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Symptoms or side effects may occur due to an allergy or sensitivity to one of the flavor ingredients in a Core. These reactions can begin mildly but may escalate to more serious issues rapidly.If you experience any of the following symptoms, discontinue use of F&#xDC;M immediately and consult your healthcare provider.<h4 id="symptoms-to-watch-out-for">Symptoms to Watch Out For</h4>&#x2022; Trouble breathing&#x2022;&#xA0;Hives&#x2022;&#xA0;Tightness of the throat&#x2022;&#xA0;Abdominal pain&#x2022;&#xA0;Nausea and vomiting&#x2022;&#xA0;Diarrhea&#x2022;&#xA0;Dizziness or fainting&#x2022;&#xA0;Low blood pressure&#x2022;&#xA0;Fast heartbeat Related articles:<a href="https://fum-support.gorgias.help/en-US/are-there-health-reasons-(contraindications)-not-to-use-fum-86566">Are There Health Reasons (Contraindications) Not to Use F&#xDC;M?</a><a href="https://fum-support.gorgias.help/en-US/why-am-i-experiencing-a-negative-reaction-when-i-use-my-fum-25788">Why Am I Experiencing a Negative Reaction When I Use My F&#xDC;M?</a>

Symptoms or side effects may occur due to an allergy or sensitivity to one of the flavor ingredients in a Core. These reactions can begin mildly but may escalate to more serious issues rapidly. If you experience any of the following symptoms, discont

Can Using FÜM Cause Side Effects?

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Why Am I Experiencing a Negative Reaction When I Use My FÜM?

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How Should I Breathe When Using My FÜM?

Storing Your FÜM & Cores

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Children & Pregnancy Safety

Do Cores Contain Any Chemicals?

Are Polyester Cores Safe?

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Are There Health Reasons (Contraindications) Not to Use FÜM?

Do FÜM Cores Need to Be Lit?

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Cleaning Your FÜM

Why Are My Cores Turning Black/Getting Dirty?

Are There Any Age Restrictions for FÜM?

Why Are Some Core Flavors Weak?

Are Barrels Complete FÜM Devices? Do They Include a Mouthpiece?

Why Do My Cores Look Half-Filled?

What Are the Components of a FÜM Device?

Solano - Silver Stainless Steel vs. Onyx Black Airflow Valve

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Updated Cores Packaging!

Why Is There a Gap Between the Barrel and the Mouthpiece of My FÜM?

Re-placing the Core Spring if it Falls Out

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How to Insert a Core into Your FÜM Device

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Are There More Core Flavors Coming?

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Why Are All My Cores Colored Black?

What Is in FÜM Cores?

Are FÜM Products Certified Kosher, Halal or Vegan?

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Symptoms to Watch Out For

Can Using FÜM Cause Side Effects?Updated a month ago

Symptoms to Watch Out For