alnerve 500mcg injection - Methylcobalamin (500mcg) medicine

Atobiz MC 500mcg Injection: Complete Medicine Guide

No reviews yet
🏭 General Pharmaceuticals Pvt Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 23, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for vitamin B12 deficiency; moderate for neuropathy.
Reviewed by
SaathiMed Expert Panel | Sep 23, 2026

When to Call Your Doctor IMMEDIATELY

  • Difficulty breathing or swallowing
  • Swelling of face, lips, tongue, or throat
  • Severe rash or hives
  • Chest pain or palpitations
  • Severe dizziness or fainting
  • Unusual bleeding or bruising

If experiencing severe symptoms, call emergency services immediately.

What is alnerve 500mcg injection used for?

This medicine is an injectable form of Methylcobalamin 500mcg used to treat vitamin B12 deficiency and related nerve problems. It is given intravenously by a healthcare professional.

  • Generic Name: Methylcobalamin
  • Manufacturer: General Pharmaceuticals Pvt Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 alnerve 500mcg injection के बारे में (Hindi Summary)

उपयोग: यह दवा मेथिलकोबालामिन 500mcg का इंजेक्शन है, जिसका उपयोग विटामिन बी12 की कमी, नसों की समस्या (न्यूरोपैथी), और मेगालोब्लास्टिक एनीमिया के इलाज में किया जाता है। यह नसों को स्वस्थ रखने और लाल रक्त कोशिकाओं के निर्माण में मदद करती है। यह इंजेक्शन डॉक्टर द्वारा नस में दिया जाता है।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में इंजेक्शन की जगह पर दर्द, लालिमा, या सूजन, जी मिचलाना, सिरदर्द, और चक्कर आना शामिल हैं। गंभीर एलर्जी प्रतिक्रियाएँ दुर्लभ हैं लेकिन तुरंत डॉक्टर से संपर्क करें यदि सांस लेने में कठिनाई, चेहरे या गले में सूजन हो।

सुरक्षा सलाह: यह दवा केवल डॉक्टर या स्वास्थ्यकर्मी द्वारा ही दी जानी चाहिए। खुद से इंजेक्शन न लगाएं। यदि आप गर्भवती हैं, स्तनपान करा रही हैं, या कोई अन्य दवा ले रही हैं, तो डॉक्टर को बताएं। शराब का सेवन न करें। किडनी या लीवर की समस्या हो तो डॉक्टर को सूचित करें।

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

💊 alnerve 500mcg injection Uses & Benefits

[{"condition":"Vitamin B12 deficiency","description":"This medicine is used to treat confirmed vitamin B12 deficiency when oral supplementation is inadequate or not feasible.","evidence":"Well-established"},{"condition":"Peripheral neuropathy","description":"It helps in the management of peripheral neuropathy by supporting nerve regeneration and function.","evidence":"Well-established"},{"condition":"Diabetic neuropathy","description":"This medicine is often prescribed to diabetic patients to alleviate neuropathic symptoms and improve nerve health.","evidence":"Moderate"},{"condition":"Megaloblastic anemia","description":"It is used to treat megaloblastic anemia caused by vitamin B12 deficiency.","evidence":"Well-established"},{"condition":"Hyperhomocysteinemia","description":"Methylcobalamin helps lower elevated homocysteine levels, which is a risk factor for cardiovascular diseases.","evidence":"Moderate"}]

Off-label uses: [{"condition":"Chronic fatigue syndrome","description":"Sometimes used off-label to improve energy levels in patients with chronic fatigue, though evidence is limited.","evidence":"Limited"},{"condition":"Alzheimer's disease","description":"Preliminary studies suggest potential benefit in slowing cognitive decline, but more research is needed.","evidence":"Limited"},{"condition":"Insomnia","description":"Occasionally used off-label to improve sleep quality, but evidence is anecdotal.","evidence":"Insufficient"}]

Primary treatment for: Vitamin B12 deficiency

Also treats: Peripheral neuropathy, Diabetic neuropathy, Megaloblastic anemia, Hyperhomocysteinemia

