[10-17-2025] The Food and Drug Administration is advising consumers not to purchase or use Black Thai Honey, a product promoted and sold for male sexual enhancement on various websites, including www.honeypacks.com, and possibly in some retail stores.

FDA laboratory analysis confirmed that Black Thai Honey contains sildenafil, tadalafil and diclofenac not listed on the product label.

Sildenafil and tadalafil are the active ingredients in the FDA-approved prescription drugs Viagra and Cialis, respectively, used to treat erectile dysfunction. FDA approval of Viagra and Cialis is restricted to use under the supervision of a licensed health care professional. These undeclared ingredients may interact with nitrates found in some prescription drugs, such as nitroglycerin, and may lower blood pressure to dangerous levels. People with diabetes, high blood pressure, high cholesterol or heart disease often take nitrates.

Diclofenac is a non-steroidal anti-inflammatory drug (NSAID). 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:

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. Consumers should exercise caution before purchasing these products.

FDA is unable to test and identify all products marketed as dietary supplements that have potentially harmful hidden ingredients.

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