended. Neurological improvement may require months of therapy. No serious long-term adverse effects are known with appropriate use.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Oral vitamin B12 and folic acid supplements

Can be used for mild deficiency or maintenance after initial injection therapy.

Evidence: Well-established
Dietary modification

Increasing intake of foods rich in vitamin B12 and folate can help prevent deficiency.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No known interactions with vaccines. Continue routine vaccinations as per schedule.

📦 Storage Guide

✅ DO

Store in refrigerator (2°C to 8°C)

❌ DON'T

Do not freeze

✅ DO

Keep in original container

❌ DON'T

Do not transfer to unmarked containers

✅ DO

Protect from light

❌ DON'T

Do not store in direct sunlight

✈️ Traveling with This Medicine

When traveling, carry this medicine in its original packaging with a copy of your prescription. Store it in a cool, dry place, preferably refrigerated. If refrigeration is not available, use a cool bag. Inform airport security about your medication. Plan for time zone changes if you need to take it at specific times. Consult your doctor before travel for dose adjustments.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 55-year-old man with type 2 diabetes and peripheral neuropathy
He was prescribed this medicine weekly for his tingling and numbness in feet. After 4 weeks, he noticed significant improvement in sensation and reduced pain. He continued treatment for 3 months under supervision.
💡 Lesson: Regular injections and good glycemic control can improve neuropathic symptoms.
👤 A 32-year-old woman with megaloblastic anemia due to vitamin B12 deficiency
She presented with fatigue and shortness of breath. After receiving this injection daily for a week, her energy levels improved and blood counts normalized. She was then switched to oral supplements.
💡 Lesson: Parenteral therapy rapidly corrects severe deficiencies, followed by oral maintenance.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: Hematological improvement may be seen within 24-48 hours, but neurological symptoms may take weeks to months to improve.

Q: Can I take this injection at home?

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

Q: Is it safe during pregnancy?

A: Folic acid and methylcobalamin are considered safe during pregnancy when used as directed. Consult your doctor for proper dosing.

🤔 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?

🔄 Substitutes for bigvin-fc injection

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: This injection can be self-administered at home.
    Fact: No, it must be given by a healthcare professional.
  • Myth: It is a painkiller.
    Fact: No, it is a vitamin supplement used for deficiency and nerve health.
  • Myth: It can cure all types of anemia.
    Fact: It is only effective for anemia caused by folic acid or vitamin B12 deficiency.

🔄 Alternative Options

Generic Alternatives

  • Folic acid + methylcobalamin injection (generic)

Brand Alternatives

  • Meaxon Plus Injection

📊 Comparison with Similar Medicines

[{"medicine":"Meaxon Plus Injection","composition":"Folic Acid 0.7 mg + Methylcobalamin 1500 mcg","route":"Parenteral","primary_use":"Vitamin deficiency, neuropathy"},{"medicine":"Methylcobalamin Injection","composition":"Methylcobalamin 1500 mcg","route":"Parenteral","primary_use":"Vitamin B12 deficiency, neuropathy"},{"medicine":"Folic Acid Injection","composition":"Folic Acid 0.7 mg","route":"Parenteral","primary_use":"Folate deficiency"}]

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