📋 Drug Information

Generic Name(s)Methylcobalamin
Brand NameAlamin Injection
ManufacturerGeneral Pharmaceuticals Pvt Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassVITAMINS MINERALS NUTRIENTS
Action ClassVitamins
Route of AdministrationIntravenous
StorageStore in a refrigerator (2-8°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
Administer this medicine only in a clinical setting by a trained professional.
2
Monitor vitamin B12 levels periodically to assess treatment response.
3
Assess renal and hepatic function before initiating therapy.
4
Advise patients to avoid alcohol during treatment.
5
Educate patients about recognizing signs of allergic reactions.
6
Consider oral supplementation once acute deficiency is corrected.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

Fatigue and weakness
This medicine is commonly prescribed for fatigue due to vitamin B12 deficiency.
Likely Use
Tingling or numbness in hands and feet
It is used for neuropathy associated with B12 deficiency.
Likely Use
Fever
This medicine is not a primary fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionFollowing intravenous administration, methylcobalamin is completely bioavailable as it bypasses the gastrointestinal absorption process.
DistributionMethylcobalamin is distributed widely throughout the body, with high concentrations in the liver, kidneys, and nervous tissues. It is transported in the blood bound to transcobalamin II.
Protein BindingMethylcobalamin is highly bound to plasma proteins, primarily transcobalamin II.
MetabolismMethylcobalamin is not extensively metabolized; it is used directly as a coenzyme or converted to other cobalamin forms.
Half-LifeThe elimination half-life of methylcobalamin is approximately 6 days, but this can vary based on individual factors.
ExcretionMethylcobalamin is primarily excreted in the urine, with some excretion in bile and feces.
Bioavailability100% bioavailable when administered intravenously.
Onset of ActionThe onset of action is rapid, with effects on biochemical parameters observed within hours, but clinical improvement may take days to weeks.
Peak Plasma TimePeak plasma concentrations are achieved immediately after intravenous injection.
Duration of ActionThe duration of action depends on the indication and individual patient factors, but the effects on vitamin B12 levels can last for several days to weeks.

How It Works

Methylcobalamin is a coenzyme form of vitamin B12. It acts as a cofactor for methionine synthase, an enzyme that converts homocysteine to methionine. This reaction is essential for the synthesis of methionine, which is required for the production of S-adenosylmethionine (SAMe), a major methyl donor in the body. Methylcobalamin also plays a role in the conversion of methylmalonyl-CoA to succinyl-CoA, which is important for normal nerve function. By supporting these biochemical pathways, methylcobalamin helps maintain the integrity of the myelin sheath surrounding nerves, aids in red blood cell production, and supports DNA synthesis.

Mechanism Steps

1
Uptake and conversion: After intravenous administration, methylcobalamin is taken up by tissues and converted into its active coenzyme forms.
2
Methionine synthase activation: Methylcobalamin acts as a cofactor for methionine synthase, facilitating the conversion of homocysteine to methionine.
3
SAMe production: The methionine produced is then converted to S-adenosylmethionine (SAMe), which is involved in methylation reactions.
4
Nerve function support: Methylcobalamin also supports the conversion of methylmalonyl-CoA to succinyl-CoA, which is essential for maintaining healthy myelin sheaths.
5
Red blood cell formation: By supporting DNA synthesis, methylcobalamin aids in the production of healthy red blood cells.

💡 How to Take alnerve 500mcg injection

Strength: 500mcg injection

1This medicine is administered by a healthcare professional in a clinical setting.
2Do not attempt to self-administer.
3The injection is given intravenously over a short period.
4Follow your doctor's schedule for subsequent doses.
5Report any side effects immediately.

Dosage Information

Adult DosageThe usual adult dose of this medicine is 500mcg administered intravenously once daily or as directed by the physician. The frequency and duration of treatment depend on the underlying condition and the patient's response. 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 require dose adjustment based on renal function. Consult your doctor for personalized dosing.
Renal ImpairmentNo specific dose adjustment is recommended for renal impairment, but caution is advised. Consult your doctor.
Hepatic ImpairmentNo specific dose adjustment is recommended for hepatic impairment, but caution is advised. Consult your doctor.
Maximum Daily DoseThe maximum daily dose should not exceed 1500mcg unless directed by a physician.

Dosage Timeline

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

🍽️ Food Timing Guide

Alcohol
Avoid
May worsen vitamin B12 deficiency and reduce treatment efficacy.

