An<unk>  is an<unk>  agent used in cancer treatment that attaches an alkyl group (CnH2n+1) to DNA. The alkyl group is attached to the guanine base of DNA, at the number 7 nitrogen atom of the purine ring. Since cancer cells, in general, proliferate faster and with less error-correcting than healthy cells, cancer cells are more sensitive to DNA damage—such as being alkylated.<unk>  agents are used to treat several cancers. However, they are also toxic to normal cells (cytotoxic), particularly cells that divide frequently, such as those in the gastrointestinal tract, bone marrow, testicles and ovaries, which can cause loss of fertility. Most of the<unk>  agents are also carcinogenic.
Alkylating antineoplastic agent
Immunosuppressive drug
Monoamine-depleting agent
Neuromuscular-blocking drug
Disease-modifying antirheumatic drug
Antihypotensive agent
Endocrine disruptor
Serotonin releasing agent