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Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn more about their health. Our providers may not see and/or treat all topics found herein.

Acyclovir Injection (ACYCLOVIR - INJECTION)

For treating viral infections.

Generic Name: Acyclovir

Instructions

This medicine is given as an IV injection into a vein.

Carefully follow the instructions for preparing this medicine before injection.

Follow package direction for diluting medicine with IV fluids or as instructed by your doctor or nurse.

Do not dilute the medicine until ready to use.

Always inspect the medicine before using.

The liquid should be clear and colorless.

Do not use the medicine if it contains any particles or if it has changed color.

Shake well to dissolve any visible particles. Do not use if particles do not disappear.

Keep medicine at room temperature. Protect from light.

Never use any medicine that has expired.

Discard any remaining medicine after your dose is given.

Space doses evenly to keep a steady amount of medicine in the body.

Drink extra water while on this medicine. Adults should try to drink 6-8 cups (48 to 64 oz.) of water every day.

If you miss a dose, contact your doctor for instructions.

Drug interactions can change how medicines work or increase risk for side effects. Tell your health care providers about all medicines taken. Include prescription and over-the-counter medicines, vitamins, and herbal medicines. Speak with your doctor or pharmacist before starting or stopping any medicine.

Tell your doctor if symptoms do not get better or if they get worse.

Talk to your doctor before taking other medicines, including aspirins and ibuprofen containing products. Speak to your doctor about which medicines are safe to use while you are on this medicine.

Keep using this medicine for the full number of days that it is prescribed. Do not stop the medicine even if you start to feel better.

It is very important that you follow your doctor's instructions for all blood tests.

Do not take the medicine more than three times during 24 hours.

Cautions

Tell your doctor and pharmacist if you ever had an allergic reaction to a medicine.

Some patients taking this medicine have experienced serious side effects. Please speak with your doctor to understand the risks and benefits associated with this medicine.

Do not use the medication any more than instructed.

Contact your doctor if you notice a change in the amount or darkening of your urine.

Contact your doctor if you develop any signs of a new infection such as fever, cough, sore throat, or chills.

Speak with your health care provider before receiving any vaccinations.

Tell the doctor or pharmacist if you are pregnant, planning to be pregnant, or breastfeeding.

Ask your pharmacist how to properly throw away used needles or syringes.

Do not share this medicine with anyone who has not been prescribed this medicine.

Side Effects

The following is a list of some common side effects from this medicine. Please speak with your doctor about what you should do if you experience these or other side effects.

  • decreased appetite
  • pain, redness, swelling near injection
  • nausea and vomiting

Call your doctor or get medical help right away if you notice any of these more serious side effects:

  • bleeding or bruising
  • confusion
  • dizziness or drowsiness
  • hallucinations (unusual thoughts, seeing or hearing things that are not real)
  • fast or irregular heart beats
  • kidney problems
  • seizures
  • blurring or changes of vision

A few people may have an allergic reaction to this medicine. Symptoms can include difficulty breathing, skin rash, itching, swelling, or severe dizziness. If you notice any of these symptoms, seek medical help quickly.

Please speak with your doctor, nurse, or pharmacist if you have any questions about this medicine.