Most common side effect of 5-Fluorouracil is-: (A) GI. toxicity, (B) Bone marrow depression, (C) Cardiotoxicity, (D) Neurotoxicity
Answer is A. Ans. is 'a' i.e., GI toxicity o The earliest untoward symptoms during a course of 5-FU are anorexia and nausea; these are followed by stomatitis and diarrhea.