acyclovir
an antiviral drug that inhibits DNA synthesis in cells infected by HERPESVIRUS . Administered topically, by mouth, or intravenously, it is used in the treatment of herpes zoster, genital herpes, herpetic eye disease, and herpes encephalitis and also in patients whose immune systems are compromised. Trade name: Zovirax.
Acyclovir is used to treat viral infections like chickenpox, herpes zoster (shingles) and genital herpes (a sexually transmitted disease). Acyclovir is in a class of medications called antivirals. It works by stopping the spread of the virus in the body. Acyclovir will not cure herpes infections and may not stop the spread of herpes virus to other people.
Full drug information on MedlinePlus →This is general information, not medical advice. Pregnancy and breastfeeding decisions should always be made with your healthcare provider.
Can taking acyclovir affect fertility or make it harder to get pregnant?
It is not known whether acyclovir or valacyclovir can make it harder to get pregnant. If you have questions or concerns about fertility while taking this medication, it's best to discuss them with your healthcare provider.
Does taking acyclovir increase the risk of miscarriage?
Miscarriage can occur in any pregnancy for many different reasons, and studies referenced have not found an increased chance of miscarriage with acyclovir use. Any specific concerns about your pregnancy should be discussed with your healthcare provider.
Does taking acyclovir increase the risk of birth defects?
Every pregnancy starts with a 3-5% background chance of birth defects, and use of acyclovir/valacyclovir is not expected to increase this chance. Reviews by the manufacturer, the CDC, and a separate study including over 1,500 acyclovir-exposed and over 200 valacyclovir-exposed first-trimester pregnancies did not show an increase in birth defects. Your healthcare provider can help you weigh the benefits of treatment against the risks of an untreated infection.
Can taking acyclovir during pregnancy cause other pregnancy-related complications?
The available data suggests that use of acyclovir/valacyclovir later in pregnancy has not been well studied for problems such as preterm delivery or low birth weight, though clinical experience has been reassuring. It also notes that untreated infections themselves could cause problems for the pregnant person, the pregnancy, and the newborn. A healthcare provider can discuss your individual situation.
Can taking acyclovir during pregnancy affect the child's brain development, learning, or behavior?
According to the available data, studies have not been done to determine whether acyclovir or valacyclovir use during pregnancy can cause behavior or learning issues in the child. Any specific questions about long-term child development should be discussed with your healthcare provider.
Is it safe to breastfeed while taking acyclovir?
Acyclovir enters breast milk in small amounts, that it is commonly given directly to newborns, and that it does not typically cause problems for breastfeeding babies. If acyclovir cream or ointment is being applied directly to the breast, the fact sheet advises cleaning the area well before nursing. Your healthcare provider can address any specific breastfeeding questions.
Source: National Library of Medicine
acyclovir