Is It Safe To Take Zyrtec (Cetirizine) With Magnesium Supplements?

In our latest question and answer, the pharmacist discusses the combined use of cetirizine and magnesium supplements.


Are there any interaction problems between cetirizine and magnesium supplements?

Asked by pete On Jun 17, 2024

Answered by
Medical Content Reviewed By HelloPharmacist Staff

Published Jun 20, 2024
Last updated Jul 18, 2024


Thanks for reaching out and great question!

Magnesium does interact with many different drugs, and we have quite a few interactions listed for magnesium in our drug-herbal interaction checker.

Most interactions with magnesium involve it reducing the absorption of other drugs (such as this interaction we have listed with ciprofloxacin), but it can interact with drugs via other mechanisms as well.

Fortunately, there is no known interaction between magnesium and Zyrtec (cetirizine). They are considered safe to take together. We discuss the combination of cetirizine and magnesium further on its own detail page (Magnesium - Cetirizine Interaction Details | HelloPharmacist).

I do want to point out that this answer is regarding magnesium supplements that only contain magnesium. If the supplement in question contains more ingredients than just magnesium, please be sure to consider those as well.

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Dr. Brian Staiger, PharmD

Dr. Brian has been practicing pharmacy for over 13 years and has wide-ranging experiences in many different areas of the profession. From retail, clinical, program development, and administrative responsibilities, he's your knowledgeable and go-to source for all your pharmacy and medication-related questions! Dr. Brian Staiger also has herbalist training and educational certificates in the field of medical ethnobotany. Feel free to send him an email at [email protected]! You can also connect with Dr. Brian Staiger on LinkedIn.

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