Diseases Home > Tdap Vaccine

A type of vaccine, Tdap (Adacel®, Boostrix®) is used to help prevent diphtheria, tetanus, and pertussis (whooping cough) in adults and adolescents 10 to 64 years of age (for Adacel) or age 10 and older (for Boostrix). It is given as a single, one-time injection. After an individual receives the Tdap vaccine, all future boosters should be given as the Td (tetanus and diphtheria) vaccine.
Although there is only one standard recommended dosage for this vaccine, Tdap may be given at different times, depending on your age and vaccination history. Because there are several different similar vaccines that are given during childhood and adolescence, it can be confusing to know when exactly (or even if) the Tdap vaccine should be given.
As with any vaccine, Tdap may cause side effects. If side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider. Some of the most common side effects include, but are not limited to:
(Click Tdap for more information on when and how often Tdap should be administered, to find out what you should discuss with your healthcare provider before getting vaccinated, and for details on how this vaccine works.)
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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