The side effects of chemotherapy depends on type of chemotherapy and when your bone marrow recovers. However, Generally 72 hours. Some side affects last much longer . Such as, fatigue,hair loss and neuropathy that can last for years !! Connie J Braun MD

Hi there, It depends on what type of chemotherapy and how it is delivered (i.e. by a pill, by IV, or by locally directed therapies such as chemoembolization)