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# 42 Warning Letters on Covid Scam Products
- URL: https://www.fdaweb.com/42-warning-letters-on-covid-scam-products/
- Published: 2020-05-07T12:00:00.000Z
- Updated: 2026-09-14T16:14:12.000Z
- Author: David McFarland
- Tags: Drugs, #legacy-id-D5146740

FDA says that as of 5/7 it has issued 42 Warning Letters to companies making bogus Covid-19 claims, including a seller of fraudulent chlorine dioxide products, equivalent to industrial bleach, frequently referred to as Miracle Mineral Solution or MMS. An agency scam [update](https://www.fda.gov/news-events/press-announcements/coronavirus-covid-19-update-fda-continues-combat-fraudulent-covid-19-medical-products?ref=fdaweb.com) says that after the MMS seller refused to take corrective action, FDA obtained a preliminary injunction from a federal court requiring the seller to immediately stop distributing its unproven and potentially dangerous product.

The update also says that FDA’s Operation Quack Hack has discovered hundreds of such products including fraudulent drugs, testing kits, and personal protective equipment sold online with unproven claims. “We continue to work with online marketplaces, domain name registrars, payment processors, and social media Web sites to remove from their platforms products that fraudulently claim to mitigate, prevent, treat, diagnose, or cure Covid-19 and to keep these products from reappearing under different names,” FDA says. “At this time FDA has sent hundreds of abuse complaints to domain name registrars and Internet marketplaces, who in most instances have voluntarily removed the identified postings. We will continue to monitor the online ecosystem for fraudulent products peddled by bad actors seeking to profit from this global pandemic.”