Acivir 800 Mg (Acyclovir)

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Pack SizePriceUnit PriceQuantity 
30 Tablet/s$87.93$2.93 / tablet
60 Tablet/s$141.57$2.36 / tablet
90 Tablet/s$187.70$2.09 / tablet
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Estimated delivery: October 6, 2026 – October 11, 2026
Written by Dr Ambrose Chan, MD, MD Medically reviewed by Dr. Sabrina Castillon, MD, MD
Last updated on September 11, 2026
Description

About Acivir 800 Mg (Acyclovir)

Medicine information

Active ingredient
Acyclovir
Delivery time
10-14 business days after dispatch for the United States, United Kingdom, Canada, and Australia; 12-18 business days for Europe; 14-21 business days for other served destinations. These are estimates and customs or carrier delays may extend transit.
Indication
Treatment of herpes zoster (shingles), initial and recurrent genital herpes, and chickenpox (varicella).
Manufacturer
Cipla Ltd.
Packaging
Strip of 5 dispersible tablets
Strength
800 mg
Dosage form
Dispersible tablet (DT)
Route
Oral

Medicine overview

Acivir 800 Mg DT contains 800 mg of acyclovir, an antiviral medicine active against herpes viruses. It is an oral dispersible tablet marketed by Cipla Ltd. The medicine is used for infections including shingles, chickenpox, and certain genital herpes episodes. Acyclovir does not eliminate herpes viruses from the body. Instead, it limits viral multiplication, which can reduce the severity and duration of an active infection when treatment is started at the appropriate time.

What it is used for

Acivir 800 Mg is used for herpes-virus infections where oral acyclovir treatment is appropriate. Established uses of oral acyclovir include acute herpes zoster (shingles), chickenpox, and the treatment or management of genital herpes episodes. The appropriate treatment regimen differs according to the infection, kidney function, age, and other clinical factors, so the 800 mg strength should only be used according to the prescribed instructions.

How it works

Acyclovir is a synthetic nucleoside analogue, a type of antiviral medicine. In virus-infected cells it is converted to its active form and interferes with viral DNA polymerase, an enzyme the virus needs to copy its genetic material. This interrupts viral DNA replication and limits production of new herpes-virus particles. Acyclovir has activity against herpes simplex virus types 1 and 2 and varicella-zoster virus, the virus responsible for chickenpox and shingles.

How it is taken

Acivir 800 Mg DT is taken by mouth according to the prescribed regimen. As a dispersible tablet, it can be dissolved in water before administration. Acyclovir can generally be taken with or without food. Maintain adequate fluid intake during oral acyclovir treatment, particularly when kidney problems or dehydration are a concern. Treatment schedules vary substantially by infection and kidney function; do not change the prescribed dose, frequency, or treatment duration without medical advice.

Important warnings

Do not use acyclovir if you have had a clinically significant hypersensitivity reaction to acyclovir, valacyclovir, or an ingredient in the formulation. Kidney failure has occurred during acyclovir treatment, so adequate hydration is important and dose adjustment may be required in renal impairment. Extra caution is needed with medicines that can damage the kidneys. Serious neurological effects such as confusion, hallucinations, seizures, reduced consciousness, or coma have been reported, particularly in older people and patients with impaired kidney function. Rare serious skin reactions and TTP/HUS, a potentially life-threatening blood disorder reported particularly in immunocompromised patients, require urgent medical assessment. Genital herpes can still be transmitted during acyclovir treatment.

Side effects and monitoring

Common or reported effects of oral acyclovir include nausea, vomiting, diarrhea, headache, dizziness, gastrointestinal discomfort, and malaise; the pattern varies with the condition and treatment regimen. Less common but serious reactions include kidney injury, severe allergic reactions, serious skin reactions, hepatitis or jaundice, blood-cell abnormalities, seizures, confusion, hallucinations, encephalopathy, and other neurological effects. Seek urgent medical attention for severe rash or blistering, facial or throat swelling, difficulty breathing, markedly reduced urination, severe confusion, seizures, or loss of consciousness. Kidney function may need monitoring in patients with renal impairment, older adults, dehydrated patients, or those receiving potentially nephrotoxic medicines.

Pregnancy

Acyclovir may be used during pregnancy when a healthcare professional considers the expected benefit appropriate relative to potential risk. Available pregnancy experience has not established an increased overall birth-defect rate, but the evidence cannot exclude uncommon risks. Tell the prescriber if you are pregnant or planning pregnancy.

Breastfeeding

Acyclovir passes into human breast milk. Oral treatment should therefore be discussed with a healthcare professional while breastfeeding. Available clinical guidance generally permits acyclovir when appropriate, but individual circumstances and the infant should be considered.

Food, drink and interactions

No specific interaction between alcohol and acyclovir is established in standard patient guidance. Alcohol is not specifically prohibited, but maintaining adequate hydration is important while taking acyclovir tablets.

Food and drink

Acyclovir tablets can generally be taken with or without food. Maintain adequate fluid intake during treatment because dehydration can increase concern about kidney-related adverse effects.

Storage

Store below 25°C and protect the medicine from inappropriate heat and moisture. Keep it out of the reach of children.

Frequently asked questions

Why is acyclovir 800 mg prescribed several times a day for shingles?

Acyclovir leaves the bloodstream relatively quickly, so shingles treatment can require several doses across the day. Follow the exact schedule prescribed for you because kidney function and other clinical factors can require a different regimen.

Should I start Acivir as soon as I notice shingles?

Treatment should generally begin as soon as possible after shingles is diagnosed. Clinical evidence for oral acyclovir is strongest when treatment starts early after the rash appears.

Do I need to drink extra water while taking acyclovir?

Adequate hydration is important during oral acyclovir treatment. This is particularly relevant if you have kidney problems, are older, or are at risk of dehydration.

Can I take Acivir 800 Mg with food?

Yes. Oral acyclovir can generally be taken with or without food, so food is not required for it to work.

Does acyclovir cure herpes permanently?

No. Acyclovir suppresses replication of the herpes virus during treatment but does not remove latent herpes virus from the body. Genital herpes can therefore recur, and transmission can still occur.

What should I do if the 800 mg dose seems too high or too frequent?

Do not change it yourself. Acyclovir schedules differ substantially between shingles, chickenpox, genital herpes, and patients with reduced kidney function, so confirm any concern with the prescriber or pharmacist.

Can Acivir 800 Mg be used if I have kidney problems?

It may be used in some patients, but dose or dosing-interval adjustment can be necessary. Kidney impairment increases the risk of acyclovir accumulation and kidney or neurological adverse effects.

Can Cheap Generic Med ship Acivir 800 Mg to the United States?

Cheap Generic Med serves the United States under its international shipping model. Delivery is typically estimated at 10-14 business days after dispatch, although customs or carrier delays can extend transit; prescription and personal-import requirements may also apply.

Will my Acivir order have tracking?

Tracked international shipping is used under the standard Cheap Generic Med fulfilment model. A tracking number should be provided after dispatch, although carrier systems can take 24-72 hours to begin showing movement.

Sources

  1. www.accessdata.fda.gov
  2. www.dailymed.nlm.nih.gov
  3. www.nhs.uk
  4. medlineplus.gov
  5. pharma-dept.gov.in

Medical information notice: This information does not replace advice from a qualified healthcare professional. Use prescription medicine only as directed by the prescriber and the approved product information.

Additional information
PackagingQty
Delivery Time6 To 15 days
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