|Poison can be defined as a substance which causes adverse reaction in human or animal systems when introduced into body through various ways accidental or deliberate methods. These substances will be capable to bring dreadful effects in living systems. The major poisons are venoms, chemicals, bacterial toxins, toxic gases etc. The various ways of poisoning includes ingestion, inhalation, injection, or absorption. The effect of poisoning depends on the dosage and time of exposure.
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