Tacrolimus Capsules are accessible in the market as immunosuppressive drug. This range is mainly brought in use at the time of organ transplant in order to reduce the activity of the patient's immune system. Thus, the capsules help in minimizing the risk of organ rejection. Additionally, the proposed gamut is required in a topical preparation for the management of severe atopic dermatitis, refractory uveitis and bone marrow transplant. The main mode of action of Tacrolimus Capsules is that these are meant for inhibiting T-lymphocyte while binding to an intracellular protein, FKBP-12.