Description_x000D_ Packaging_x000D_ 10, 50 mg in glass bottle_x000D_ Biochem/physiol Actions_x000D_ Pimecrolimus, also known as Picrolimus, is a macrolactam ascomycin derivative that acts as an immune suppressant. It binds with high affinity to macrophilin-12 (FKBP-12) and inhibits calcineurin, a calcium-dependent phosphatase. Pimecrolimus inhibits production of pro-inflammatory cytokines by T cells and mast cells and prevents the release of inflammatory cytokines and mediators from mast cells. It has been used clinically as a treatment for eczema.