Orencia Side Effects
Infections, dizziness, back pain, and headaches are some of the most common side effects reported with Orencia. However, side effects are usually minor and often don't require treatment. Some side effects of Orencia require immediate medical attention, such as any signs of an allergic reaction, difficulty breathing, or cough.
As with any medicine, side effects are possible with Orencia® (abatacept); however, not everyone who takes the medication will experience side effects. 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 can easily be treated by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with Orencia. Your healthcare provider can discuss a more complete list of Orencia side effects with you.)
Orencia has been studied thoroughly in clinical trials. In these studies, the side effects that occur in a group of people taking the drug are documented and are then compared to side effects that occur in another group of people not taking the medicine. This way, it is possible to see what side effects occur, how often they appear, and how they compare to the group not taking the medicine.
In these studies, the most common side effects of Orencia included:
- Infections -- in up to 54 percent of people
- Headaches -- up to 18 percent
- Dizziness -- up to 9 percent
- Cough -- up to 8 percent
- Back pain -- up to 7 percent
- High blood pressure (hypertension) -- up to 7 percent
- Indigestion or heartburn -- up to 6 percent
- Pain in the extremities -- up to 3 percent.