Side Effects of Fexofenadine and Pseudoephedrine

Common side effects of fexofenadine and pseudoephedrine may include insomnia, headache, dry mouth, and indigestion. Up to 3.7 percent of patients in previous clinical studies discontinued their medication because of side effects. There are also a number of more serious fexofenadine and pseudoephedrine side effects that may occur, including difficulty breathing, allergic reaction, or unexplained rash.

 

Side Effects of Fexofenadine and Pseudoephedrine: An Introduction

As with any medicine, there are possible side effects with fexofenadine and pseudoephedrine (Allegra-D®). However, not everyone who takes medication will have side effects. In fact, most people tolerate fexofenadine and pseudoephedrine well. When side effects do occur, they are generally minor and either require no treatment or can easily be treated by you or your healthcare provider. In previous research studies, up to 3.7 percent of people stopped taking fexofenadine and pseudoephedrine because of side effects.
 
(The fexofenadine and pseudoephedrine side effects discussed below are not a complete list of side effects reported with the medicine. Your healthcare provider can discuss a more complete list of side effects with you.)
 

Common Fexofenadine and Pseudoephedrine Side Effects

Fexofenadine and pseudoephedrine has been studied in clinical trials. In these studies, side effects are always documented and compared to those that occur in a similar 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 seen in people taking fexofenadine and pseudoephedrine included:
 
Other side effects that occurred in more than 2 percent of people included, but were not limited to:
 
(Side Effects of Fexofenadine and Pseudoephedrine Continued: Page 2)
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;