Clovirax 800mg Tablet DT

Acyclovir (800mg)

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Clovirax 800mg Tablet DT is an antiviral medicine. It helps in treating viral infections like herpes labialis, herpes simplex, shingles, genital herpes infection, and chickenpox. It prevents the multiplication of virus in human cells and therefore helps in clearing the infection.

Written By Dr. Sakshi Jain, MS, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 25 Nov 2025 | 03:05 PM (IST)

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Clovirax 800mg Tablet DT

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Acivir 800 DT Tablet

strip of 10 tablet dt

Acyclovir (800mg)

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General Information

Contains

Acyclovir (800mg)

Marketer

Maneesh Pharmaceuticals Ltd

Storage

Store below 30°C

The content is shown in English

Product introduction

Clovirax 800mg Tablet DT should be taken in the dose and duration as advised by your doctor. Do not skip any doses and finish the full course of treatment even if you feel better. Dissolve it in a glass of water before taking it. It may be taken with or without food, but it is better to take it at a fixed time. If you miss a dose, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular schedule. Do not double the dose. You should drink plenty of water while on treatment with this medicine, as it helps to prevent dehydration and kidney damage.

Some side effects of this medicine include headache, dizziness, vomiting, nausea, fatigue, and fever. Inform your doctor if these side effects do not resolve or persist for a longer duration.

Clovirax 800mg Tablet DT should be used with caution in people with kidney problems, dehydration, or weakened immune systems. It is contraindicated in those allergic to this medicine or similar medicines. Drink plenty of water during treatment to protect kidney function. Please consult your doctor if you are pregnant, planning to conceive, or breastfeeding.

Uses of Clovirax Tablet DT

Benefits of Clovirax Tablet DT

Genital herpes infection
Genital herpes is a viral infection that causes painful blisters or sores in the genital area. Clovirax 800mg Tablet DT helps reduce the severity and duration of these outbreaks by controlling the growth of the virus. It also helps relieve pain, itching, and discomfort while promoting faster healing.

Chickenpox
Chickenpox causes itchy blisters, fever, and tiredness, mainly in children. Clovirax 800mg Tablet DT helps control the spread of the virus, reduces the number of blisters, and speeds up recovery. It also lowers the risk of complications, helping the child feel better sooner.

Herpes Simplex Virus Infections
Herpes simplex infections can cause cold sores, blisters, or painful skin lesions. Clovirax 800mg Tablet DT works by stopping the virus from multiplying, helping reduce symptoms like pain and itching. It also shortens healing time and prevents new sores from forming.

Herpes labialis
Herpes labialis, commonly known as cold sores, causes painful blisters around the lips and mouth. Clovirax 800mg Tablet DT helps stop the virus from multiplying, which reduces pain, burning, and itching. It also speeds up healing and helps prevent the formation of new sores.

Shingles
Shingles is a viral infection that causes a painful rash. Clovirax 800mg Tablet DT can shorten the length and severity of shingles. It is most effective if you start taking it as soon as possible after the rash appears. Keeping the immune system healthy is the best way to prevent shingles. Maintaining good hygiene is another way of preventing shingles.

Side effects of Clovirax Tablet DT

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of Clovirax

Vomiting
Rash
Nausea
Dry skin
Burning sensation
General discomfort
Itching
Urticaria
Inflammation of vein
Dry lips
Skin peeling

How to use Clovirax Tablet DT

Take this medicine in the dose and duration as advised by your doctor. Dissolve it in a glass of water before taking it. Clovirax 800mg Tablet DT may be taken with or without food.

How Clovirax Tablet DT works

Clovirax 800mg Tablet DT is an antiviral medication. It prevents the multiplication of virus in human cells. This stops the virus from producing new viruses and clears up your infection.

All substitutes for Clovirax 800mg Tablet DT

For information purposes only. Consult a doctor before taking any medicine.

Quick tips

Do not skip any doses and finish the full course of treatment even if you feel better.
Drink plenty of water while on treatment with this medicine. This helps to prevent dehydration and kidney damage.
If you have genital herpes, use barrier methods (condoms) for contraception and avoid sexual contact while the sores are present.
Inform your doctor if you are pregnant or planning to conceive or breastfeeding.

Safety advice

Alcohol

CONSULT YOUR DOCTOR

It is not known whether it is safe to consume alcohol with Clovirax 800mg Tablet DT. Please consult your doctor.

