Do not use Vinbicel Injection 1's if you are allergic to any of its components, if you are pregnant, think you might be pregnant or breastfeeding, if you have low white blood cell count, have/had a severe infection within two weeks, have thrombocytopenia (low platelet count), or if you have taken or plan to receive yellow fever vaccination. Inform the doctor if you have a history of heart attack, severe chest pain, liver problems, and signs or symptoms of infection. Consult the doctor immediately if you become pregnant during treatment with Vinbicel Injection 1's. Seek immediate medical attention if you experience symptoms of pulmonary embolism (chest pain, breathlessness, and fainting), posterior reversible encephalopathy syndrome (headaches, changed mental state which may lead to confusion and coma, convulsions, blurred vision and high blood pressure), infection (cough, fever, and chills), severe constipation with abdominal pain, acute respiratory distress syndrome (difficulty breathing), severe reduced blood pressure (severe dizziness and lightheadedness when you stand up), severe chest pain, or allergic reactions (dizziness, rash, swelling of the eyelids, face, lips or throat).