Acivir 500 Infusion: Complete Medicine Guide
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
- Sudden swelling in the legs, ankles, or feet
- Severe confusion, hallucinations, or seizures
- Difficulty breathing or swelling of the face, lips, or throat
- Severe abdominal pain or blood in vomit or stool
- Yellowing of the skin or eyes (jaundice)
- Unusual bruising or bleeding
- Chest pain or irregular heartbeat
- Severe headache with visual changes
- High fever with chills and worsening symptoms
If experiencing severe symptoms, call emergency services immediately.
What is aciclovin 500mg injection used for?
This medicine is an intravenous antiviral used to treat severe herpes simplex and varicella-zoster virus infections. It works by stopping the virus from multiplying. It is given by a healthcare professional in a hospital setting. Common side effects include nausea, headache, and injection site reactions. Serious side effects include kidney problems and neurological symptoms. Always follow your doctor's instructions and stay hydrated during treatment.
- Generic Name: Acyclovir
- Manufacturer: Scotmed Care Pvt Ltd
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 aciclovin 500mg injection के बारे में (Hindi Summary)
उपयोग: यह दवा एसिडोविर 500 मिलीग्राम इन्फ्यूजन है, जिसका उपयोग हर्पीस सिम्प्लेक्स वायरस और वैरिसेला-ज़ोस्टर वायरस के गंभीर संक्रमणों के इलाज के लिए किया जाता है। यह दवा वायरस को शरीर में फैलने से रोकती है और लक्षणों को कम करती है। यह अस्पताल में डॉक्टर या नर्स द्वारा नस के माध्यम से दी जाती है। यह दवा उन रोगियों के लिए है जिन्हें गंभीर संक्रमण है या जो मुंह से दवा नहीं ले सकते। यह दवा हर्पीस को पूरी तरह से ठीक नहीं करती, लेकिन संक्रमण को नियंत्रित करने में मदद करती है। इसे डॉक्टर की सलाह के बिना न लें।
साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में इंजेक्शन की जगह पर दर्द, लालिमा या सूजन, मतली, उल्टी, दस्त, सिरदर्द और चक्कर आना शामिल हैं। कुछ लोगों को खुजली, दाने या पित्ती भी हो सकती है। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन इनमें गुर्दे की समस्या, भ्रम, मतिभ्रम, दौरे और एलर्जी की प्रतिक्रिया शामिल हो सकती है। यदि आपको सांस लेने में कठिनाई, चेहरे या गले में सूजन, या गंभीर दाने हों, तो तुरंत डॉक्टर से संपर्क करें।
सुरक्षा सलाह: यह दवा केवल अस्पताल या क्लिनिक में डॉक्टर या नर्स द्वारा दी जानी चाहिए। इसे घर पर स्वयं न लें। अपने डॉक्टर को अपनी सभी स्वास्थ्य समस्याओं और दवाओं के बारे में बताएं। इलाज के दौरान पर्याप्त पानी पिएं ताकि गुर्दे सुरक्षित रहें। यदि आप गर्भवती हैं या स्तनपान करा रही हैं, तो डॉक्टर से सलाह लें। इस दवा को लेते समय शराब न पिएं। किसी भी असामान्य लक्षण को तुरंत डॉक्टर को बताएं।
💊 aciclovin 500mg injection Uses & Benefits
[{"condition":"Herpes simplex virus infections (severe)","description":"Used for severe genital herpes, herpes encephalitis, and neonatal herpes when oral therapy is not possible or effective.","evidence":"Well-established"},{"condition":"Varicella-zoster virus infections (shingles)","description":"Treats shingles in immunocompromised patients or those with severe disease who require intravenous therapy.","evidence":"Well-established"},{"condition":"Chickenpox in immunocompromised patients","description":"Used to treat chickenpox in patients with weakened immune systems who cannot take oral acyclovir.","evidence":"Well-established"},{"condition":"Herpes simplex prophylaxis in immunocompromised patients","description":"Prevents recurrent herpes simplex infections in patients undergoing organ transplant or chemotherapy.","evidence":"Well-established"},{"condition":"Mucocutaneous herpes simplex in immunocompromised patients","description":"Treats severe herpes infections of the skin and mucous membranes in patients with HIV or other immune deficiencies.","evidence":"Well-established"}]
