An<unk>  is an<unk>  agent that attaches an alkyl group to DNA.
Since cancer cells generally proliferate unrestrictively more than do healthy cells they are more sensitive to DNA damage, and<unk>  agents are used clinically to treat a variety of tumours.
Alkylating antineoplastic agent
Immunosuppressive drug
Antitumorigenic herbs
Nephrotoxic drugs
Hemostatic agent
Ionizing radiation
Anti-obesity medication
Antiviral drug