Pharmacology Regarding trastuzumab, all of the following are true except : A Shows better response in combination with paclitaxel B Used in non-metastatic breast cancer C Causes upregulation of HER2/neu D Do not cause bone marrow toxicity 💡 Explanation Regarding trastuzumab, all of the following are true except : ✓ Correct Answer: C. Causes upregulation of HER2/neu