Off-label uses: [{"condition":"Bell's palsy","description":"Sometimes used in combination with corticosteroids for Bell's palsy, though evidence is conflicting.","evidence":"Limited"},{"condition":"Epstein-Barr virus infections","description":"Rarely used for severe EBV infections, but evidence is not well-established.","evidence":"Limited"}]
Primary treatment for: Herpes simplex virus infections (severe)
Also treats: Varicella-zoster virus infections (shingles), Chickenpox in immunocompromised patients, Herpes simplex prophylaxis in immunocompromised patients, Mucocutaneous herpes simplex in immunocompromised patients
📋 Drug Information
| Generic Name(s) | Acyclovir |
| Brand Name | Acivir 400 DT Tablet |
| Manufacturer | Scotmed Care Pvt Ltd |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | ANTI INFECTIVES |
| Action Class | Antiviral (Non-HIV) drugs |
| Route of Administration | Intravenous infusion (into a vein) |
| Storage | Store this medicine at room temperature between 15°C and 25°C (59°F to 77°F). Do not freeze. Keep the vial in its original carton to protect from light. Once reconstituted or diluted, the solution should be used within the time specified by the manufacturer, usually within 12 to 24 hours if stored at room temperature or refrigerated. Follow your hospital's pharmacy guidelines for storage of prepared infusions. |
| Shelf Life | The shelf life of the unopened vial is typically 24 to 36 months from the date of manufacture. Check the expiry date on the packaging. Do not use if the expiry date has passed. Once reconstituted, the solution should be used within the recommended time frame as specified by the manufacturer or hospital pharmacy. |
| WHO Guideline | The World Health Organization recommends acyclovir for the treatment of herpes simplex virus infections, including genital herpes and neonatal herpes. For severe infections, intravenous acyclovir is the preferred treatment. WHO guidelines emphasize early initiation of therapy for best outcomes. However, specific dosing and duration should follow national guidelines and clinical judgment. |
| ICMR Guideline | The Indian Council of Medical Research (ICMR) recognizes acyclovir as a standard treatment for herpes simplex and varicella-zoster infections. ICMR guidelines recommend intravenous acyclovir for severe cases, including encephalitis and disseminated infections. Dose adjustment is advised for patients with renal impairment. Always consult a healthcare provider for appropriate use. |
👨⚕️ Doctor's Practical Tips
Evidence-based practical advice from experienced clinicians
🔍 Is This Medicine Right for Your Symptom?
Educational reference. Always consult a doctor for diagnosis.
🔬 How This Medicine Works (Pharmacology)
Pharmacokinetics
How It Works
This medicine is an antiviral agent that works by inhibiting the replication of herpes simplex virus and varicella-zoster virus. It is a synthetic nucleoside analogue of guanine. Inside the body, it is converted into its active form, acyclovir triphosphate, which competes with the natural nucleotide deoxyguanosine triphosphate for incorporation into viral DNA. This incorporation causes chain termination and prevents further viral DNA synthesis. The medicine has a higher affinity for viral thymidine kinase than for human cellular enzymes, which makes it selectively toxic to virus-infected cells. This selectivity helps reduce harm to normal cells while effectively stopping viral multiplication.
Mechanism Steps
💡 How to Take aciclovin 500mg injection
Strength: This medicine is available as a 500 mg intravenous infusion. It is supplied as a sterile powder for reconstitution or as a ready-to-use solution in a vial or bag. The concentration after reconstitution depends on the volume of diluent used. Always follow the manufacturer's instructions for preparation.
