When used for preventing measles, mumps, rubella, and chickenpox, the MMRV dosage is standard for all children. The first injection is given at 12 to 15 months of age, and the second injection is given around age 4 to 6. However, some people may not choose to use the MMRV vaccine for the first dose, as it could cause fevers and febrile seizures.
In Introduction to Dosing With MMRVThere is only one standard dosage for MMRV (ProQuad®), regardless of your child's age or weight. You should not delay your child's vaccines without first discussing it with your healthcare provider.
Typical MMRV Vaccine ScheduleThe standard MMRV dosing schedule consists of two doses. The first is given at 12 to 15 months of age, and the second is given just before starting elementary school (age 4 to 6 years old).
MMRV contains the measles, mumps, and rubella (MMR) vaccine combined with a chickenpox vaccine. When the first dose of this vaccine is given to children age 12 to 23 months of age, fevers and febrile seizures (seizures associated with high fevers in young children) are more likely to occur, compared to giving the MMR and chickenpox vaccines separately, as separate injections at the same visit.
Therefore, healthcare providers generally prefer to give the two individual vaccines as separate injections for the first dose. MMRV can then be used for the second dose, if desired.
General Information on Receiving MMRVSome considerations with the MMRV vaccine to keep in mind include the following:
- As with other live vaccines, MMRV is injected subcutaneously (just under the skin), preferably on the upper arm.
- Children can be vaccinated if they have a minor illness, such as the common cold. However, the vaccine should be postponed if the individual is moderately or severely ill.
- If you are unsure about anything related to your child's MMRV dosage, please talk with your healthcare provider, nurse, or pharmacist.