Carcinogen ic s

There are a number of suspected and proven cancer-causing chemicals, or external environmental factors, which account for most of the causes of cancer (about 80-90%), e.g., the tar present in cigarette smoke. There are also a number of internal factors 

Carcinogens are considered as a special class of chronic poisons and hence the subject of a specialised field of toxicology. 

Because of the different factors involved, not everyone necessarily responds in the same way to the same external and internal factors, as regards the cancer issue. 

Carcinogens, such as organic and inorganic chemicals with various biological actions, can act similarly to other toxic substances, with similar dose-response relationships but several distinct differences. 

There are also claims that some anti-cancer medicines can themselves induce carcinomatosis [7]. 

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Common Acute Poisons Common Chronic Poisons Common Carcinogen(ic)s... 

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