Toxicology and Poisons
A poison is a substance that is capable of causing illness or death to the user. These are very dangerous substances, but they can come in various forms. Paracelsus (1493-1541) once said that "All substances are poisons; there is none which is not a poison. The right dose differentiates a poison and a remedy." This quote shows that even simple prescription drugs, such as tylenol or advil, can be overused and turned into a poison.
Types of Posions
Poisons are very hard to detect sometimes because of their effects on the bodies and the amount of time the poisons take to take over the body. Some poisons, like thallium, for example take weeks and maybe months to take over the body of the victim and can not be detected easily. Symptoms however, are evidence of these poisons. Thallium causes severe pain in the legs and the arms, and effects the heart. The victim will experience vomiting, swelling, and diarrhea. Dimethylmercury is another common killer that is man-made and a slow activating one. It is detected through blood tests and can cause the victim's organs to slowly stop working one at a time.