[10-2-2025] FDA continues to advise consumers not to purchase or use the Kuka Flex Forte product. FDA laboratory analysis confirmed Kuka Flex Forte sold on eBay contains acetaminophen.

Acetaminophen is a medicine used to reduce pain and fever that is found in many prescription and over-the-counter (OTC) drugs. Use of the Kuka Flex Forte poses a serious threat to consumers because it may result in acetaminophen overdose, especially if it is used in combination with other acetaminophen-containing products.

Acetaminophen overdose can cause liver damage (hepatoxicity), ranging in severity from abnormalities in liver function to acute liver failure, and even death. People who experience acetaminophen overdose may not seek prompt medical attention because the symptoms of liver damage can take several days to emerge, even in severe cases. Acetaminophen also may cause serious skin reactions. Symptoms may include skin reddening, rash and blisters.

[9-29-2023] The Food and Drug Administration is advising consumers not to purchase or use Kuka Flex Forte, a product promoted and sold for joint pain and arthritis on various websites, including https://botanical-be.com, and possibly in some retail stores.

FDA laboratory analysis confirmed that Kuka Flex Forte contains diclofenac not listed on the product label. Diclofenac is a non-steroidal anti-inflammatory drug (commonly referred to as NSAIDs). NSAIDs may cause increased risk of cardiovascular events, such as heart attack and stroke, as well as serious gastrointestinal damage, including bleeding, ulceration, and fatal perforation of the stomach and intestines. This hidden drug ingredient may also interact with other medications and significantly increase the risk of adverse events, particularly when consumers use multiple NSAID-containing products.

Health care professionals and consumers should report adverse events or side effects related to the use of this product to FDA’s MedWatch Safety Information and Adverse Event Reporting Program:

Note: This notification is to inform the public of products potentially marketed as dietary supplements or conventional foods with hidden drug ingredients and chemicals. These products are typically promoted for sexual enhancement, weight loss, pain relief and body building and are often represented as being “all natural.” FDA is unable to test and identify all products marketed as dietary supplements that have potentially harmful hidden ingredients. Consumers should exercise caution before purchasing any product in the above categories.

Refer to the links below for more information:

Medication Health Fraud

Tainted Arthritis/Pain Products

Dietary Supplements