💊 Chemical information
USP 31(Coccidioidin). A sterile solution containing the antigens obtained from the byproducts of mycelial growth or from the spherules of the fungus Coccidioides immitis; it contains a suitable antimicrobial. A clear, practically colourless or ambercoloured liquid. Store at 2° to 8°. Any dilutions should be stored at 2° to 8° and used within 24 hours. The expiry date is not later than 3 years (mycelial product) or 18 months (spherule-derived product) after release from the manufacturer’s cold storage.
Coccidioidin has been used as an aid to the diagnosis of coccidioidomycosis and, in conjunction with other antigens, to assess the status of cell-mediated immunity. A usual dose of 0.1 mL of a 1 in 100 dilution by intradermal (intracutaneous) injection has been used.
USP 31: Coccidioidin.
Proprietary PreparationsUSA: Spherulin.
Published April 27, 2019.