autic 250mg injection - Acyclovir (250mg) medicine

Allvir 250mg Injection: Complete Medicine Guide

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🏭 H & I Critical Care 📦 Varies by brand 💊 Allopathy 📅 Updated: Oct 22, 2026
⚠️ Hepatotoxicity Risk ⚠️ Nephrotoxicity Risk 📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established
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

  • Decreased urine output or no urine output
  • Severe confusion, hallucinations, or seizures
  • Difficulty breathing or swelling of face, lips, or throat
  • Severe abdominal pain or blood in vomit
  • Yellowing of skin or eyes
  • Unusual bruising or bleeding
  • Persistent high fever

If experiencing severe symptoms, call emergency services immediately.

What is autic 250mg injection used for?

This medicine is an antiviral injection containing acyclovir 250mg, used to treat serious herpes simplex and varicella-zoster virus infections. It works by stopping the virus from multiplying. It is given intravenously by a healthcare professional, usually in a hospital setting.

  • Generic Name: Acyclovir
  • Manufacturer: H & I Critical Care
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 autic 250mg injection के बारे में (Hindi Summary)

उपयोग: यह दवा एसाइक्लोविर 250mg इंजेक्शन है, जिसका उपयोग गंभीर हर्पीस सिंप्लेक्स और वैरिसेला-ज़ोस्टर वायरस संक्रमणों के इलाज के लिए किया जाता है। यह वायरस को बढ़ने से रोकती है और शरीर को संक्रमण से लड़ने में मदद करती है। यह आमतौर पर अस्पताल में डॉक्टर या नर्स द्वारा नस के माध्यम से दी जाती है।

साइड इफेक्ट्स: आम दुष्प्रभावों में इंजेक्शन स्थल पर दर्द, लालिमा या सूजन, मतली, उल्टी, दस्त, सिरदर्द और चक्कर आना शामिल हैं। गंभीर दुष्प्रभावों में गुर्दे की समस्या, भ्रम, मतिभ्रम, दौरे और एलर्जी प्रतिक्रिया हो सकती है। कोई भी असामान्य लक्षण दिखने पर तुरंत डॉक्टर को बताएं।

सुरक्षा सलाह: यह दवा केवल स्वास्थ्य पेशेवर द्वारा अस्पताल या क्लिनिक में ही दी जानी चाहिए। अपने डॉक्टर को अपनी सभी चिकित्सीय स्थितियों, विशेषकर गुर्दे की बीमारी, और सभी दवाओं के बारे में बताएं। उपचार के दौरान पर्याप्त पानी पिएं। शराब से बचें। एलर्जी, पेशाब में कमी या तंत्रिका संबंधी लक्षण दिखने पर तुरंत डॉक्टर से संपर्क करें।

💡 Did You Know? India has the highest number of USFDA-compliant plants outside the USA.

💊 autic 250mg injection Uses & Benefits

[{"condition":"Herpes simplex virus infections (severe)","description":"Used for severe mucocutaneous herpes simplex infections in immunocompromised patients or when oral therapy is not possible.","evidence":"Well-established"},{"condition":"Varicella-zoster virus infections (severe)","description":"Indicated for severe chickenpox or shingles in immunocompromised patients or those with complicated disease.","evidence":"Well-established"},{"condition":"Herpes simplex encephalitis","description":"A life-threatening infection of the brain treated with intravenous acyclovir.","evidence":"Well-established"},{"condition":"Neonatal herpes simplex virus infections","description":"Used in newborns with disseminated or central nervous system herpes simplex virus disease.","evidence":"Well-established"},{"condition":"Genital herpes (severe or disseminated)","description":"For severe primary genital herpes or disseminated disease requiring hospitalization.","evidence":"Well-established"}]

Off-label uses: [{"condition":"Prevention of herpes simplex virus reactivation in immunocompromised patients","description":"Sometimes used prophylactically in transplant patients or those on immunosuppressive therapy.","evidence":"Moderate"},{"condition":"Bell's palsy","description":"Occasionally used in combination with corticosteroids, though evidence is conflicting.","evidence":"Limited"}]

