Ethidium bromide is a suspected mutagen and is irritating to the eyes, skin, mucous membranes and upper respiratory tract. The health effects of ethidium bromide exposure have not been thoroughly investigated. It is suspected to be carcinogenic and teratogenic because of its mutagenicity, although there is no direct evidence of either effect. The toxic effects of ethidium bromide may be experienced if swallowed, inhaled or absorbed through the skin. However, ethidium bromide is not easily absorbed through the skin because of positive charge and bulky structure.

Ethidium bromide is thought to act as a mutagen because it intercalates into double stranded DNA, thereby deforming the molecule. This is believed to block or trip biological processes occurring on DNA, like DNA replication and transcription.

Oh no…………. I used it for DNA experiment today