Enten gives ProQuad i 2 doser eller som en enkelt dosis efterfulgt af en dosis af en vaccine, der kun beskytter mod skoldkopper.
In order to protect against varicella (chickenpox), two doses of the weakened varicella virus are needed; this can be done either by giving two doses of ProQuad, or by giving a single dose of ProQuad followed by a dose of another vaccine that only protects against varicella.