12/19/12 The U.S. Food and Drug Administration is warning consumers that Reumofan Plus – a potentially harmful product billed as “100% natural” – is being relabeled and sold under the name "WOW."

In August 2012, the FDA issued its second warning to consumers that Reumofan Plus and Reumofan Plus Premium contained active prescription-drug ingredients not listed on the label.

These active ingredients include diclofenac (a prescription anti-inflammatory), methocarbamol (a muscle relaxant) and dexamethasone (a corticosteroid). The chief concern is that corticosteroids, if stopped abruptly, could cause harmful withdrawal symptoms. Another worry is that these active ingredients could interact with medications a consumer is already taking.

FDA laboratory analyses confirmed that WOW contains the same prescription drug ingredients that were found in Reumofan Plus.

The FDA advises consumers currently taking Reumofan Plus and/or WOW (and those who have recently stopped) to consult with their heath care provider.

Consumers and their health care providers are being encouraged to report any adverse events related to the products to the FDA’s MedWatch Safety Information and Adverse Event Reporting Program.