What would happen if you overdose on the hepa b vaccine?

Nothing significant: The vaccine is a non living preparation of laboratory grown antigen that is usually given in the least amount that will give the benefit to the immune system.Extra antigen has no significant effect short of the extra short term muscle irritation that always happens with a vaccination.

You Can Not Overdose: There is no way you can overdose on Hep B Vaccine.As it is given as a single dose already in a syringe and in the right amount and only given In Doctor's office or clinic