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Recalls & Warnings
ConsumerLab.com is keeping you informed with current product recalls and warnings.
Latest Posted April 23, 2025
FDA Warns Consumers Not to Use ADVANCED KING Joint Supplement
On February 10, 2025, the FDA warned consumers not to purchase or use the joint pain supplement ADVANCED KING (Naturista Store LLC), because FDA analysis confirmed the product contains dexamethasone, diclofenac, and methocarbamol. These drugs are not listed on the product label, and not permitted in dietary supplements.
(See ConsumerLab’s Review of Joint Health Supplements for tests of related products.)
Dexamethasone is a prescription corticosteroid drug that has the potential to cause severe and serious adverse events including adrenal suppression, a disorder in which the adrenal glands do not produce enough hormones, and other adverse events, which can lead to death. Depending on the dose, these adverse events may be severe and even life threatening. Sudden discontinuation of dexamethasone can also cause potentially dangerous withdrawal symptoms.
Diclofenac is a prescription non-steroidal anti-inflammatory drug (NSAID) that can cause serious cardiovascular events such as heart attack or stroke, as well as bleeding, ulceration, and fatal tears of the stomach and intestines, or liver toxicity. Diclofenac may also interact with other medications and significantly increase the risk of adverse events.
Methocarbamol is a prescription muscle relaxant that can impair a person’s ability to fight infections and can cause dizziness, low blood pressure and sedation.
ADVANCED KING was sold online and possibly in some retail stores.
The FDA warned that abruptly stopping this supplement can cause withdrawal symptoms and that consumers taking the product should immediately consult with their health care professional to safely discontinue use.
The FDA issued a Warning Letter to Naturista LLC in March 2024 regarding the presence of drugs in ADVANCED KING and also issued a warning to consumers at that time.
For more information, use the links below.
Consumer Alert: ADVANCE KING may be harmful due to hidden drug ingredients
See related recalls and warnings:
Manufacturer of Grandma’s Herbs Kidney Warned by FDA
Don’t Buy or Use Umary and Amazy Supplements, Warns FDA
West Coast Laboratories Warned for Manufacturing, Labeling Violations
NutraCaps Labs Warned for Unsafe Ingredients and Manufacturing Violations
Report a Problem
If you have experienced an unexpected and adverse reaction to a dietary supplement, nutritional product, or generic drug, we would like to hear about it, as we may investigate the problem. Please select from one of these options:
Dietary Supplement or Nutritional Product Problem Report
If you believe that a dietary supplement (e.g., vitamin, mineral, or herbal supplement) or other nutritional product has caused an unexpected, adverse reaction, we would like to know about it. We are collecting and organizing this information and may publish it. We might test the product in the future. You may also want to report the problem to the U.S. FDA through their Safety Reporting Portal at https://www.safetyreporting.hhs.gov.
Please complete the form below as accurately as possible. You may need to check the label on the product.
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Generic Drug Problem Report
If you believe that a generic drug has not acted like the original drug, we would like to know about it. We are collecting and organizing this information and may publish it. We might test the product in the future. You may also want to report the problem to the U.S. FDA through their MedWatch program at the FDA MedWatch website.
Please complete the form below as accurately as possible. You may need to check the label on the drug.
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Other Recent Recalls & Warnings
For information about reporting serious reactions and problems with medical products to the U.S. Food and Drug Administration through its MedWatch reporting program, please visit the FDA MedWatch website.
