An Introduction to Engerix-B Side Effects
As with all vaccines, side effects are possible with
Engerix-B® (
hepatitis B vaccine). However, not everyone who receives the vaccination will have problems. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or are treated easily by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with this product. Your healthcare provider can discuss a more complete list of Engerix-B side effects with you.)
Common Side Effects of Engerix-B
Engerix-B has been studied thoroughly in clinical trials.
In these studies, the side effects that occurred in a group of people given Engerix-B were documented and compared to those that occurred in a similar group of people given a placebo (an injection with no active ingredient). This way, it is possible to see what side effects occurred, how often they appeared, and how they compare to the group receiving the placebo.
In these studies, the most common side effects of Engerix-B included:
- Injection site soreness -- in up to 22 percent of people
- Fatigue -- up to 14 percent.
Other common side effects (occurring in 1 to 10 percent of people) included:
- Dizziness
- Headaches
- Fever
- Injection site redness, swelling, or lump.
