At-home COVID-19 tests authorized by the Food and Drug Administration can potentially be harmful, the agency said in a press release Friday.

“Incorrect use of FDA authorized at-home COVID-19 tests can cause harm,” it explained. “The liquid solution in some tests may contain chemicals like sodium azide, which may cause harm if swallowed or if it comes in contact with skin, nose, mouth, or eyes.”

The FDA also released a set of suggestions to encourage safety, which includes making sure all parts of the tests kits are inaccessible to pets and children, and ensuring the help of medical experts if adverse reactions occur, such as skin irritation.

The agency also clarified that it has been informed of injuries due to misuse of tests, such as unintentionally getting the liquid solution in their eyes, or children ingesting pieces of the test.

“The FDA will continue to closely monitor safety issues around at-home COVID-19 tests and is committed to protecting public health and assuring the safe use of these tests," it concluded. "The FDA will keep the public informed if significant new information becomes available.”