Cinnabar is a mercury compound, which is slightly toxic. Cinnabar once encountered fire and heat easily precipitated metal mercury (mercury), the toxicity is greatly increased, that will cause poisoning. Now more into the pills and dispersants, when you can take warm water, or juice, do not decoction, stew. 1, serving method improper ancient medical texts contain vermilion and pig heart stew or stewed pills to take the therapy, now Guangzhou folk also have similar serving method. Cinnabar stew, decoction can increase toxicity, leading to chronic poisoning, because it is a chronic process may not be noticed. 2, take too long vermilion heavy sedative effect is good, but should not be long, more, to avoid accumulation of poisoning. Long-term consumption of conventional amounts of vermilion and made of pills, bulk, the body can be subjected to low concentrations of mercury and chronic poisoning, mainly brain damage, kidney damage, muscle tremors, and visible gum swelling and pain, inflammation of the gums on the dark blue line of magnetized mercury (mercury lines). 3.Overdose Excessive use can lead to acute poisoning or chronic poisoning. Acute poisoning can be seen as vomiting, abdominal pain, bloody stools, muscle tremors, little urination, urinary closure, convulsions, coma, drop in blood pressure, acute renal failure and death.