Thioplan Injection is used in the treatment of cancers of the brain, breast, lungs, and ovaries. It is used in combination with other cancer medicine during hematopoietic progenitor cell transplantation (HPCT). It may be also used to treat other conditions, as determined by the doctor. Thioplan Injection is generally given under the supervision of a healthcare professional. Your doctor will decide the dose and duration of the treatment based on the severity of your condition and what you are being treated for. It may take several weeks or months for you to see or feel the benefits but do not stop getting the injection unless your doctor tells you to. The most common side effects of this medicine include decreased white blood count, anemia, low blood platelets, increased liver enzymes, increased bilirubin in the blood, mucosal inflammation, hemorrhage, diarrhea, blood in urine, and rash. This medicine may reduce the number of blood cells in your blood, thereby, increasing the susceptibility to infections. Regular blood tests are required to check your blood cells along with kidneys, liver, and heart function during treatment with this medicine. Before taking it, tell your doctor if you have bleeding, liver, or kidney problems or are taking any medicines to treat infections. Many other medicines can affect, or be affected by, this medicine so let your doctor know all medications you are using. This medicine is not recommended during pregnancy or while breastfeeding. The use of effective contraception by both males and females during treatment is important to avoid pregnancy.