Dosage Information
| Adult Dosage | The dose of this medicine is individualized by a qualified clinician based on the indication, severity of infection, age, weight, and renal function. For severe herpes simplex infections, a common dose is 5 mg/kg to 10 mg/kg given intravenously every 8 hours. For varicella-zoster infections, the dose may be 10 mg/kg every 8 hours. For herpes encephalitis, higher doses such as 10 mg/kg to 15 mg/kg every 8 hours may be used. Treatment duration varies from 7 to 21 days depending on the condition. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. Never self-administer this medicine. |
| Pediatric Dosage | Pediatric dosing is not established from available information. Consult a pediatrician. Intravenous acyclovir is used in children for severe herpes infections, but the dose is calculated based on body weight and renal function. It must be prescribed and administered by a pediatric specialist in a hospital setting. |
| Elderly Dosage | Elderly patients are more likely to have reduced kidney function, which can increase the risk of side effects. The dose of this medicine should be adjusted based on creatinine clearance. Close monitoring of kidney function and neurological status is recommended. Elderly patients may experience more confusion, hallucinations, or drowsiness. Dose must be individualized by a qualified clinician. |
| Renal Impairment | Dose adjustment is required for patients with kidney impairment. For adults with normal renal function, the usual dose is given every 8 hours. For patients with creatinine clearance between 25 and 50 mL/min, the dose may be given every 12 hours. For creatinine clearance between 10 and 25 mL/min, the dose may be given every 24 hours. For creatinine clearance less than 10 mL/min, the dose may be reduced by 50% and given every 24 hours. Patients on hemodialysis should receive a dose after dialysis. Always consult a nephrologist or clinical pharmacist for precise dosing. |
| Hepatic Impairment | No specific dose adjustment is required for hepatic impairment, as acyclovir is primarily eliminated by the kidneys. However, patients with combined hepatic and renal impairment should be monitored closely. Dose must be individualized by a qualified clinician. |
| Maximum Daily Dose | The maximum daily dose of this medicine depends on the indication and patient's renal function. In adults with normal kidney function, doses up to 15 mg/kg every 8 hours (maximum 45 mg/kg/day) have been used for severe infections. However, the exact maximum dose must be determined by a qualified clinician. Do not exceed the prescribed dose. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of aciclovin 500mg injection
✅ Common Side Effects
🚨 Serious Side Effects
⚠️ Rare Side Effects
Consult your doctor if you experience any unusual symptoms.
🔬 Drug Interactions
| Drug | Severity | Effect |
|---|---|---|
| Amphotericin B | Major | |
| Probenecid | Major | |
| Mycophenolate mofetil | Moderate | |
| Cimetidine | Moderate | |
| Theophylline | Moderate | |
| Zidovudine | Minor | |
| NSAIDs (e.g., ibuprofen) | Moderate | |
| Aminoglycosides | Major | |
| Cyclosporine | Moderate | |
| Tacrolimus | Moderate |
🚨 Major Interactions
- Nephrotoxic drugs (e.g., amphotericin B, aminoglycosides, NSAIDs)
- Probenecid
- Mycophenolate mofetil
⚡ Moderate Interactions
- Cimetidine
- Theophylline
🍷 Alcohol Interaction
Alcohol may worsen dizziness and drowsiness caused by this medicine. It is advisable to avoid alcohol during treatment, especially if you are feeling dizzy or unwell. Alcohol can also put extra stress on your kidneys, which may increase the risk of kidney-related side effects. Always consult your doctor about safe alcohol consumption while receiving this medicine.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Hypersensitivity to acyclovir, valacyclovir, or any component of the formulation","Severe renal impairment without dose adjustment","Concurrent use with other nephrotoxic drugs without close monitoring","Dehydration or hypovolemia (should be corrected before administration)"]
⚠️ Warnings & Precautions
["Administer by slow intravenous infusion over at least 1 hour to reduce risk of kidney damage.","Ensure adequate hydration before and during infusion.","Use with caution in patients with pre-existing kidney disease; dose adjustment is required.","Elderly patients are at higher risk of neurological side effects and kidney problems.","Avoid rapid infusion, which can cause kidney injury and neurological symptoms.","Monitor for signs of neurotoxicity, especially in patients with renal impairment.","Do not use in patients with known hypersensitivity to acyclovir or valacyclovir.","Safety and effectiveness in children have been established for certain indications, but dosing must be individualized.","This medicine does not prevent the transmission of herpes virus to others.","Use with caution in patients with underlying neurological disorders."]
