Let's take a minute to talk about your medication.  

This is Boostrix. It is a Tdap vaccine. It helps protect against three serious diseases: tetanus, diphtheria, and pertussis or 'whooping cough.' These diseases are caused by bacteria. They can cause serious harm or death.

Tdap is usually given to children at age 11 or 12. It is sometimes given to adults. It is given to pregnant women to protect their baby from pertussis. 

It is given as a shot with a very small needle. It is given into the muscle, usually in the upper arm.
Most people tolerate this vaccine well. Common side effects include reactions where the shot was given, like pain, redness, swelling, or tenderness. Other side effects include a headache, fever, or chills. You could have nausea, stomachache, diarrhea, or feel achy or tired. These effects are normal if they are mild and should go away. If you are concerned about these or other effects, please talk to your doctor or pharmacist.

As with any vaccine, rare but more serious side effects could occur. These include fainting, an allergic reaction, or difficulty moving the arm where the shot was given. Get medical help right away if you notice changes that concern you, like a very high fever, unusual behavior, swelling in the face and throat, problems breathing, or dizziness. For more information, be sure to read the Vaccine Information Sheet.

For best results with Boostrix, ask if you will need another vaccine in the future for added protection from these serious diseases.