Zyrtec Drug Interactions

Theophylline
Theophylline can increase the level of Zyrtec in your blood, perhaps increasing your risk of Zyrtec side effects. Check with your healthcare provider before combining these two medications.
 

Final Thoughts on Drug Interactions With Zyrtec

It is possible that not all Zyrtec drug interactions were discussed in this article. Therefore, you should talk with your pharmacist or healthcare provider about any specific interactions that may apply to you.
 
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;
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