Algunos metales relativamente comunes pueden llegar a ser tóxicos para nuestro organismo. La exposición crónica y/o los niveles elevados de arsénico y/o bario en sangre o en orina se han asociado con una amplia variedad ...

Metamizole is a pain-killer drug that has been banned in some countries because of its toxicity, but it is still used in many countries due to its effective analgesic and antispasmodic properties. Although large variability ...