Reviewed by GoDavaii Editorial & Safety TeamSources CDSCO / WHO / NCBI
Rx RequiredInjectionAI-Verified Info
Astvir 500mg Injection
Composition: Acyclovir 500mg
Manufacturer: Asterisk Laboratories India Pvt Ltd
Ask GoDavaii AI about this medicine
What is Astvir 500mg Injection used for, what should it not be taken with, and who should avoid it? It contains Acyclovir 500mg.
Injection
Quick Answer
Astvir 500mg Injection is an injection-form medicine used for herpes simplex (cold sores, genital), shingles, chickenpox in adults. How it works: antiviral that selectively inhibits viral DNA polymerase.
About Astvir 500mg Injection
Astvir 500mg Injection is an injection-form medicine used for herpes simplex (cold sores, genital), shingles, chickenpox in adults. How it works: antiviral that selectively inhibits viral DNA polymerase. Falling under the antiviral medicines category, it is commonly prescribed in India for health management.
The active ingredient in Astvir 500mg Injection is Acyclovir 500mg. Active ingredients are the components in a medicine that produce its intended therapeutic effect, and the same active ingredient may appear in many brand names across India at different price points.
Astvir 500mg Injection is manufactured and marketed in India by Asterisk Laboratories India Pvt Ltd. Like every medicine sold in India, it is regulated by the Central Drugs Standard Control Organisation (CDSCO) and must meet the quality standards specified in the Indian Pharmacopoeia.
Astvir 500mg Injection is supplied in a pack of 1 units. Our medicine dataset lists Astvir 500mg Injection at about ₹470. Prices vary between pharmacies and cities; confirm at your pharmacy. As an injection-form medicine, Astvir 500mg Injection should be stored, handled and used following the form-specific guidance below.
Astvir 500mg Injection is a prescription medicine in India. A valid prescription from a qualified medical professional is required to purchase it, and the medicine should only be used under medical supervision so that the dose, duration and monitoring are appropriate for the specific condition being treated.
Always use Astvir 500mg Injection exactly as advised by a qualified medical professional. Do not exceed the recommended dose, do not extend the course beyond what is prescribed, and do not share the medicine with family members even if their symptoms appear similar.
Uses & Benefits
Herpes simplex (cold sores
Genital)
Shingles
Chickenpox in adults
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How to Use
To be administered by a healthcare professional only. Do not self-inject unless trained. Follow the prescribed route of administration.
Doctor first: Always confirm dosage with a qualified doctor based on your weight, age, and conditions.
Side Effects
Nausea
Headache
Dizziness
Kidney issues with high IV doses
Not a complete list. Consult a qualified doctor if you experience any unusual symptoms.
Which of these might YOU face?Safety Advice
- Start within 72 hours of rash onset for best effect. Stay well-hydrated. Reduce dose in kidney disease. Suppressive daily dose available for frequent recurrences.
- Tell every clinician you see about every medicine you take - including Astvir 500mg Injection, supplements, ayurvedic preparations and OTC products - so that drug interactions can be checked. GoDavaii's AI cross-checks against a 93,000+ pair interaction database whenever you add a new medicine.
- Use as directed by a qualified medical professional.
- In pregnancy or while breastfeeding, do not start Astvir 500mg Injection on your own. The decision should be made by a qualified medical professional based on the specific trimester, the condition being treated, and the safety category of the active ingredient.
- Keep Astvir 500mg Injection out of reach of children. Accidental ingestion of even one extra dose can be dangerous in small children.
- If you miss a dose, take it as soon as you remember unless it is almost time for the next dose - in that case, skip the missed dose and continue with the regular schedule. Never double up to make up for a missed dose.
Safe for you?
This is general info. Whether it's safe for YOU is a different question.
Whether Astvir is safe alongside your other medicines, health conditions and allergies - GoDavaii Health AI checks it personally in 1 second, in your language. Free.
Storage
Store as per label instructions. Some injections require refrigeration. Check expiry before use.
AI-Verified · Cross-checked against 93,000+ interaction database
Not medical advice
This is educational information about Astvir 500mg Injection. For diagnosis, prescriptions, or personal advice, consult a qualified doctor. For emergencies, call 112.
Frequently Asked Questions
Astvir 500mg Injection is primarily used for herpes simplex (cold sores, genital), shingles, chickenpox in adults. How it works: antiviral that selectively inhibits viral DNA polymerase. Always check with a qualified medical professional or with GoDavaii's AI before starting this medication so that it is the right fit for your condition, age and other medicines.
Common side effects of Astvir 500mg Injection may include nausea, headache, dizziness, kidney issues with high IV doses. Most side effects are mild and settle on their own. If you experience severe, persistent or unusual side effects, stop the medicine and seek medical advice. Start within 72 hours of rash onset for best effect. Stay well-hydrated. Reduce dose in kidney disease. Suppressive daily dose available for frequent recurrences.
Our medicine dataset lists Astvir 500mg Injection at about ₹470 for a pack of 1 units. Prices vary between pharmacies and cities, so confirm the current price at your pharmacy. The GoDavaii app can show medicines with the same composition.
No. Astvir 500mg Injection is a prescription medicine and requires a valid prescription from a registered medical professional in India. This safeguard exists because the dose, duration and monitoring need to be matched to your specific condition - self-medication can cause harm.
To be administered by a healthcare professional only. Do not self-inject unless trained. Follow the prescribed route of administration. The exact dose and frequency for Astvir 500mg Injection should be set by a qualified medical professional based on your age, weight, condition and other medicines you take. Do not change the dose on your own.
Do not start Astvir 500mg Injection on your own during pregnancy or while breastfeeding. The decision depends on the specific trimester, the condition being treated and the safety category of the active ingredient (Acyclovir 500mg). A qualified medical professional should weigh the benefits against the risks for your specific situation. GoDavaii's pregnancy-safety checker can give you an instant first-pass view.
If you miss a dose of Astvir 500mg Injection, take it as soon as you remember unless it is almost time for your next dose - in that case, skip the missed dose and resume the regular schedule. Never take a double dose to make up. If you miss several doses, get in touch with the prescribing clinician for advice on whether to restart from the beginning or continue.
Yes, Astvir 500mg Injection (which contains Acyclovir 500mg) can interact with other medicines. Common interactions for this class include antacids, blood thinners, blood pressure medicines and certain antibiotics. Always tell your clinician about every medicine, supplement and herbal preparation you take. GoDavaii's drug interaction checker covers 93,000+ verified pairs and is free to use.
Yes - the same active ingredient (Acyclovir 500mg) is available in many brand and unbranded generic forms in India, often at significantly different prices for clinically equivalent quality. GoDavaii's generic alternatives feature shows Astvir 500mg Injection's equivalents side-by-side with current prices.
Stop Astvir 500mg Injection and get medical help right away if you develop any of the following: difficulty breathing, swelling of the face/lips/tongue, severe rash with blistering, sudden chest pain, fainting, persistent vomiting, severe abdominal pain, dark urine, yellowing of the eyes or skin, or any symptom that feels severe or unusual. These are red flags that need in-person evaluation, not self-treatment.
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