Four realgar, arsenic sulfide (As4S4) commonly known as the four, also known as yellow, gold, stone JIGUANSHI, usually orange or orange yellow powder granular solid, soft, crisp. With three orpiment, two arsenic sulfide (As2S3), cinnabar stibnite and symbiotic; heated to a certain temperature in the air can be oxidized to toxic components of arsenic trioxide, arsenic.
(1) it has anti-tumor effect and can inhibit the growth of transplanted mouse sarcoma S-180 and have a corrosive effect on the cells.
(2) after absorption, a spasm, pain in vivo have insecticidal effect of nerve. Water extract on Staphylococcus aureus, human tubercle bacillus, proteus, Pseudomonas bacteria and a variety of skin fungi had different degrees of inhibition.
(3) the intestinal absorption can cause vomiting, diarrhea, vertigo and even convulsion, and chronic poisoning can damage the physiological function of the liver and kidney.
Realgar is poisonous. In vitro test of common pyogenic cocci, intestinal pathogens, human, bovine tuberculosis, Mycobacterium smegmatis and achorion violaceum etc. common pathogenic fungi in the skin.