Primary treatment for: Herpes simplex virus infections

Also treats: Varicella-zoster virus infections, Herpes simplex encephalitis, Neonatal herpes, Genital herpes

📋 Drug Information

Generic Name(s)Acyclovir
Brand NameAcivir 400 DT Tablet
ManufacturerH & I Critical Care
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassANTI INFECTIVES
Action ClassAntiviral (Non-HIV) drugs
Route of AdministrationParenteral (intravenous infusion)
StorageStore at room temperature (15°C to 25°C). Protect from light. Do not freeze. Once reconstituted, use as directed by the healthcare provider; typically use within 12 hours if stored at room temperature or 24 hours if refrigerated.
Shelf LifeRefer to the product packaging for the expiration date. Do not use after the expiry date.
WHO GuidelineThe World Health Organization recommends acyclovir for the treatment of herpes simplex virus and varicella-zoster virus infections, including neonatal herpes and herpes simplex encephalitis, based on established efficacy.
ICMR GuidelineThe Indian Council of Medical Research recognizes acyclovir as a standard treatment for herpes simplex virus and varicella-zoster virus infections in appropriate clinical settings.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Administer the injection slowly over at least 1 hour to prevent kidney damage.
2
Ensure the patient is well hydrated before and after the infusion.
3
Adjust the dose based on renal function; check serum creatinine regularly.
4
Monitor elderly patients for confusion or hallucinations.
5
Avoid concurrent use with other nephrotoxic drugs if possible.
6
Educate the patient about reporting any signs of allergic reaction immediately.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Painful blisters or sores
This medicine is used for severe herpes infections.
Likely Use
✅
Fever with rash
May be used for severe chickenpox or shingles.
Likely Use
❌
Common cold
This medicine is not effective against cold viruses.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionThis medicine is administered intravenously, so absorption is not applicable. It achieves complete bioavailability directly into the bloodstream.
DistributionAcyclovir distributes widely into body tissues and fluids, including cerebrospinal fluid, aqueous humor, and vesicular fluid. It crosses the placenta and is excreted in breast milk. Plasma protein binding is low, approximately 9% to 33%.
Protein BindingApproximately 9% to 33% bound to plasma proteins.
MetabolismAcyclovir is minimally metabolized in the liver. The primary route of elimination is renal excretion of unchanged drug.
Half-LifeThe elimination half-life is approximately 2.5 to 3.3 hours in adults with normal renal function. It is prolonged in patients with renal impairment.
ExcretionAcyclovir is excreted primarily unchanged in the urine by glomerular filtration and tubular secretion. Renal clearance accounts for about 75% to 80% of total clearance.
BioavailabilityNot applicable for intravenous administration; bioavailability is 100%.
Onset of ActionThe antiviral effect begins rapidly after intravenous administration, but clinical improvement may take 24 to 48 hours or longer depending on the infection.
Peak Plasma TimePeak plasma concentrations are achieved at the end of the intravenous infusion.
Duration of ActionThe duration of action depends on the dosing interval and the half-life. With normal renal function, effective concentrations are maintained with dosing every 8 hours.

How It Works

Acyclovir is an antiviral agent that is selectively activated by viral thymidine kinase. It is converted to acyclovir monophosphate, then to the diphosphate, and finally to the active triphosphate form. Acyclovir triphosphate competes with deoxyguanosine triphosphate for incorporation into viral DNA by viral DNA polymerase. Once incorporated, it acts as a chain terminator because it lacks the 3'-hydroxyl group needed for further DNA elongation. This inhibits viral DNA synthesis and replication. Acyclovir has a much higher affinity for viral DNA polymerase than for human cellular DNA polymerase, which contributes to its selective toxicity.

