ACYCLOVIR: Adverse Effects Common(for I.V. only Pain, swelling, or redness at place of injection Less common Abdominal or stomach pain; diarrhea Loss of appetite Headache, nausea or vomiting Unusual tiredness or weakness Renal insufficiency Neurological toxicity f for I V. only Rare Chills, fever, or sore throat; confusion; convulsions, pinpoint red spots on skin, tremblingACYCLOVIR: Adverse Effects Common (for I.V. only) • Pain, swelling, or redness at place of injection Less common – Abdominal or stomach pain; diarrhea – Loss of appetite – Headache, nausea or vomiting – Unusual tiredness or weakness – Renal insufficiency – Neurological toxicity Rare • Chills, fever, or sore throat; confusion; convulsions, pinpoint red spots on skin, trembling. for I.V. only