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Drug Safety-related Labeling Changes (SrLC)

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SITAVIG (NDA-203791)

(ACYCLOVIR)

Safety-related Labeling Changes Approved by FDA Center for Drug Evaluation and Research (CDER)

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12/18/2019 (SUPPL-1)

Approved Drug Label (PDF)

8 Use in Specific Populations

Lactation

(New subsection added)

There are no data on the presence of acyclovir in human milk following buccal administration. There are no data on the effects of acyclovir on the breastfed infant or milk production. Systemic exposure following buccal administration of acyclovir is minimal [see Clinical Pharmacology (12.3)]. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for SITAVIG and any potential adverse effects on the breastfed child from SITAVIG or from the underlying maternal condition.

Pregnancy

(Additions and/or revisions underlined)

 There are no available data on SITAVIG use in pregnant women. However, published observational studies over decades of use of acyclovir have not identified a drug- associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. Systemic exposure of acyclovir following buccal administration of SITAVIG is minimal [see Clinical Pharmacology (12.3)]. Animal reproduction studies have not been conducted with SITAVIG. Animal reproduction studies with systemic exposure of acyclovir have been conducted. Refer to oral and parental acyclovir prescribing information for additional details.

17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

PATIENT COUNSELING INFORMATION

(Newly added information)

Inform patients that SITAVIG is not a cure for cold sores.

Patient Information

(Newly added information)

Talk to your healthcare provider about the best way to feed your baby during treatment with SITAVIG.