This product is a diagnostic drug and a dye. It cannot dye normal corneal epithelium, but can dye damaged corneal epithelium green, thus showing corneal damage, ulcers and other lesions. When this product flows through small blood vessels, it can pass through thinner blood vessel walls and mucosa under ultraviolet or blue light excitation to show green fluorescence, thus showing the course and morphology of small blood vessels, etc., which can be used for fundus angiography and circulation time measurement. This product can hardly pass through the blood-brain barrier, but its content in cerebrospinal fluid increases in tuberculous meningitis. Determining the content of this product in cerebrospinal fluid after intramuscular injection is helpful for the diagnosis and differential diagnosis of tuberculous meningitis.

After 0.5-1g of intramuscular injection in adults, the content in cerebrospinal fluid is less than 0.00002% 2 hours later. After intravenous injection, about 60% is bound to plasma albumin. This product does not participate in metabolism in the body, nor is it firmly bound to tissues. It is mainly excreted from urine through the kidneys, and a small part is excreted from bile through the liver, and is basically excreted from the body within 24 hours.

This product is a sterilized aqueous solution made by extracting Sarcandra scabra