The following numbers do not provide medical advice, but in the US you may report side effects to the Food and Drug Administration FDA at 1-800-FDA-1088. When taking this medication to treat an outbreak, it works best if you take this medication when you first notice an outbreak is starting. This medication is not expected to be harmful to an unborn baby. Com provides free, accurate and independent advice on more than 24,000 prescription drugs, over-the-counter medicines natural products. There are no adequate and well-controlled studies of valacyclovir comprar pilulas dieteticas VALTREX or acyclovir in pregnant women. Caution is advised when using this drug in the elderly because they may be more sensitive to the effects of the drug, especially confusion, agitation, and kidney problems. However, herpes virus can be passed from an infected mother to her baby during childbirth.