Sitavig Resources for Pharmacists


Applying Sitavig

  • Apply one SITAVIG 50mg buccal tablet as a single dose to the upper gum (canine fossa) region.
  • SITAVIG should be applied within one hour after the onset of prodromal symptoms and before the appearance of any signs of herpes labialis.
  • Instruct patients not to crush, chew, suck or swallow tablets.

Dosage Forms and Strengths

50mg buccal tablets.


Known hypersensitivity to acyclovir, milk protein concentrate, or any other component of the product.

Adverse Reactions

Most common adverse reactions (≥1%) are: headache and application site pain.

How Sitavig is Supplied/Storage And Handling

Sitavig (acyclovir), 50mg Muco-Adhesive Buccal Tablets are supplied as off-white tablets containing 50mg of acyclovir. Sitavig tablets have a rounded side and a flat side. Sitavig tablets are packaged in blisters (NDC 68712-049-02).

Sitavig should be stored at 20 to 25°C (68 to 77°F) [see USP controlled room temperature]; excursions between 15 and 30°C (59-86°F) permitted at room temperature. Protect from moisture, and keep out of reach of children.

How to Apply Sitavig
How Sitavig Works

Order Sitavig

For stocking inquiries, please call 1-800-499-4468 [table id=1 /]


  1. Sitavig [package insert]. Charleston, SC: EPI Health LLC; 2015.
Indication & Important Safety Information

Sitavig® (acyclovir) 50 mg buccal tablet is indicated for

the treatment of recurrent herpes labialis (cold sores) in immunocompetent



  • Sitavig® (acyclovir) 50 mg buccal tablet should not be used in patients with known hypersensitivity to acyclovir, milk protein concentrate, or any other component of the product.
  • Sitavig has not been studied in immunocompromised patients. No interaction studies have been performed. Sitavig’s safety and efficacy have not been established in pediatric patients.
  • 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. It is not known if Sitavig is excreted in breast milk; however, systemic exposure following buccal administration of acyclovir is minimal. Before administration, discuss if the patient is lactating or planning to breastfeed.
  • The possibility of viral resistance to acyclovir should be considered in patients who fail to respond or experience recurrent viral shedding during therapy.
  • In a controlled clinical trial, the most common side effects (greater than or equal to 1%) for Sitavig were: headache (3%), dizziness (1%), lethargy (1%), gingival (gum) pain (1%), aphthous stomatitis (canker

    sores) (1%), application site pain (1%), application site irritation (1%), erythema (redness) (1%), and rash (1%). In the same trial, these side effects ranged from 0% to 3% for placebo.

You are encouraged to report negative side effects of prescription

drugs to the FDA. Call

1-800-FDA-1088 or visit

Please see Full Prescribing Information.