Drugs >  Valacyclovir
Valacyclovir
Pronunciation
Brand Names
Therapeutic Categories
Reasons not to take this medicine
What is this medicine used for?
How does it work?
How is it best taken?
What do I do if I miss a dose?
What are the precautions when taking this medicine?
What are the common side effects of this medicine?
What should I monitor?
Reasons to call healthcare provider immediately
How should I store this medicine?
General statements

Pronunciation
(val ay SYE kloe veer)

Brand Names
Valtrex®

Therapeutic Categories
Antiviral Agent, Ophthalmic

Reasons not to take this medicine

  • If you have an allergy to valacyclovir or any other part of the medicine.


What is this medicine used for?

  • This medicine is used for the treatment and prevention of herpes infections.
  • If treating herpes zoster, valacyclovir should be started as soon as possible; no later than 3 days after rash appears.


How does it work?

  • Valacyclovir prevents this virus from functioning normally. Virus reproduction process is stopped.


How is it best taken?

  • Take with or without food. Take with food if this medicine causes an upset stomach.
  • Take with a full glass of water.
  • Drink 8 tall glasses of liquid everyday unless told to drink less liquid by healthcare provider.
  • If you are treating a repeat infection start medicine as soon as possible.
  • Use entire prescription as directed, even if feeling better.


What do I do if I miss a dose?

  • Take a missed dose as soon as possible.
  • If it is almost time for the next dose, skip the missed one. Return to your regular schedule.
  • Do not take a double dose or extra doses.
  • Do not change dose or stop taking medicine without talking with healthcare provider.


What are the precautions when taking this medicine?

  • You may not be alert. Avoid driving, doing other tasks or activities until you see how this medicine affects you.
  • You can get sunburned more easily. Avoid lots of sun. Use sunscreen; wear protective and eyewear.
  • Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, throat; or any other symptoms involved.
  • Tell healthcare provider if you are pregnant or plan on getting pregnant.
  • Tell healthcare provider if you are breast-feeding.


What are the common side effects of this medicine?

  • Headache. Mild pain medicine may help.
  • Nausea or vomiting. Small frequent meals, frequent mouth care, sucking hard candy, or chewing gum may help.
  • Diarrhea. Yogurt, Bifidobacterium bifidum , or Lactobacillus acidophilus may help. These products are available at health food stores or in some pharmacies.


What should I monitor?

  • If you are taking this medicine for repeat infections, watch for signs of another infection. Start medicine as soon as possible after a sign of infection.
  • Follow up with healthcare provider.


Reasons to call healthcare provider immediately

  • Signs of a life-threatening reaction. These include wheezing; tightness in the chest; fever; itching; bad cough; blue skin color; fits; swelling of face, lips, tongue, or throat.
  • Severe nausea, vomiting, or diarrhea.
  • Severe headache.
  • Any rash.


How should I store this medicine?

  • Store in a tight container at room temperature.


General statements

  • Do not share your medicine with others and do not take anyone else's medicine.
  • Keep all medicine out of the reach of children and pets.
  • Keep a list of all your medicines (prescription, herbal/supplements, vitamins, over-the-counter) with you. Give this list to healthcare provider (doctor, nurse, pharmacist, physician assistant).
  • Talk with healthcare provider before starting any new medicine, including over-the-counter or natural products (herbs, vitamins).


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