⏰ What to Do If You Miss a Dose

📌 If you miss a scheduled injection appointment
→ Contact your doctor to reschedule as soon as possible.
💡 Do not attempt to self-administer a double dose.

⚠️ Side Effects of alnerve 500mcg injection

✅ Common Side Effects

Injection site reactions (Common (1-10%))
Apply a cold compress to the site. Inform your doctor if it persists.
Nausea (Common (1-10%))
Take small, frequent meals. Consult your doctor if it continues.
Headache (Common (1-10%))
Rest and stay hydrated. Consult your doctor if severe.
Dizziness (Uncommon (0.1-1%))
Avoid driving or operating machinery until you feel normal.

🚨 Serious Side Effects

Anaphylaxis (Rare (<0.1%))
Seek immediate medical attention if you experience swelling of the face, lips, tongue, or throat, difficulty breathing, or a severe rash.
Severe allergic reaction (Rare (<0.1%))
Discontinue use and get emergency help if you have hives, itching, or swelling.
Pulmonary edema (Very rare (<0.01%))
Seek immediate medical attention if you experience shortness of breath or chest pain.

⚠️ Rare Side Effects

Palpitations
Report to your doctor if you notice irregular heartbeat.
Muscle pain
Consult your doctor if it persists.
Skin rash
Discontinue and consult your doctor.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Chloramphenicol Major
Omeprazole Moderate
Metformin Moderate
Colchicine Moderate
Ascorbic acid Minor

🚨 Major Interactions

  • Chloramphenicol
  • Omeprazole

⚡ Moderate Interactions

  • Metformin
  • Colchicine

🍷 Alcohol Interaction

Alcohol consumption should be avoided while receiving this medicine, as it can exacerbate vitamin B12 deficiency and interfere with treatment outcomes.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Known hypersensitivity to methylcobalamin or any component of the formulation","Cobalt allergy","Leber's disease (hereditary optic nerve atrophy)"]

⚠️ Warnings & Precautions

["This medicine should only be administered by a healthcare professional.","Do not use if the solution is discolored or contains particles.","Use with caution in patients with renal or hepatic impairment.","Inform your doctor if you are pregnant or breastfeeding.","Avoid alcohol during treatment.","Do not drive or operate machinery if you experience dizziness after injection."]

🤱 Lactation Safety

Methylcobalamin is excreted in breast milk and is considered safe for nursing mothers when used as prescribed. Consult your doctor before use.

💊 Overdose Management

Overdose with methylcobalamin is unlikely due to its low toxicity. In case of accidental overdose, seek medical attention and provide supportive care as needed.

⏰ Missed Dose

Since this medicine is administered by a healthcare professional, missed doses are unlikely. If you miss a scheduled appointment for your injection, contact your doctor to reschedule as soon as possible. Do not attempt to self-administer a double dose.

Additional Safety Advice

General Safety

This medicine must be administered only by a qualified healthcare professional in a clinical setting. Do not attempt to self-administer. Inform your doctor if you are pregnant, planning to become pregnant, or breastfeeding. Provide a complete list of all medicines, supplements, and herbal products you are taking, as some may interact with this medicine. Avoid alcohol consumption while receiving this treatment, as it may worsen vitamin B12 deficiency. If you have kidney or liver problems, your doctor may need to adjust the dose or monitor you more closely. Do not receive this medicine if you have a known allergy to methylcobalamin or cobalt. Keep all follow-up appointments and laboratory tests as advised by your doctor.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients may have reduced renal function and may require dose adjustments. Regular monitoring of vitamin B12 levels and renal function is advised.

🤰 Pregnancy Planning (TTC)

If you are planning to become pregnant, consult your doctor about vitamin B12 supplementation. Adequate levels are important for fetal development.

🏥 Post-Surgery Considerations

This medicine can be used after surgery if vitamin B12 deficiency is present. Follow your surgeon's and physician's advice regarding administration.

🦷 Dental Procedures

Inform your dentist about this medicine before any dental procedure. No specific precautions are typically needed, but it is important for your healthcare providers to know your medication history.