🤱 Lactation Safety
Acyclovir is excreted in breast milk in small amounts. It is generally considered safe during breastfeeding, but because this medicine is given intravenously, it is usually used for serious infections that may require temporary interruption of breastfeeding. Consult your doctor to discuss the risks and benefits. If you are breastfeeding and receiving this medicine, monitor your baby for any signs of diarrhea or rash.
💊 Overdose Management
Overdose with intravenous acyclovir can lead to increased side effects, particularly kidney damage and neurological symptoms such as confusion, hallucinations, and seizures. There is no specific antidote. Treatment is supportive and symptomatic. Hemodialysis may be considered to remove acyclovir from the blood in severe cases, especially in patients with kidney failure. If overdose is suspected, seek immediate medical attention. Monitor kidney function, neurological status, and vital signs closely.
⏰ Missed Dose
This medicine is given by a healthcare professional in a hospital or clinic setting, so missed doses are unlikely. If you miss an appointment for your infusion, contact your doctor or clinic as soon as possible to reschedule. Do not attempt to self-administer this medicine. Your healthcare provider will determine the best time for your next dose based on your treatment schedule.
Additional Safety Advice
This medicine must only be given by a healthcare professional in a hospital or clinic setting. Do not attempt to administer it yourself. Inform your doctor if you have kidney disease, liver disease, or any other medical conditions before receiving this medicine. Drink plenty of fluids during treatment to help protect your kidneys, unless your doctor advises otherwise. Tell your doctor about all other medicines you are taking, especially those that can affect your kidneys or immune system. Avoid close contact with people who have weakened immune systems, as this medicine does not prevent the spread of herpes virus. Do not share personal items such as towels, lip balm, or utensils while you have active sores. If you are pregnant or breastfeeding, discuss the risks and benefits with your doctor. Do not receive any live vaccines without consulting your doctor while on this medicine. Report any new or worsening symptoms to your healthcare provider immediately.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Elderly patients are at higher risk of kidney problems and neurological side effects from this medicine. Dose adjustment based on creatinine clearance is essential. Monitor kidney function and mental status closely. Encourage adequate hydration. Report any confusion, hallucinations, or decreased urine output to the doctor immediately.
🤰 Pregnancy Planning (TTC)
If you are planning to become pregnant, discuss with your doctor before starting this medicine. Acyclovir is generally considered safe in pregnancy, but the decision to use it should be based on the severity of the infection and the potential risks. If you become pregnant while on this medicine, inform your doctor immediately.
🏥 Post-Surgery Considerations
If you have recently had surgery, inform your surgeon and anesthesiologist that you are receiving this medicine. It may interact with other medications used during surgery. Your kidney function should be monitored closely after surgery, especially if you are dehydrated or have other risk factors.
🦷 Dental Procedures
Inform your dentist that you are receiving this medicine before any dental procedure. It is generally safe, but your dentist may take precautions if you have kidney problems or are taking other medications. Maintain good oral hygiene to prevent secondary infections.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
While receiving this medicine, you may feel tired or dizzy. Avoid strenuous exercise until you feel fully recovered. Light activities like walking are fine if you feel up to it. If you experience dizziness or weakness, rest and avoid driving or operating machinery. Consult your doctor before resuming your regular exercise routine.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
This medicine is given in a hospital or clinic, so you will need to take time off work for treatment. You may feel tired, dizzy, or nauseous during treatment, so avoid driving or operating heavy machinery. Most people can return to normal activities after completing the course, but recovery time varies. Discuss your work schedule with your doctor to plan your leave.
🛑 When to Stop This Medicine
Do not stop this medicine without consulting your doctor. The full course must be completed to ensure the infection is fully treated and to prevent resistance. If you experience severe side effects, your doctor may decide to stop or change the treatment. Always follow your healthcare provider's instructions.
