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What is Acyclovir 400mg used for?

Acyclovir 400mg is an antiviral drug prescribed to treat infections such as chickenpox, genital herpes, shingles and cold sores, which are caused by herpes viruses. It decreases the growth and spread of herpes virus in the body and helps faster healing of sores. Acyclovir eye ointment is used to treat viral eye infections caused by herpes simplex viruses. Acyclovir is available as tablet, topical cream and eye ointment forms. This medicine may also be used to treat other conditions as determined by your doctor.

What are the side effects of Acyclovir 400mg?

Like other medicines, Acyclovir 400mg can cause some side effects. If they do occur, the side effects of Acyclovir are most likely to be minor and temporary. However, some may be serious and may require the individual to inform the doctor or visit the nearest hospital immediately.

It is pertinent to note that side effects of Acyclovir cannot be anticipated. If any side effects of Acyclovir develop or change in intensity, the doctor should be informed as soon as possible.

Acyclovir tablet can cause side effects such as dizziness, nausea, vomiting, headache, diarrhea, loss of appetite, and swelling in your hands or feet.

Acyclovir cream can cause side effects such as cracked/dry lips, burning, and stinging.

Acyclovir eye ointment can cause side effects such as stinging, increased sensitivity to light, and blurred vision. This is not a complete list of all side effects. Do concur with your doctor and follow his directions completely when you are using Acyclovir.

What is the recommended dosage of Acyclovir?

The dosage of Acyclovir prescribed to each patient will vary. Always follow your physician’s instructions and/or the directions on the prescription drug label.

Take Acyclovir tablet with a full glass of water. It can be taken with or without food. Drink plenty of fluids while you are taking this medication.

Apply Acyclovir cream liberally onto the affected area. Do not use this medication in the eyes.

Apply a thin line of Acyclovir eye ointment along the inside of the lower eye lid. Wash your hands before and after use.

What if you miss a dose of Acyclovir?

If your physician has instructed or directed you to use Acyclovir medication in a regular schedule and you have missed a dose of this medicine, use it as soon as you remember. However, if it is almost time for your next dose, then skip the missed dose and go back to your regular dosing schedule. Do not double the doses unless otherwise directed.

What if you overdose on Acyclovir?

Any medication taken in excess can have serious consequences. If you suspect an overdose of Acyclovir, seek medical attention immediately.

What other drugs could interact with Acyclovir 400mg?

It may be noted that drugs other than those listed above may also interact with Acyclovir.

Usually drug interactions occur when it is taken with another drug or with food. Before you take a medication for a particular ailment, you should inform the health expert about intake of any other medications including non-prescription medications, over-the-counter medicines that may increase the effect of Acyclovir, and dietary supplements like vitamins, minerals and herbal, so that the doctor can warn you of any possible drug interactions.

Acyclovir can interact with nonsteroidal anti-inflammatory drugs.

Do let your doctor know if you smoke, consume alcohol or caffeinated drinks, or use illegal drugs as these may interfere with the action of your medication. Make sure to inform your doctor of any medical conditions you may have, or any family history of medical problems. Do not start or stop using any medicine without consulting your doctor.

Where can I buy Acyclovir 400mg over the counter?

No – Acyclovir 400mg without prescription is not possible as it is a prescription-only treatment which must be prescribed by a doctor or pharmacist. You can purchase Aciclovir medicine through The Independent Pharmacy following an online consultation. Acyclovir alternative can be ordered over the counter but it is recommended to consult a doctor before consuming the medication.

Can I buy Acyclovir 400mg without a prescription?

You can request a Acyclovir 400mg over the counter prescription online after a medical consultation with a licensed doctor. Some of the popular, effective and widely used medications are available as Acyclovir alternative.

What are the questions to ask your doctor before taking Acyclovir 400mg tablet?

Is it possible for me to use Acyclovir with other drugs?
Should certain beverages, foods and other products be avoided when I use Acyclovir?
What are the possible drug interactions of Acyclovir?
How will Acyclovir work in my body?
How should Acyclovir be used?
How to reduce the risk of Acyclovir drug interactions and side effects?


The health and medical information provided here is intended to supplement and not substitute for the expertise and judgment of your physician, pharmacists or other health care professional. It should not be understood to indicate that the use of Acyclovir is safe, appropriate or effective for you. Always consult your health care professional before using this, or any other, drug.


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