Allegra-D Drug Interactions

When medications such as beta blockers or ketoconazole are taken together with Allegra-D, drug interactions may potentially occur. These interactions can cause your body to metabolize the medicines differently than intended, significantly increase Allegra-D levels in your body, or reduce the effectiveness of the drugs. Other medications that may cause potential Allegra-D drug interactions include erythromycin, mecamylamine, digoxin, and antacids containing aluminum and magnesium.

  

An Overview of Allegra-D Drug Interactions

Allegra-D® (fexofenadine and pseudoephedrine) has a number of other medicines that it can potentially interact with. Some possible Allegra-D drug interactions can include:
 

 

Allegra-D Interactions Explained

 

Ketoconazole (Nizoral)
Taking ketoconazole and Allegra-D together may cause your body to metabolize the medicines differently than intended. This can result in an increased amount of Allegra-D in your body. If you are taking these medications together, your healthcare provider may choose to monitor you more closely or make necessary dosing adjustments.
(Allegra-D Drug Interactions Continued: Page 2)
Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;