Prophylaxis of invasive Aspergillus and Candida infections in severely immunocompromized patients and treatments of oropharyngeal candidiasis.
Serum (preferred) or plasma
Red-top tube or lavender-top (EDTA) tube
Transfer separated serum or plasma to a plastic transport tube. Do not use a gel barrier tube. The use of gel-barrier tubes is not recommended due to slow absorption of the drug by the gel. Depending on the specimen volume and storage times, the decrease in drug level due to absorption may be clinically significant.
Refrigerate. Stable for 14 days at room temperature, refrigerated, or frozen.