Tacrolyst 0.5mg Capsule contains the active substance Tacrolimus. It is an immunosuppressant that belongs to the class of medications called calcineurin inhibitors. This capsule is used along with other medications to prevent organ transplant rejection in people receiving liver, kidney, heart, or other transplants. It is also indicated to control your body’s immune response, enabling it to accept the transplanted organ. Do not take this Tacrolyst 0.5mg Capsule if you are allergic to tacrolimus or any of the other ingredients of this medicine.  Report your physician if you are allergic to any antibiotic group. Inform your doctor if you have or had a  liver or heart disease before initiating the treatment. Notify your physician immediately if you develop fever, bruising under the skin (which may appear as red dots), unexplained tiredness, confusion, yellowing of the skin or eyes, reduced urine output, vision loss, and seizures after taking this medicine. Limit exposure to sunlight and UV light while consuming Tacrolyst 0.5mg Capsule by wearing appropriate protective clothing and sunscreen with a high sun protection factor. This is because of the potential risk of malignant skin changes with immunosuppressive therapy. This medicine may cause diarrhea; inform your physician if you have diarrhea for over a day. If you need to receive any vaccinations, consult your doctor once before receiving them.