We contacted Reckitt, Mucinex’s manufacturer regarding ther gluten status. Mucinex does not claim to be gluten free, does not test for gluten, and cannot guarantee cross-contamination will not occur. Although some formulations may not contain gluten ingredients, none are confirmed gluten free.

💡 Want to check any medication yourself? Try our new Instant Med Search Tool

Quick Rundown

  • The manufacturer does not certify Mucinex products as gluten free.

  • While some products may not contain gluten ingredients, they do not guarantee gluten free status.

  • Mucinex manufacturers do not test for gluten.

  • Cross-contamination is possible since other products in the same facilities may contain gluten.

What The Manufacturer Stated:

“In response to your inquiry, while we may offer some Mucinex® products that do not contain gluten or gluten-derived ingredients we do not certify any Mucinex® product to be gluten-free.

We offer a wide range of Mucinex® products and want to ensure that we provide our consumers with the most accurate information. In order to accomplish this we would ask any consumer to contact us directly.

Generally, we are unable to guarantee that other products manufactured in the factory do not contain a source of gluten. However, all manufacturing equipment is thoroughly washed and cleaned down in line with Good Manufacturing Practices. We do not specifically test for the presence of gluten and therefore do not certify our products to be ‘gluten-free.”

Reckitt Consumer Care

A Gluten Free Mucinex DM Alternative:

Try Genexa Daytime Cough + Nighttime Severe Cold & Flu Combo Pack. They are certified gluten free by GFCO. You should be able to find them at Walmart, but you can check their site to identify retailers as well. Always verify on the current product box or bottle as formulas can change.

It’s Here! Your New Med Search Tool

Our new instant medication search is now live!

With just a few clicks you can:

  • 🔍 Search any medication by its NDC code

  • Instantly see its gluten status and link to its ingredients via DailyMed

  • 💳 Choose how you search: unlimited searches for Pro newsletter subscribers or pay-as-you-go at just $0.99/search

No more guessing, no more digging. Just type in the NDC code and know right away if your medication is safe from gluten.

Medical Disclaimer: This email is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Medication formulas and inactive ingredients may change. Always confirm with your pharmacist or prescriber before taking any medication.

Mucinex® is a registered trademark of Reckitt. AllerGuard is not affiliated with or endorsed by Reckitt.

Keep Reading

No posts found