Copper complex is a toxic copper salt. After being absorbed by human body, its toxicity is manifested by inhibiting the sulfhydryl group needed for enzyme activity, inhibiting the activity of glucose 6- phosphate dehydrogenase (G-6-PD) in red blood cells and reducing the activity of glutathione reductase. Cell membrane is damaged, which damages cells and organelles, showing hemolysis, oliguria, shock, central nervous system inhibition and even death.

Although copper and its compounds are not as toxic to human body as some other metals such as lead and mercury. The patina on the metal frame of glasses can also cause skin allergy.

In addition, the liver is the main damaged organ of pericardium, and excessive intake leads to turbidity, swelling and necrosis of liver cells.

Traditional Chinese medicine believes that the toxicity of patina is small, and it enters the liver and gallbladder meridian, which is consistent with the pharmacological experiment of damaging liver cells mentioned above. Weakness and blood deficiency should be avoided Excessive dosage can cause severe vomiting, abdominal pain, bloody dysentery, spasm and other symptoms, and can cause collapse in severe cases.

Other compatibility is not contraindicated.

Have a plenty of searching, have a plenty of reading summary.

Everything that can be copied has gone up.

There is a paper devoted to the problem of patina, but it is a pity that it is not in school and you have to pay outside to get it.