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acyclovir (oral)

acyclovir (oral)

Pronunciation: a SYE klo veer

Brand: Zovirax

Acyclovir 200 mg-APO

capsule, blue/white, imprinted with APO, 042

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Acyclovir 200 mg-PAR

capsule, blue, imprinted with G, 0034

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Acyclovir 200 mg-PP

oval, green, imprinted with R 605

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Acyclovir 200 mg-RAN

capsule, white, imprinted with RX652

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Acyclovir 200 mg-SCH

capsule, white, imprinted with Zenith 4266, 200

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Acyclovir 200 mg-TEV

capsule, blue, imprinted with N 940, 200

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Acyclovir 200 mg-UDL

capsule, blue, imprinted with N 940, 200

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Acyclovir 200 mg-WAT

capsule, blue/turquoise, imprinted with WATSON, Acyclovir 200

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Acyclovir 200 mg-ZEN

capsule, white, imprinted with Zenith 4266, 200

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Acyclovir 400 mg-APO

oval, white, imprinted with LOGO 5306

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Acyclovir 400 mg-NOV

oblong, blue, imprinted with N 943, 400

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Acyclovir 400 mg-PAR

pentagonal, white, imprinted with G 0036

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Acyclovir 400 mg-PP

round, white, imprinted with 606, R

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Acyclovir 400 mg-RAN

oval, white, imprinted with RX504

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Acyclovir 400 mg-TEV

oval, blue, imprinted with N943, 400

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Acyclovir 400 mg-WAT

oblong, white, imprinted with WATSON 335

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Acyclovir 400 mg-ZEN

round, white, imprinted with Hourglass Logo 4267, 400

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Acyclovir 800 mg-APO

oval, white, imprinted with AX5307

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Acyclovir 800 mg-PP

oval, green, imprinted with R607

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Acyclovir 800 mg-SCH

oval, white, imprinted with ACY 800

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Acyclovir 800 mg-TEV

oval, white, imprinted with N947, 800

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Acyclovir 800 mg-WAT

oblong, white, imprinted with WATSON 336

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Acyclovir 800 mg-ZEN

oval, white, imprinted with Hourglass Logo 4268, 800

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Zovirax 400 mg

hexagonal, white, imprinted with ZOVIRAX, LOGO

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What is the most important information I should know about acyclovir?

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Take this medication for the entire length of time prescribed by your doctor. Your symptoms may get better before the infection is completely treated.

Treatment with acyclovir should be started as soon as possible after the first appearance of symptoms (such as tingling, burning, blisters).

Herpes infections are contagious and you can infect other people, even while you are being treated with acyclovir. Avoid letting infected areas come into contact with other people. Avoid touching an infected area and then touching your eyes. Wash your hands frequently to prevent passing the infection to others.

What is acyclovir?

Acyclovir is an antiviral drug. It slows the growth and spread of the herpes virus so that the body can fight off the infection. Acyclovir will not cure herpes, but it can lessen the symptoms of the infection.

Acyclovir is used to treat infections caused by herpes viruses. Illnesses caused by herpes viruses include genital herpes, cold sores, shingles, and chicken pox.

Acyclovir may also be used for purposes other than those listed in this medication guide.

What should I discuss with my healthcare provider before taking acyclovir?

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Do not take this medicine if you are allergic to acyclovir or valacyclovir (Valtrex).

Before taking acyclovir, tell your doctor if you are allergic to any drugs, or if you have kidney disease. You may need a dosage adjustment or special tests during treatment.

Multum nopreg

FDA pregnancy category B. This medication is not expected to be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment. Herpes virus can be passed from an infected mother to her baby during childbirth. If you have genital herpes, it is very important to prevent herpes lesions during your pregnancy so that you do not have a genital lesion when your baby is born.

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Acyclovir passes into breast milk and may harm a nursing infant. Do not take this medication without telling your doctor if you are breast-feeding a baby.

How should I take acyclovir?

Take this medication exactly as it was prescribed for you. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor. Follow the directions on your prescription label.

Treatment with acyclovir should be started as soon as possible after the first appearance of symptoms (such as tingling, burning, blisters).

Multum water

Take each dose with a full glass of water. Drink plenty of water while you are taking acyclovir to keep your kidneys working properly.

Acyclovir can be taken with or without food. Taking acyclovir with food may decrease stomach upset.

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Shake the oral suspension (liquid) well just before you measure a dose. To be sure you get the correct dose, measure the liquid with a marked measuring spoon or medicine cup, not with a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.

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Take this medication for the entire length of time prescribed by your doctor. Your symptoms may get better before the infection is completely treated. Acyclovir will not treat a viral infection such as the common cold or flu.

Lesions caused by herpes viruses should be kept as clean and dry as possible. Wearing loose clothing may help to prevent irritation of the lesions.

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Store acyclovir at room temperature away from moisture and heat.

What happens if I miss a dose?

Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at the next regularly scheduled time. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

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Seek emergency medical attention if you think you have used too much of this medicine.

Overdose symptoms may include seizure (convulsions), hallucinations, and urinating less than usual or not at all.

What should I avoid while taking acyclovir?

Herpes infections are contagious and you can infect other people, even while you are being treated with acyclovir. Avoid letting infected areas come into contact with other people. Avoid touching an infected area and then touching your eyes. Wash your hands frequently to prevent passing the infection to others.

Acyclovir will not prevent the spread of genital herpes. Avoid sexual intercourse or use a latex condom to prevent spreading the virus to others.

What are the possible side effects of acyclovir?

Multum emt

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Multum emt

Call your doctor at once if you have any of these serious side effects:

  • pain in your lower back;
  • urinating less than usual or not at all;
  • easy bruising or bleeding; or
  • unusual weakness.

Less serious side effects may include:

  • nausea, vomiting, diarrhea, loss of appetite, stomach pain;
  • headache, feeling light-headed; or
  • swelling in your hands or feet.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect acyclovir?

Before taking acyclovir, tell your doctor if you are also taking probenecid (Benemid). If you are using probenecid, you may not be able to use acyclovir, or you may need dosage adjustments or special tests during treatment.

There may be other drugs that can affect acyclovir. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.

Where can I get more information?

Your pharmacist can provide more information about acyclovir.


Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

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