What is Acyclovir?

Acyclovir is an antiviral drug which is generally used to treat cold sores (herpes simplex infections), herpes zoster, chickenpox and genital herpes.

Manufactured By – Cipla Ltd.

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How does Acyclovir work?

Acyclovir inhibits replication of herpes viral DNA and works by lowering the ability of the herpes virus to multiply in the body. This treats the symptoms of infection and speed the healing of sores or blisters but this drug doesn’t cure herpes infections.

Acyclovir Price in India

SpecificsAcyclovir Price
Strip of 10 TabletsRs 14.99

Also Read: Amikacin Price | Clotrimazole Price

How to Take Acyclovir?

Acyclovir usually comes in the form of a tablets, capsules & suspensions (which has to taken by mouth, and topical forms. Every possible formulation might not be listed here.

Acyclovir tablets / suspensions are usually taken by mouth with a glass of water as directed by your doctor, usually 2-5 times daily with or without food. For best results, Acyclovir must be taken at evenly spaced times.

Shake the suspension liquid well before each use and always use a measuring cup to ingest the correct dosage of medicine.

Acyclovir skin cream – Clean and dry the area on which Acyclovir has to be used. Hands should be properly washed before and after applying Acyclovir. The area treated with Acyclovir should not be washed immediately after cream application.

The usage of Acyclovir must be continued until the prescribed dosage is finished, even if your symptoms disappear.

It is always advised for the user to read the Patient Information Leaflet provided by the pharmacist and further queries must be solved with your doctor or pharmacist.

Common Dosage for Acyclovir?

The drug dosage and form is decided by the physician based upon:

age and body weight of the patient

health status/medical condition of the patient

disease severity

reaction to the first dose

history of allergy/drug reactions

Drink plenty of fluids while taking Acyclovir unless you have been directed by your doctor otherwise.

Also Read: Carbamazepine Dosage

When to Avoid Acyclovir?

Do not use Acyclovir

if you are allergic to acyclovir,

if you are allergic to valacyclovir,

if you are allergic to any of the ingredients in acyclovir

Always inform you doctor

if you are dehydrated from a recent illness or activity,

if you have or have ever had problems with your immune system;

if you are suffering from / have a history of human immunodeficiency virus infection or acquired immunodeficiency syndrome (AIDS)

If you are suffering from a kidney disease.

Side-effects of Acyclovir?

  • Nausea
  • vomiting
  • diarrhea
  • dizziness
  • tiredness
  • agitation
  • pain in joints
  • hair loss
  • changes in vision
Also Read: Cephalexin Side Effect | Clopidogrel Side Effect

Other serious side-effects include

  • hallucinations
  • confusion
  • dizziness
  • loss of consciousness
  • weakness
  • fatigue
  • loss of appetite
  • sore throat
  • fast heartbeat
  • pale skin
  • difficulty sleeping
  • fever, sore throat, chills, cough, and other signs of infection
  • unusual bruising or bleeding
  • blood in the urine
  • stomach pain or cramps
  • bloody diarrhea
  • constipation
  • decreased urination
  • headache
  • aggressive behaviour
  • difficulty speaking
  • numbness, burning, or tingling in the arms or legs
  • pain in joints
  • seizures

Effects on organs?

Dose modification is needed in patients suffering from kidney and liver diseases.

Reported Allergic Reactions?

Possible allergic reactions reported are

rash or blisters


difficulty breathing or swallowing

swelling of the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs

Drug Interactions To Be Careful About

  • All the possible drug interactions might not be listed here. It is always advised that the patient must inform the physician about of all the drugs/products you use especially

Anti-fungal drugs like Ketoconazole

amphotericin B

aminoglycoside antibiotics such as amikacin

Aspirin and other nonsteroidal anti-inflammatory drugs such as ibuprofen

  • Naproxen
  • Cyclosporine
  • Probenecid
  • Interferon
  • Zidovudine
  • You must not take any immunizations or vaccinations while using Acyclovir unless your doctor tells you to.
  • You must also inform about the herbal products that you are consuming.. You must not modify the drug regimen without your doctor’s approval
  • It is very unlikely for Acyclovir to affect hormonal birth control such as pills, rings or patches.

Shows Effects / Results In:

You should start to feel recovered during the first few days of treatment with Acyclovir.

A complete dose prescribed by your doctor must be taken for complete cessation of infection from your body (even if the symptoms disappear)


Is Acyclovir Addictive?


Can I have Acyclovir with alcohol?

The chances of having side effects increases when consumed with alcohol because of dehydrating nature of alcohol on your body.

Any particular food item to be avoided?


You must drink plenty of fluids while taking Acyclovir therapy.

Can I have Acyclovir When Pregnant?

Always inform your doctor if you are pregnant or plan to become pregnant.

Acyclovir should be used during pregnancy only if clearly needed.

Can I have Acyclovir when feeding a baby?

Always inform your doctor if you are breast-feeding your child.

There is evidence that Acyclovir might be excreted in human breast milk.

Acyclovir should be used during breastfeeding only if clearly needed.

Can I drive after taking Acyclovir?

Acyclovir can cause dizziness, confusion and fatigue as a side – effect. You must always drive with caution while taking Acyclovir therapy.

What happens if I overdose on Acyclovir?

An overdose of Acyclovir might potentiate side-effects.

If you have taken an over-dose, it is advisable to contact your consulting physician immediately.

What happens if I eat expired Acyclovir?

The medicine may not work as well. Please inform your physician regarding the same.

What happens if I miss a dose of Acyclovir?

The medicine may not work well if you miss a dose because for effective working of the drug, a certain amount of drug must be present in your body at all times.

Always consume the missed dose as soon as you remember it. But, if it’s already time to take the second dose after that – do not take double dose.

Pro Tips When Taking Acyclovir

You must drink plenty of fluids while taking Acyclovir therapy.

Also Read: Atorvastatin
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