Pregnancy

CONSULT YOUR DOCTOR

Clovirax 800mg Tablet DT is not recommended during pregnancy as there is positive evidence of fetal risk based on animal studies. However, it may still be prescribed by a doctor in situations where the benefits outweigh the risks.

Breast feeding

CONSULT YOUR DOCTOR

Clovirax 800mg Tablet DT may be unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby. It should be used only if the expected benefit outweighs the potential risk. Please consult your doctor.

Driving

UNSAFE

Clovirax 800mg Tablet DT may decrease alertness, affect your vision, or make you feel sleepy and dizzy. Do not drive if these symptoms occur.

Kidney

CAUTION

Clovirax 800mg Tablet DT should be used with caution in patients with kidney disease. Dose adjustment may be needed.
It is advisable to drink plenty of water while you are taking this medicine.

Liver

CAUTION

Clovirax 800mg Tablet DT should be used with caution in patients with liver disease. Dose adjustment may be needed.

Interaction with drugs

Taking Clovirax with any of the following medicines can modify the effect of either of them and cause some undesirable side effects

Severe

Tenofovir disoproxil fumarate (Oral Route)

Do not consume Tenofovir disoproxil fumarate with Acyclovir. If concurrent use is essential, your doctor may monitor your kidney function closely.

Severe

Tacrolimus (Oral Route)

If concurrent use is essential, your doctor may monitor your tacrolimus levels, potassium levels and kidney function closely. They may adjust the doses as per the observations.

Severe

Ciclosporin (Oral Route)

Caution is advised when taking Ciclosporin with Acyclovir. Your doctor may closely monitor the effects of Acyclovir if used concurrently with Ciclosporin and adjust the dose if needed. Acyclovir may raise blood levels of Ciclosporin.

Severe

Ciclosporin (Injection Route)

Moderate

Ceftriaxone (Injection Route)

Talk to your doctor if you notice any unusual symptoms.Doctor may monitor your kidney function.

Frequently asked questions

Will I get cured after taking Clovirax 800mg Tablet DT for shingles?

Clovirax 800mg Tablet DT is an antiviral medicine effective against herpes simplex and varicella zoster viruses. It does not cure infections caused by these viruses but helps to minimize the symptoms and shorten the duration of infection. It does not remove the viruses from the body but prevents the viruses from dividing and spreading.

Does Clovirax 800mg Tablet DT prevent transmission of infection to others?

No, you can infect other people, even while you are being treated with Clovirax 800mg Tablet DT. Herpes infections are contagious, so avoid letting infected areas come into contact with other people. Avoid touching your eyes after touching an infected area. Wash your hands frequently to prevent transmitting the infection to others. You should practice safe sex by using condoms. You should not have sex if you have genital sores or blisters.

What are the serious side effects of Clovirax 800mg Tablet DT?

Serious side effects are rare, but if you experience them, you should seek medical advice right away. These rare side effects include hives, blistering or peeling rash, yellow skin or eyes, unusual bruising or bleeding, loss of consciousness, fits, difficulty in breathing, hallucinations and swelling of the face, tongue, lips or throat.

Do elderly patients need to be more careful while taking Clovirax 800mg Tablet DT?

Older adults (over age 65 years) tend to experience more side effects when taking Clovirax 800mg Tablet DT. The reason being, their kidneys do not flush the drug out of their system as quickly as a younger person’s kidneys would do. Elderly patients should drink plenty of water while taking Clovirax 800mg Tablet DT, and their kidney function should be monitored. These patients should be given a lower dose and should be monitored for neurological problems.

What can happen if somebody takes more than the recommended dose of Clovirax 800mg Tablet DT accidentally?

Accidental, repeated overdoses of oral Clovirax 800mg Tablet DT over several days have resulted in nausea, vomiting, confusion and headache. Consult your doctor in case of overdose.

Can I get resistant to Clovirax 800mg Tablet DT treatment?

Patients with advanced HIV disease or patients with an impaired immunity have reported resistance to Clovirax 800mg Tablet DT. If you are not responding to Clovirax 800mg Tablet DT, the possibility of drug resistance should be checked.

Is hair loss caused due to Clovirax 800mg Tablet DT permanent?

Hair loss is an uncommon side effect of Clovirax 800mg Tablet DT. It stops when the medicine is discontinued.

Will I get cured after taking Clovirax 800mg Tablet DT for shingles?

Does Clovirax 800mg Tablet DT prevent transmission of infection to others?

What are the serious side effects of Clovirax 800mg Tablet DT?

Do elderly patients need to be more careful while taking Clovirax 800mg Tablet DT?