📅 Long-Term Use Effects
Long-term use of intravenous acyclovir is uncommon and typically limited to specific clinical scenarios. Prolonged use may increase the risk of kidney damage and neurological side effects. Regular monitoring of kidney function and blood counts is recommended. Viral resistance can develop with prolonged or repeated courses. If you require long-term therapy, your doctor will monitor you closely and adjust the dose as needed. Always discuss the risks and benefits with your healthcare provider.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
For less severe infections, oral antivirals may be used instead of intravenous therapy.
Evidence: Well-establishedFor mild cold sores, topical acyclovir cream may be sufficient.
Evidence: Well-establishedAnalgesics and nerve pain medications can help manage pain from shingles.
Evidence: Well-established💉 Vaccination Considerations
💉 If You're Getting Vaccinated
Live vaccines should be avoided while receiving this medicine, as it may affect your immune response. Inactivated vaccines are generally safe, but consult your doctor before receiving any vaccine during treatment. If you are due for a vaccine, inform your healthcare provider that you are receiving acyclovir.
📦 Storage Guide
✅ DO
Store at room temperature (15-25°C)
❌ DON'T
Do not freeze the vial
✅ DO
Keep in original carton to protect from light
❌ DON'T
Do not use if the solution is discolored or contains particles
✅ DO
Follow hospital pharmacy guidelines for prepared infusions
❌ DON'T
Do not store prepared infusion for longer than recommended
✈️ Traveling with This Medicine
This medicine is given in a hospital or clinic setting, so travel is not applicable for self-administration. If you are traveling and need to continue treatment, arrange for a hospital or clinic at your destination that can administer intravenous infusions. Carry a copy of your prescription and medical records. Ensure the medicine is stored properly during transport if you are carrying it. Check with your doctor about the availability of acyclovir at your destination. Always inform your healthcare provider about your travel plans.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: You may start feeling better within 24 to 48 hours after starting treatment, but it may take several days for full recovery. It is important to complete the full course as prescribed.
A: No, this medicine must be given by a healthcare professional in a hospital or clinic setting. It requires intravenous administration and monitoring.
A: Serious side effects include kidney problems (decreased urine output, swelling), neurological symptoms (confusion, seizures), and severe allergic reactions (difficulty breathing, swelling of face or throat). Seek immediate medical help if you experience any of these.
A: Acyclovir is classified as Pregnancy Category B and is generally considered safe when used under medical supervision. However, it should only be used if clearly needed. Consult your obstetrician.
A: It is best to avoid alcohol during treatment as it can worsen dizziness and put extra stress on your kidneys.
🤔 Common Patient Concerns
🔄 Substitutes for aciclovin 500mg injection
View AllAlternative brands with exact same active ingredient:
-
valavir 500mg tabletCipla Ltd ₹105.94 81.6% CHEAPER
-
valcet 500mg tabletKivi Labs Ltd ₹112.50 80.5% CHEAPER
-
valamac 500mg tabletMacleods Pharmaceuticals Pvt Ltd ₹126.56 78% CHEAPER
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valkon 500mg tabletEskon Pharma ₹126.56 78% CHEAPER
-
valcoveer 500mg tabletKnoll Pharmaceuticals Ltd ₹126.56 78% CHEAPER
Medical Note: Always consult your doctor before switching medications.
🛑 Myths vs. Facts
- Myth: Acivir 500 infusion can cure herpes permanently.
Fact: This medicine treats the infection and reduces symptoms, but it does not cure the virus. Herpes can remain dormant in the body and may reactivate later. - Myth: You can stop the infusion as soon as you feel better.
Fact: You must complete the full course as prescribed by your doctor to prevent the infection from worsening or becoming resistant. - Myth: Acivir 500 infusion is safe for everyone.
Fact: It is not safe for people with severe kidney problems or those allergic to acyclovir. Dose adjustment is needed for kidney disease. - Myth: You can drink alcohol while receiving this medicine.
Fact: Alcohol can worsen dizziness and put extra stress on your kidneys. It is best to avoid alcohol during treatment.
🔄 Alternative Options
Generic Alternatives
- Acyclovir 500 mg infusion
Brand Alternatives
- Acivir 500 infusion