Highlights for acyclovir
acyclovir Side Effects
Side effects that you should report to your doctor or health care professional as soon as possible:
- allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
- chest pain
- confusion, hallucinations, tremor
- dark urine
- increased sensitivity to the sun
- redness, blistering, peeling or loosening of the skin, including inside the mouth
- trouble passing urine or change in the amount of urine
- unusual bleeding or bruising, or pinpoint red spots on the skin
- unusually weak or tired
- yellowing of the eyes or skin
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
- nausea, vomiting
- stomach upset
acyclovir May Interact with Other Medications
How to Use acyclovir
Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. You can take it with or without food. Take your medicine at regular intervals. Do not take your medicine more often than directed. Take all of your medicine as directed even if you think your are better. Do not skip doses or stop your medicine early.
Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for selected conditions, precautions do apply.
They need to know if you have any of these conditions:
- kidney disease
- an unusual or allergic reaction to acyclovir, ganciclovir, valacyclovir, other medicines, foods, dyes, or preservatives
- pregnant or trying to get pregnant
If 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.
Tell your doctor or health care professional if your symptoms do not improve. This medicine works best when started very early in the course of an infection. Begin treatment at the first signs of infection.
Drink 6 to 8 glasses of water or fluids every day while you are taking this medicine. This will help prevent side effects.
You can still pass chickenpox, shingles, or herpes to another person even while you are taking this medicine. Avoid contact with others as directed. Genital herpes is a sexually transmitted disease. Talk to your doctor about how to stop the spread of infection.
Keep out of the reach of children.
Store at room temperature between 15 and 25 degrees C (59 and 77 degrees F). Throw away any unused medicine after the expiration date.
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Last Updated: March 4, 2009