Zovirax

Recommended dosage for Zovirax

ADULTS

For Genital Herpes

The usual dose is one 200-milligram capsule or 1 teaspoonful of liquid every 4 hours, 5 times daily for 10 days. If the herpes is recurrent, the usual adult dose is 400 milligrams (two 200-milligram capsules, one 400-milligram tablet or 2 teaspoonfuls) 2 times daily for up to 12 months.

If genital herpes is intermittent, the usual adult dose is one 200-milligram capsule or 1 teaspoon of liquid every 4 hours, 5 times a day for 5 days. Therapy should be started at the earliest sign or symptom.

Ointment: Apply ointment to affected area every 3 hours, 6 times per day, for 7 days. Use enough ointment (approximately one-half inch ribbon of ointment per 4 square inches of surface area) to cover the affected area.

For Herpes Cold Sores

Apply Zovirax cream to the affected area 5 times a day for 4 days. Therapy should begin as soon as possible after the first sign of a cold sore such as a bump, tingling, redness, or itchiness.

For Herpes Zoster (Shingles)

The usual adult dose is 800 milligrams (one 800-milligram tablet or 4 teaspoonfuls of liquid) every 4 hours, 5 times daily for 7 to 10 days.

For Chickenpox:

The usual adult dose is 800 milligrams 4 times a day for 5 days.

If you have a kidney disorder, the dose will need to be adjusted by your doctor.

CHILDREN

The usual dose for chickenpox in children 2 years of age and older is 20 milligrams per 2.2 pounds of body weight taken orally 4 times daily, for a total of 80 milligrams per 2.2 pounds, for 5 days. A child weighing more than 88 pounds should take the adult dose.

The safety and effectiveness of oral Zovirax have not been established in children under 2 years of age. However, your doctor may decide that the benefits of this medication outweigh the potential risks. The safety and effectiveness of Zovirax ointment in children have not been established. Zovirax cream has not been studied in children less than 12 years old.

OLDER ADULTS

Your doctor will start you at the low end of the dosage range, since older adults are more apt to have kidney problems or other disease, or to be taking other medications.

Overdosage

Zovirax is generally safe. However, any medication taken in excess can have serious consequences. If you suspect an overdose, seek medical attention immediately.

• Symptoms of Zovirax overdose may include:
  Agitation, kidney failure, lethargy, coma, seizures