Mechanism Steps

1
Viral thymidine kinase activation: Acyclovir enters the cell and is phosphorylated by viral thymidine kinase to acyclovir monophosphate.
2
Conversion to active triphosphate: Cellular kinases convert acyclovir monophosphate to acyclovir diphosphate and then to the active acyclovir triphosphate.
3
Competition with natural substrate: Acyclovir triphosphate competes with deoxyguanosine triphosphate for binding to viral DNA polymerase.
4
DNA chain termination: Acyclovir triphosphate is incorporated into the growing viral DNA chain, causing termination because it lacks the 3'-hydroxyl group.
5
Inhibition of viral replication: The terminated DNA chain cannot be extended, preventing viral DNA synthesis and replication.

💡 How to Take autic 250mg injection

Strength: 250mg injection

1This medicine is administered by a healthcare professional in a hospital or clinic setting.
2It is given as a slow intravenous infusion over at least 1 hour.
3Ensure you are well hydrated before and during the infusion.
4Report any pain, redness, or swelling at the injection site to your nurse.
5Do not attempt to self-administer this injection.

Dosage Information

Adult DosageThe dose of this medicine is individualized by a qualified clinician based on the indication, severity of infection, age, weight, and renal function. For herpes simplex infections, a typical adult dose is 5 mg/kg every 8 hours; for varicella-zoster infections, 10 mg/kg every 8 hours; for herpes simplex encephalitis, 10 mg/kg every 8 hours. Doses must be adjusted in renal impairment. This information is for educational purposes only and not a substitute for professional medical advice.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician for appropriate dosing in children.
Elderly DosageElderly patients may require dose reduction based on renal function. Monitor closely for neurological side effects.
Renal ImpairmentDose adjustment is required in patients with renal impairment. For creatinine clearance 25-50 mL/min, dose may be given every 12 hours; for 10-25 mL/min, every 24 hours; for less than 10 mL/min, dose may be reduced by 50% and given every 24 hours. Consult a clinician for precise dosing.
Hepatic ImpairmentNo specific dose adjustment is established for hepatic impairment. Use with caution and monitor liver function.
Maximum Daily DoseThe maximum daily dose depends on the indication and renal function. For severe infections, up to 30 mg/kg/day may be used in divided doses. Individualized by clinician.

Dosage Timeline

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

🍽️ Food Timing Guide

No specific food interactions
Not applicable
This medicine is given intravenously, so food does not affect it.

⏰ What to Do If You Miss a Dose

📌 If a dose is missed in the hospital
→ Inform your nurse or doctor immediately.
💡 They will adjust the schedule accordingly. Do not attempt to self-administer.

⚠️ Side Effects of autic 250mg injection

✅ Common Side Effects

Injection site reactions (pain, redness, swelling) (Common (5-10%))
Apply a cold compress if needed. Report to your nurse or doctor if severe.
Nausea (Common (5-10%))
Take small sips of water. Inform your doctor if persistent.
Vomiting (Common (5-10%))
Stay hydrated. Contact your doctor if you cannot keep fluids down.
Diarrhea (Common (5-10%))
Drink plenty of fluids. Seek medical advice if it becomes severe or bloody.
Headache (Common (5-10%))
Rest and stay hydrated. Consult your doctor if it persists.
Dizziness (Common (5-10%))
Avoid driving or operating machinery until you feel normal.

🚨 Serious Side Effects

Nephrotoxicity (kidney damage) (Uncommon (1-5%))
Seek immediate medical attention if you notice decreased urine output, swelling, or fatigue. Adequate hydration is important.
Neurotoxicity (confusion, hallucinations, seizures) (Rare (<1%))
Report immediately to your doctor if you experience confusion, tremors, or seizures.
Severe allergic reactions (anaphylaxis) (Rare (<0.1%))
Seek emergency help if you have difficulty breathing, swelling of face or throat, or a severe rash.
Blood disorders (thrombocytopenia, leukopenia) (Rare (<0.1%))
Report unusual bruising or bleeding to your doctor.
Hepatotoxicity (liver inflammation) (Rare (<0.1%))
Report yellowing of skin or eyes, dark urine, or abdominal pain.

