 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. Trastuzumab is very similar to trastuzumab deruxtecan, trastuzumab emtansine, and trastuzumab-hyaluronidase. Do not use a trastuzumab deruxtecan, trastuzumab emtansine, or trastuzumab-hyaluronidase product while using a trastuzumab product. Does Trastuzumab-Dkst 420 Mg Intravenous Solution interact with other drugs you are taking? Enter your medication into the WebMD interaction checker Check InteractionThe overdose of Trastuzumab-Dkst Intravenous: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.  Notes Lab and/ </s>