10 Day Forecast may be harmful due to hidden ingredients
[10/15/2026] The Food and Drug Administration is advising consumers not to purchase or use 10 Day Forecast, a product promoted and sold for sexual enhancement on various websites, including ebay.com, and possibly in some retail stores.
FDA laboratory analysis confirmed that 10 Day Forecast contains sildenafil and acetaminophen not listed on the product label.
Sildenafil is the active ingredient in the FDA-approved prescription drug Viagra, used to treat erectile dysfunction. It may interact with nitrates found in some prescription drugs such as nitroglycerin and may lower blood pressure to dangerous levels. This is especially concerning for people with diabetes, high blood pressure, high cholesterol or heart disease, who commonly take nitrate-containing medications.
Acetaminophen is used to temporarily relieve pain and reduce fever. Taking too much acetaminophen can cause liver damage, ranging from mild liver problems to complete liver failure and death. Symptoms may not show for several days, even when the damage is severe, and this can cause people to wait too long before seeking medical help.
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:
- Complete and submit the report online MedWatch Online Voluntary Reporting Form, or
- Download and complete the form, then submit it via fax at 1-800-FDA-0178.
This notification is to inform the public of products potentially marketed as dietary supplements or conventional foods with hidden ingredients. 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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