How lond does fr2 to be out off bloodstream?

The half-life of fluorouracil (5-FU), often referred to as FR2 in some contexts, is typically about 10 to 20 minutes when administered intravenously. However, the time it takes for the drug to be completely eliminated from the bloodstream can vary depending on factors such as dosage, patient metabolism, and kidney function. Generally, it may take several hours for the drug to be cleared from the system. Always consult a healthcare professional for specific concerns regarding medication.