Marketed under Clolar or Evoltra, Clofarabine is an anti-cancer drug that hinders the growth and spread of cancer cells in the body. It is also used to “treat acute lymphoblastic leukemia in children and young adults up to 21 years old”. According to drugs.com, using Clofarabine can result in life-threatening side effects such as severe skin rash, serious infection, internal bleeding, and liver or kidney damage. Therefore, you should call your doctor right away if you have: “fever, chills, unusual bleeding or bruising, urination problems, stomach pain or swelling, loss of appetite, bloody diarrhea, coughing up blood, sudden numbness or severe headache, problems with vision or balance, or sudden swelling in your arms, legs and other parts of the body”. Bear in mind that using birth control is highly recommended before taking Clofarabine, considering this medication could actually harm the fetus. However, if you’re already pregnant, you should tell your doctor about it in order for them to prescribe a safer alternative for you. Also don’t forget to tell your doctor if you are breastfeeding to get their professional advice on whether or not you can use Clofarabine.