⚠️ Rare Side Effects

Encephalopathy
Seek immediate medical attention for confusion, drowsiness, or coma.
Psychosis
Report hallucinations or delusions to your doctor immediately.
Acute renal failure
Seek emergency care if you have no urine output or severe swelling.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Probenecid Major
Zidovudine Major
Amphotericin B Major
Cimetidine Moderate
Mycophenolate mofetil Moderate
Tacrolimus Moderate
Thiazide diuretics Minor
Theophylline Minor

🚨 Major Interactions

  • Nephrotoxic drugs (e.g., amphotericin B, aminoglycosides, NSAIDs)
  • Probenecid
  • Zidovudine

⚡ Moderate Interactions

  • Cimetidine
  • Mycophenolate mofetil
  • Tacrolimus

🍷 Alcohol Interaction

Alcohol may worsen dizziness and drowsiness caused by this medicine. It is advisable to avoid alcohol during treatment.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Known hypersensitivity to acyclovir, valacyclovir, or any component of the formulation","Severe renal impairment without dose adjustment (relative contraindication)"]

⚠️ Warnings & Precautions

["Administer by slow intravenous infusion over at least 1 hour to reduce risk of renal damage.","Ensure adequate hydration before and during infusion.","Use with caution in patients with renal impairment; dose adjustment is required.","Elderly patients are at higher risk of neurological side effects.","Avoid rapid bolus injection.","Monitor for signs of neurotoxicity, especially in patients with renal failure.","Not for intramuscular or subcutaneous administration."]

🤱 Lactation Safety

Acyclovir is excreted in breast milk. It is generally considered safe during breastfeeding, but consult your doctor to weigh the benefits and risks.

💊 Overdose Management

Overdose may cause nausea, vomiting, headache, and renal failure. Treatment is supportive and symptomatic. Hemodialysis may be considered to remove acyclovir from the blood in severe cases. Contact a poison control center or emergency department immediately if overdose is suspected.

⏰ Missed Dose

If a dose is missed, contact your healthcare provider for guidance. Do not attempt to double the dose. The dosing schedule is managed by healthcare professionals in a clinical setting.

Additional Safety Advice

General Safety

This medicine must be administered by a healthcare professional in a clinical setting. It is important to inform your doctor about all your medical conditions, especially kidney disease, and all medicines you are taking, including over-the-counter products. Adequate hydration is essential during treatment to help prevent kidney problems. Do not attempt to self-administer this injection. If you miss a dose, contact your healthcare provider for guidance. Avoid alcohol during treatment as it may worsen side effects. Report any signs of allergic reaction, decreased urine output, or neurological symptoms immediately.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are at higher risk of kidney and neurological side effects. Dose adjustment based on renal function is essential. Monitor closely for confusion or hallucinations.

🤰 Pregnancy Planning (TTC)

If you are planning pregnancy, consult your doctor before starting this medicine. It is generally considered safe when needed, but individual assessment is required.

🏥 Post-Surgery Considerations

If you have recently had surgery, inform your doctor. This medicine may be used if there is a risk of herpes reactivation, but dose adjustment may be needed.

🦷 Dental Procedures

Inform your dentist if you are on this medicine. No specific precautions are established, but good hydration is important.

💚 Lifestyle Tips for Better Results

🏃
Stay well hydrated by drinking plenty of fluids.
🥗
Get adequate rest to support your immune system.
😴
Avoid alcohol during treatment.
💧
Practice good hygiene to prevent spreading the virus.
🧘
Follow up with your doctor regularly.

🏋️ Exercise Considerations

Avoid strenuous exercise during treatment, especially if you feel dizzy or weak. Light activity is fine as tolerated.

