Makers of household cleaners have taken an unusual step, according to Reuters.
Companies like Lysol and Clorox are urging people not to drink or inject their products.
This comes after U.S. President Trump suggested researchers try using them to cure COVID-19 patients.
Trump's idea was to inject bleach into the lungs of patients since bleach kills the virus on surfaces.
Reckitt Benckiser, the UK-based maker of Lysol and Dettol, issued the first warning.