💚 Lifestyle Tips for Better Results

🏃
Eat a balanced diet rich in vitamin B12 sources like meat, fish, eggs, and dairy.
🥗
Limit alcohol consumption.
😴
Manage underlying conditions like diabetes to prevent neuropathy.
💧
Engage in regular physical activity to improve nerve health.
🧘
Get adequate sleep to support overall well-being.
🌞
Quit smoking to improve circulation.

🏋️ Exercise Considerations

Moderate exercise is generally safe, but if you experience dizziness or weakness after injection, avoid strenuous activities until you feel better. Consult your doctor before starting any new exercise regimen.

🥗 Diet Recommendations

Include vitamin B12-rich foods such as lean meats, fish, eggs, and dairy.
Fortified cereals and plant-based milks can help if you are vegetarian.
Avoid excessive alcohol intake.
Stay hydrated.

💼 Impact on Daily Work & Life

This medicine may cause dizziness in some individuals. Avoid driving or operating heavy machinery until you know how it affects you. Most people can continue their normal activities, but listen to your body and rest if needed.

🛑 When to Stop This Medicine

Do not stop this medicine without consulting your doctor. Your doctor will determine the appropriate duration of treatment based on your condition and response. If you experience severe side effects, seek medical advice immediately.

📅 Long-Term Use Effects

Long-term use of this medicine is generally safe when monitored by a healthcare professional. Regular monitoring of vitamin B12 levels and neurological function is recommended. Prolonged high doses may lead to elevated vitamin B12 levels, but toxicity is rare. Follow-up with your doctor is essential to adjust therapy as needed.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Oral vitamin B12 supplements

May be sufficient for mild deficiency or maintenance after initial injection therapy.

Evidence: Well-established
Dietary modifications

Increasing intake of vitamin B12-rich foods can help prevent deficiency.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No known interactions with vaccines. However, inform your healthcare provider about this medicine before receiving any vaccine.

📦 Storage Guide

✅ DO

Store in refrigerator (2-8°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 at room temperature for prolonged periods

✈️ Traveling with This Medicine

When traveling, carry this medicine in its original packaging with a copy of your prescription. Store it in a cool, refrigerated place if possible, or use a cooler bag. Inform security personnel about the injection and any necessary documentation. Plan ahead for doses that may be due during travel; consult your doctor for adjustments.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 55-year-old man with diabetic neuropathy
He received this medicine intravenously once daily for two weeks. He reported significant reduction in tingling and numbness in his feet. He was advised to continue oral vitamin B12 supplements thereafter.
💡 Lesson: Regular injections can rapidly improve neuropathic symptoms in vitamin B12 deficiency.
👤 A 30-year-old woman with megaloblastic anemia
She presented with fatigue and shortness of breath. After a course of this medicine, her hemoglobin levels improved and energy levels returned to normal. She was monitored for any adverse reactions.
💡 Lesson: This medicine effectively corrects anemia due to vitamin B12 deficiency when given appropriately.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: Improvement in symptoms may be seen within a few days to weeks, depending on the severity of deficiency and individual response.

Q: Is this injection painful?

A: Intravenous injection is generally not painful, but you may feel a slight pinch. Report any discomfort to your healthcare provider.

Q: Can I switch to oral tablets?

A: Your doctor may switch you to oral supplements once your levels are corrected, but this depends on the underlying cause.

🤔 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 alnerve 500mcg 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 intravenously.
  • Myth: It is a painkiller.
    Fact: It is a vitamin supplement, not a painkiller.
  • Myth: It can cure all types of nerve pain.
    Fact: It is effective only for nerve pain caused by vitamin B12 deficiency.

🔄 Alternative Options

Generic Alternatives

  • Methylcobalamin 500mcg injection

Brand Alternatives

  • Atobiz MC 500mcg injection

📊 Comparison with Similar Medicines

[{"medicine":"Atobiz MC 500mcg injection","active_ingredient":"Methylcobalamin","strength":"500mcg","route":"Intravenous","brand":"Medley Pharmaceuticals"},{"medicine":"Mecobalamin 500mcg injection","active_ingredient":"Mecobalamin","strength":"500mcg","route":"Intravenous","brand":"Various"}]

😊 Was this information helpful?

Browse Medicines A-Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Back to Medicines Directory