🥗 Diet Recommendations

Drink plenty of water
Eat a balanced diet rich in fruits and vegetables
Avoid alcohol
Limit caffeine if it worsens dizziness

💼 Impact on Daily Work & Life

This medicine is given in a hospital, so you will need to take time off work. You may feel dizzy or tired; avoid driving or operating machinery until you feel normal.

🛑 When to Stop This Medicine

Do not stop this medicine without consulting your doctor. The full course must be completed as prescribed to prevent resistance and relapse.

📅 Long-Term Use Effects

Long-term use of this medicine is not common. Prolonged use may increase the risk of kidney and neurological side effects. Regular monitoring of kidney function and blood counts is advised if extended therapy is required.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Oral antiviral therapy

For milder infections, oral acyclovir or valacyclovir may be used instead of injection.

Evidence: Well-established
Topical antivirals

For localized herpes labialis, topical acyclovir cream may be used.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No specific vaccine interactions are established. Live vaccines should be avoided during acute infection. Consult your doctor.

📦 Storage Guide

✅ DO

Store at room temperature (15-25°C)

❌ DON'T

Do not freeze

✅ DO

Protect from light

❌ DON'T

Do not use if the solution is discolored or contains particles

✅ DO

Keep in original packaging

❌ DON'T

Do not store in bathroom

✈️ Traveling with This Medicine

This medicine is given in a hospital setting, so travel is not applicable. If you are prescribed oral acyclovir for travel, carry it in its original packaging with a copy of your prescription. Store at room temperature and protect from light. Check customs regulations for controlled medicines.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 60-year-old man with shingles and mild kidney disease
He was admitted for severe shingles and started on this medicine intravenously. His dose was adjusted for his kidney function, and he was encouraged to drink fluids. He recovered well without kidney problems.
💡 Lesson: Dose adjustment and hydration are crucial in patients with kidney disease to prevent complications.
👤 A 35-year-old woman with severe genital herpes
She received this medicine intravenously for 5 days. Her lesions healed faster, and pain reduced significantly. She was advised to complete the full course and follow up.
💡 Lesson: Early treatment with this medicine can speed up healing and reduce pain in severe herpes infections.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: You may start feeling better within 24 to 48 hours, but complete healing may take longer depending on the infection.

Q: Can I take this medicine at home?

A: No, this medicine must be given by a healthcare professional in a hospital or clinic.

Q: What if I miss a dose?

A: Inform your nurse or doctor immediately; they will adjust your schedule.

Q: Is it safe in pregnancy?

A: It is generally considered safe when needed, but consult your doctor to weigh benefits and risks.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I take this medicine if I have kidney disease?
  • How long will I need to stay in the hospital?
  • Will this medicine affect my pregnancy?
  • Can I breastfeed while on this medicine?
  • What should I do if I miss a dose?
  • Are there any food restrictions?

🔄 Substitutes for autic 250mg injection

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: Acyclovir injection can cure any viral infection.
    Fact: Acyclovir is only effective against certain herpesviruses, not all viruses.
  • Myth: You can stop the injection as soon as you feel better.
    Fact: The full course must be completed as prescribed to prevent resistance and relapse.
  • Myth: Acyclovir injection is safe for everyone.
    Fact: It requires dose adjustment in kidney disease and is not for everyone.

🔄 Alternative Options

Generic Alternatives

  • Acyclovir 250mg injection (generic)

Brand Alternatives

  • Zovirax
  • Acivir
  • Ciclovir

📊 Comparison with Similar Medicines

[{"medicine":"Acyclovir","class":"Nucleoside analogue","route":"Intravenous","common_use":"Herpes simplex, varicella-zoster"},{"medicine":"Valacyclovir","class":"Nucleoside analogue prodrug","route":"Oral","common_use":"Herpes simplex, varicella-zoster"},{"medicine":"Famciclovir","class":"Nucleoside analogue prodrug","route":"Oral","common_use":"Herpes zoster, genital herpes"},{"medicine":"Ganciclovir","class":"Nucleoside analogue","route":"Intravenous, oral","common_use":"Cytomegalovirus"}]

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