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Drug Interactions With Levocetirizine

People taking ritonavir or theophylline may experience drug interactions with levocetirizine. These interactions may affect how levocetirizine is metabolized by the body. As a result, you may be at an increased risk of developing levocetirizine-related side effects. If drug interactions with levocetirizine are a concern, your healthcare provider may need to adjust your dosage of the medications.

Drug Interactions With Levocetirizine: An Overview

Levocetirizine dihydrochloride (Xyzal®) can potentially interact with a few other medications. Some of the medicines that may lead to drug interactions with levocetirizine include:

Levocetirizine Interactions Explained

The following sections explain in detail the potentially negative interactions that can occur when levocetirizine is combined with any of the drugs listed above.
Ritonavir (Norvir)
Ritonavir can increase the level of levocetirizine in your blood, possibly increasing your risk of side effects of levocetirizine. Check with your healthcare provider before taking these medications together, as you may need a lower levocetirizine dose.
Theophylline (Uniphyl, Theocron, TheoCap, Theo-24, Elixophyllin)
Theophylline can slightly increase the level of levocetirizine in your blood. It is unknown if this is likely to cause any problems, so let your healthcare provider know if you experience any problems when taking these medications together.

Final Thoughts on Drug Interactions With Levocetirizine

It is possible that not all drug interactions with levocetirizine were discussed in this article. Therefore, you should talk with your pharmacist or healthcare provider about any specific drug interactions that may apply to you.
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Levocetirizine Dihydrochloride

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