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Varivax Dosage

Medically reviewed by Drugs.com. Last updated on Apr 7, 2021.

Generic name: VARICELLA-ZOSTER VIRUS STRAIN OKA/MERCK LIVE ANTIGEN 1350[PFU] in 0.5mL
Dosage form: subcutaneous injection, powder, lyophilized, for suspension subcutaneous injection

Subcutaneous administration only

Recommended Dose and Schedule

Each 0.5 mL dose of VARIVAX is administered subcutaneously.

Children (12 months to 12 years of age)

The first dose is administered at 12 to 15 months of age but may be given anytime through 12 years of age.

The second dose is administered at 4 to 6 years of age. At least 3 months should elapse between a dose of varicella-containing vaccine and VARIVAX.

At least 1 month should elapse between a dose of measles-containing vaccine and a dose of VARIVAX if the vaccines are not given concurrently [see Clinical Studies (14.1)].

Adolescents (≥13 years of age) and Adults

Two doses of VARIVAX are administered at a minimum interval of 4 weeks [see Clinical Studies (14.1)].

Reconstitution Instructions

Use a sterile syringe free of preservatives, antiseptics, and detergents for each reconstitution and injection of VARIVAX because these substances may inactivate the vaccine virus. When reconstituting the vaccine, use only the sterile diluent supplied with VARIVAX. The sterile diluent does not contain preservatives or other anti-viral substances which might inactivate the vaccine virus.

To reconstitute the vaccine, withdraw the total volume of supplied sterile diluent and inject into the lyophilized vaccine vial. Agitate to dissolve completely. Discard if the lyophilized vaccine cannot be dissolved.

Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Do not use the product if particulates are present or if it appears discolored. Visually inspect the vaccine before and after reconstitution prior to administration. Before reconstitution, the lyophilized vaccine is a white compact crystalline plug. VARIVAX, when reconstituted, is a clear, colorless to pale yellow liquid.

Withdraw the entire amount of reconstituted vaccine, inject the total volume and discard vial.

To minimize loss of potency, administer VARIVAX immediately after reconstitution. Discard if reconstituted vaccine is not used within 30 minutes.

Do not freeze reconstituted vaccine.

Do not combine VARIVAX with any other vaccine through reconstitution or mixing.

Method of Administration

Inject the vaccine subcutaneously into the outer aspect of the deltoid region of the upper arm or into the higher anterolateral area of the thigh.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.