What side effects can this medication cause?
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
Stop using aciclovir (acyclovir) and call your doctor at once if you have any of these serious side effects:
urinating less than usual or not at all
fever, chills, body aches, flu symptoms
a red, blistering, peeling skin rash
jaundice (yellowing of the skin or eyes)
swelling, pain, tenderness, or skin changes where the injection was given
pale skin, easy bruising or bleeding
confusion, tremors, agitation, tiredness, hallucinations, seizure
weakness
Continue using aciclovir and talk with your doctor if you have any of these less serious side effects:
nausea, vomiting, diarrhea, stomach pain, loss of appetite
muscle pain, numbness or tingling
lack of coordination
sleep problems (insomnia)
headache, feeling light-headed
swelling in your hands or feet
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.
Why is this medication prescribed?
Dosage and using this medicine
What special precautions should I follow?
What should I do if I forget a dose?
What storage conditions are needed for this medicine?
In case of an emergency/overdose