Do not take this medicine with any of the following medications:

-cidofovir

This medicine may also interact with the following medications:

-adefovir
-amphotericin B
-certain antibiotics like amikacin, gentamicin, tobramycin, vancomycin
-cimetidine
-cisplatin
-colistin
-cyclosporine
-foscarnet
-lithium
-methotrexate
-probenecid
-tacrolimus

They need to know if you have any of these conditions:
-acquired immunodeficiency syndrome (AIDS)
-any other condition that may weaken the immune system
-bone marrow or kidney transplant
-kidney disease
-an unusual or allergic reaction to valacyclovir, acyclovir, ganciclovir, valganciclovir, other medicines, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

Tell your doctor or health care professional if your symptoms do not start to get better after 1 week.

This medicine works best when taken early in the course of an infection, within the first 72 hours. Begin treatment as soon as possible after the first signs of infection like tingling, itching, or pain in the affected area.

It is possible that genital herpes may still be spread even when you are not having symptoms. Always use safer sex practices like condoms made of latex or polyurethane whenever you have sexual contact.

You should stay well hydrated while taking this medicine. Drink plenty of fluids.

Keep out of the reach of children.

Store at room temperature between 15 and 25 degrees C (59 and 77 degrees F). Keep container tightly closed. Throw away any unused medicine after the expiration date.