Research the causes of these more general types of symptom: 1  Stool symptoms (2508 causes). 2  Constipation (726 causes). 3  Digestive symptoms (5299 causes). 4  Bowel problems (2509 causes). 5  Bowel movements (2383 causes). 6  Intestinal symptoms (5299 causes). 7  Lower abdominal symptoms (3048 causes). 8  Abdominal symptoms (5930 causes).
Some poisons are also toxins, which is any poison produced by animals, vegetables or bacterium, such as the bacterial proteins that cause tetanus and botulism. A distinction between the two terms is not always observed, even among scientists. The derivative forms toxic and poisonous are synonymous.
Toxic Substance. Any substance that can cause injury or illness, or which is suspected of being able to cause injury or illness under some conditions. Toxicity. A relative property of a chemical agent that refers to a harmful effect on some biological mechanism and the conditions under which this effect occurs.