This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Targeted Anticancer Drugs and Immunosuppressants, Subject name: Pharmacology
A 56-year-old female was prescribed trastuzumab. Which of the following statements regarding this drug is FALSE? 
Select and explain. 
A. It is an antibody produced entirely from mouse containing no human component, B. It is used for the treatment of breast carcinoma, C. It can cause cardiac toxicity, D. It is not effective orally
A: It is an antibody produced entirely from mouse containing no human component
Answer: A: It is an antibody produced entirely from mouse containing no human component 
Explanation: Trastuzumab: It is a humanized antibody against external domain of HER2/neu. produced from human component and small amount of mouse. Injectables Drugs : - Cetuximab : Used for colorectal cancer- Panitumumab : Used for colorectal cancer - Rituximumab : Used for NHL- Trastuzumab : Used for breast cancer, side effect: cardiotoxicity - Peuzumab : Used for breast cancer- Daratuzumab : Used for multiple myeloma- Olaratumumab: Used for soft tissue sarcoma