text: Fluciclovine (F), also known as anti-1-amino-3-18F-fluorocyclobutane-1-carboxylic acid (anti-3[18F] FACBC), or as Axumin (brand name), is a diagnostic agent indicated for positron emission tomography (PET) imaging in men with suspected prostate cancer recurrence based on elevated prostate specific antigen (PSA) levels.