What should I discuss with my healthcare provider before using acyclovir (Zovirax Injection)?
Do not use this medicine if you are allergic to acyclovir or valacyclovir (Valtrex).
Before using acyclovir, tell your doctor if you are allergic to any drugs, or if you have:
- kidney disease (or if you are on dialysis);
- liver disease;
- a brain or nervous system disorder such as Parkinson's disease, schizophrenia, or tardive dyskinesia;
- breathing problems; or
- an electrolyte imbalance (such as high or low calcium , sodium, or potassium blood levels).
If you have any of these conditions, you may need a dose adjustment or special tests to safely use acyclovir injection.
FDA pregnancy category B. This medication is not expected to be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment. Herpes virus can be passed from an infected mother to her baby during childbirth. If you have genital herpes, it is very important to prevent herpes lesions during your pregnancy so that you do not have a genital lesion when your baby is born.
Acyclovir passes into breast milk and may harm a nursing infant. Do not take this medication without telling your doctor if you are breast-feeding a baby.
How should I take acyclovir (Zovirax Injection)?
Use this medication exactly as it was prescribed for you. Do not use the medication in larger amounts, or take it for longer than recommended by your doctor. Follow the directions on your prescription label.
This medication is given as an injection through a needle placed into a vein. Your doctor, nurse, or other healthcare provider will give you this injection. The medicine must be given slowly through an IV infusion, and can take at least 1 hour to complete.
You may be shown how to use your medicine at home. Do not self-inject this medicine if you do not fully understand how to give the injection and properly dispose of needles, IV tubing, and other items used in giving the medicine.
Treatment with acyclovir should be started as soon as possible after the first appearance of symptoms (such as tingling, burning, blisters).
Use each disposable needle only one time. Throw away used needles in a puncture-proof container (ask your pharmacist where you can get one and how to dispose of it). Keep this container out of the reach of children and pets.
Drink plenty of water while you are taking acyclovir to keep your kidneys working properly.
Use this medication for the entire length of time prescribed by your doctor. Your symptoms may get better before the infection is completely treated. Acyclovir will not treat a viral infection such as the common cold or flu.
Lesions caused by herpes viruses should be kept as clean and dry as possible. Wearing loose clothing may help to prevent irritation of the lesions.
Store acyclovir at room temperature away from moisture and heat.