The standard dose for Comvax is a total of three injections, with one given at 2, 4, and 12 to 15 months of age. These are the ideal ages for the injections. However, your child's healthcare provider may recommend a slightly different schedule, especially if your child is starting the injections at an older age.
Comvax Dosage: An IntroductionThere is only one standard dose for Comvax® (Hib vaccine and hepatitis B vaccine), although there may be some variability in the exact vaccination schedule your healthcare provider recommends.
Ideal Comvax ScheduleThe ideal standard Comvax dosage is three injections (each 0.5 mL injected into a muscle) at 2, 4, and 12 to 15 months of age.
Comvax is approved for use in children 6 weeks to 15 months of age. It should be noted that the Centers for Disease Control (CDC) recommends that all infants receive a hepatitis B vaccine shortly after birth, preferably while still in the hospital. This is especially important for infants born to mothers with hepatitis B.
Comvax cannot be used for this early vaccination. However, the full recommended series (all three injections) can still be given at the usual times, even if an infant gets a hepatitis B vaccine at birth. This means the infant will get one more dosage of hepatitis B vaccine than necessary.
Other Vaccine SchedulesYour child's healthcare provider may recommend a slightly different vaccination schedule, particularly if your child is 11 months or older at the first injection. When Comvax is started at an older age, fewer injections may be necessary. However, such "delayed" vaccination schedules leave children unprotected during early infancy and are generally not recommended.