ChEBI

An agent that increases the frequency of mutations above the normal background level, usually by interacting directly with DNA and causing it damage, including base substitution.

A substance used in the prophylaxis or therapy of infectious diseases.

A substance used locally on humans and other animals to destroy harmful microorganisms or to inhibit their activity (cf. disinfectants, which destroy microorganisms found on non-living objects, and antibiotics, which can be transported through the lymphatic system to destroy bacteria within the body).