What can happen if somebody takes more than the recommended dose of Clovirax 800mg Tablet DT accidentally?

Accidental, repeated overdoses of oral Clovirax 800mg Tablet DT over several days have resulted in nausea, vomiting, confusion and headache. Consult your doctor in case of overdose.

Can I get resistant to Clovirax 800mg Tablet DT treatment?

Is hair loss caused due to Clovirax 800mg Tablet DT permanent?

Hair loss is an uncommon side effect of Clovirax 800mg Tablet DT. It stops when the medicine is discontinued.

Fact Box

Chemical Class

Hypoxanthines

Habit Forming

Therapeutic Class

ANTI INFECTIVES

Action Class

Antiviral Agents (Non-HIV)

Related lab tests

Herpes Simplex Virus 1 DNA PCR

Herpes Simplex Virus 1 IgG

Herpes Simplex Virus 2 DNA PCR

Herpes Simplex Virus 2 IgG

Herpes Simplex Virus 2 IgM

Varicella Zoster IgG

Varicella Zoster IgM

References

Acosta EP, Flexner C. Antiviral Agents (Nonretroviral). In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. New York, New York: McGraw-Hill Medical; 2011. pp. 1594-1600.
Safrin S. Antiviral Agents. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. pp. 846-47.
Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 18-22.
Aciclovir. Hayes, UK: Ranbaxy (UK) Limited a Sun Pharmaceutical Company; 2007 [revised 15 Aug. 2018]. [Accessed 29 Jan. 2019] (online) Available from:
Chaves RG, Lamounier JA. Breastfeeding and maternal medications. J Pediatr (Rio J). 2004;80(5 Suppl):S189-98. [Accessed 29 Mar. 2019] (online) Available from:
Acyclovir [Prescribing Information]. Research Triangle Park, NC: GlaxoSmithKline; 2005. [Accessed 25 Jul. 2024] (online) Available from:
Acyclovir [Prescribing Information]. München, Germany: DENK PHARMA GmbH & Co. KG; 2019. [Accessed 21 Oct. 2025] (online). Available from:

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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Maneesh Pharmaceuticals Ltd
Address: Plot No. 29-33, Ancillary Industrial Plots, Govandi, Mumbai - 400 043.

Vendor Details

Country of origin: India

Lab tests offered by us

Why we need a prescription?

Clovirax 800mg Tablet DT

Save more with additional offers

General Information

Contains

Marketer

Storage

Product introduction

Uses of Clovirax Tablet DT

Benefits of Clovirax Tablet DT

Side effects of Clovirax Tablet DT

How to use Clovirax Tablet DT

How Clovirax Tablet DT works

All substitutes for Clovirax 800mg Tablet DT

Ocuvir 800 DT Tablet

Herpex 800 DT Tablet

Acivir 800 DT Tablet

Herer 800mg Tablet DT

Virovib 800mg Tablet DT

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Tenofovir disoproxil fumarate (Oral Route)

Tacrolimus (Oral Route)

Ciclosporin (Oral Route)

Ciclosporin (Injection Route)

Ceftriaxone (Injection Route)

Frequently asked questions

Will I get cured after taking Clovirax 800mg Tablet DT for shingles?

Does Clovirax 800mg Tablet DT prevent transmission of infection to others?

What are the serious side effects of Clovirax 800mg Tablet DT?

Do elderly patients need to be more careful while taking Clovirax 800mg Tablet DT?

What can happen if somebody takes more than the recommended dose of Clovirax 800mg Tablet DT accidentally?

Can I get resistant to Clovirax 800mg Tablet DT treatment?

Is hair loss caused due to Clovirax 800mg Tablet DT permanent?

Will I get cured after taking Clovirax 800mg Tablet DT for shingles?

Does Clovirax 800mg Tablet DT prevent transmission of infection to others?

What are the serious side effects of Clovirax 800mg Tablet DT?

Do elderly patients need to be more careful while taking Clovirax 800mg Tablet DT?

What can happen if somebody takes more than the recommended dose of Clovirax 800mg Tablet DT accidentally?

Can I get resistant to Clovirax 800mg Tablet DT treatment?

Is hair loss caused due to Clovirax 800mg Tablet DT permanent?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

Related lab tests

Herpes Simplex Virus 1 DNA PCR

Herpes Simplex Virus 1 IgG

Herpes Simplex Virus 2 DNA PCR

Herpes Simplex Virus 2 IgG

Herpes Simplex Virus 2 IgM

Varicella Zoster IgG

Varicella Zoster IgM

References

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

Lab tests offered by us

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