Seroquel XR Side Effects

Although most people do not experience any problems while taking Seroquel XR, side effects may still occur. Common side effects of Seroquel XR can include a calm or sleepy feeling, a dry mouth, or dizziness. In most cases, the side effects of the drug are minor and easily treated. However, you should contact your healthcare provider right away if you develop more serious Seroquel XR side effects, such as seizures, suicidal thoughts, or signs of an allergic reaction.

 

An Introduction to Seroquel XR Side Effects

As with any medicine, there are possible side effects with Seroquel XR® (quetiapine XR). However, not everyone who takes the medication will experience side effects. In fact, most people tolerate it quite well. When side effects do occur, in most cases, they are minor and either require no treatment or are easily treated by you or your healthcare provider.
 
(This article covers many, but not all, of the possible side effects with Seroquel XR. Your healthcare provider can discuss a more complete list of Seroquel XR side effects with you.)
 

Common Seroquel XR Side Effects

Seroquel XR 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 then compared to the side effects that occur in another group of people not taking the medicine. As a result, 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 Seroquel XR side effects included:
 
  • A calm or sleepy feeling (known medically as sedation) -- in up to 13 percent of people
  • Dry mouth (see Seroquel XR and Dry Mouth) -- up to 12 percent
  • Drowsiness -- up to 12 percent
  • Dizziness -- up to 10 percent
  • Constipation -- up to 6 percent
  • Indigestion or heartburn -- up to 5 percent.
 
(Seroquel XR Side Effects Continued: Page 2)
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;