From GlaxoSmithKline, Research Triangle Park, N.C., (919) 483-2100, comes Boostrix (tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis vaccine, adsorbed [Tdap]). The product is indicated as a booster vaccine to be given as a single dose to patients aged 10 to 18. This booster adds a pertussis component to the tetanus/diphtheria booster routinely administered to teens.