Drug Uses

ACYCLOVIR:

Acyclovir is used to treat herpes infections of the skin, lip, and genitals; herpes zoster (shingles); and chickenpox. It does not cure herpes infections but decreases pain and itching and promotes healing. Sometimes acyclovir is given to help prevent the infection from coming back. Acyclovir also treats shingles and chickenpox infections. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

ZOVIRAX:

Zovirax (Aciclovir) is used to treat herpes infections of the skin, lip, and genitals; herpes zoster (shingles); and chickenpox. It does not cure herpes infections but decreases pain and itching and promotes healing. Topical Zovirax does not prevent the recurrence of sores but may decrease pain and itching if applied when the earliest symptoms first appear. Oral Zovirax decreases the frequency and severity of recurrent sores, but it is used only by people with severe herpes infections because of possible adverse effects. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

How Taken

ACYCLOVIR:

Acyclovir tablets or capsules should be taken by mouth, following the directions on the prescription label. Swallow whole with a full glass of water. Take your doses at regular intervals, with or without food, not more often than directed. Finish the full course prescribed by your prescriber or health care professional even if you think your condition is better. Do not stop taking except on your prescriber's advice. Special care may be needed for use of this medicine in children, contact your pediatrician or health professional.

ZOVIRAX:

Treatment with Zovirax topical should be started as soon as possible after the first appearance of symptoms (e.g. tingling, burning, blisters). Wash your hands before and after applying Zovirax topical. Wear a glove or a finger cot or use an applicator (e.g. cotton swab) when applying Zovirax topical to avoid spreading the virus to other body parts and to other people. Apply enough ointment to cover the lesion(s) completely. A one-half inch ribbon of ointment should cover approximately 4 square inches of surface area. Avoid getting this medication in the eyes. Zovirax topical is usually applied every 3 hours, six times a day for seven days. Follow your doctor's instructions. Use Zovirax topical for the full amount of time prescribed, even if you begin to feel better. Your symptoms may start to improve before the infection is completely treated. 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.

Warnings/Precautions

ACYCLOVIR:

Patients with renal impairment need dosage adjustments. Caution should also be exercised to patients receiving potentially nephrotoxic agents (this may increase the risk of renal dysfunction and/or the risk of reversible central nervous system symptoms such as those that have been reported in patients treated with intravenous acyclovir). Patients should consult with their physician if any adverse reactions occurs, also if they become pregnant or intend to become pregnant, they intend to breastfeed while taking orally administered Acyclovir, or they have any other questions.
Herpes Zoster: There are no data on treatment initiated more than 72 hours after onset of the zoster rash. Patients should be advised to initiate treatment as soon as possible after a diagnosis of herpes zoster.
Genital Herpes Infections: Acyclovir is not a cure for genital herpes.
Chickenpox: Chickenpox in otherwise healthy children is usually a self-limited disease of mild to moderate severity. Adolescents and adults tend to have more severe disease. Treatment was initiated within 24 hours of the typical chickenpox rash in the controlled studies, and there is no information regarding the effects of treatment begun later in the disease course.

ZOVIRAX:

Before using Zovirax topical, tell your doctor if you have any other medical conditions or if you use any other medications. Zovirax topical is in the FDA pregnancy category C, which means that it is not known whether it will harm an unborn baby. Do not use Zovirax topical without first talking to your doctor if you are pregnant. It is not known whether Zovirax topical passes into breast milk. Do not use Zovirax topical without first talking to your doctor if you are breast feeding a baby.

Missed Dose

ACYCLOVIR:

In case you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

ZOVIRAX:

Apply it as soon as you remember and apply further doses at your regular interval (e.g., every 3 hours) until you go to bed. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.

Possible Side Effects

ACYCLOVIR:

Side effects depend upon the dose you are taking and the infection being treated. These side effects you should report to your prescriber or health care professional as soon as possible: confusion or hallucinations, increased thirst,redness, blistering, peeling or loosening of the skin, including inside the mouth, reduced amount of urine passed, seizures, skin rash or hives, stomach pain, tremor, unusual weakness or tiredness Side effects that usually do not require medical attention (report to your prescriber or health care professional if they continue or are bothersome): diarrhea, dizziness, headache, increased sensitivity to the sun, loss of appetite, nausea, vomiting.

ZOVIRAX:

No serious side effects are expected during treatment with Zovirax topical. If you suspect an allergic reaction (difficulty breathing; rash; hives; itching; swelling of your lips, tongue, or face) seek emergency medical attention. Other less serious side effects may be more likely to occur. Continue to use Zovirax topical and talk to your doctor if you experience itching, stinging, burning, or a rash. These side effects should resolve quickly. Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

Storage

ACYCLOVIR:

Store at room temperature between 15° and 25°C (59° and 77°F). Protect from light and moisture. Keep out of the reach of children. Throw away any unused medicine after the expiration date.

ZOVIRAX:

Store below 25°C. Do not refrigerate.

Overdose

ACYCLOVIR:

Agitation, coma, seizures, and lethargy may occur in association with overdosage. Overdosage has been reported following bolus injections or inappropriately high doses and in patients whose fluid and electrolyte balance were not properly monitored. This has resulted in elevated BUN and serum creatinine and subsequent renal failure. In the event of acute renal failure and anuria, the patient may benefit from hemodialysis until renal function is restored

ZOVIRAX:

An overdose of this medication is not likely to occur. If you suspect an overdose or ingestion of Zovirax topical, call an emergency room or poison control left for advice.

More Information

Tell your prescriber or health care professional about all other medicines you are taking, including non-prescription medicines, nutritional supplements, or herbal products. Also tell your prescriber or health care professional if you are a frequent user of drinks with caffeine or alcohol, if you smoke, or if you use illegal drugs. These may affect the way your medicine works. Check with your health care professional before stopping or starting any of your medicines. Follow the directions for using Acyclovir provided by your doctor.
Zovirax Cream is contra-indicated in patients known to be hypersensitive to acyclovir or propylene glycol. Zovirax is most effective if it is started within 48 hours of when the rash first appears. Follow the directions for using Zovirax provided by your doctor.

Disclaimer

This drug information is for your information purposes only, it is not intended that this information covers all uses, directions, drug interactions, precautions, or adverse effects of your medication. This is only general information, and should not be relied on for any purpose. It should not be construed as containing specific instructions for any particular patient. We disclaim all responsibility for the accuracy and reliability of this information, and/or any consequences arising from the use of this information, including damage or adverse consequences to persons or property, however such damages or consequences arise. No warranty, either expressed or implied, is made in regards to this information.