 <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]  discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.The uses of Rezzayo Intravenous: This medication is used to treat certain fungal infections (candidemia, invasive candidiasis). Rezafungin belongs to a class of drugs known as echinocandins. It works by stopping the growth of fungi. How to use Rezzayo 200 Mg Intravenous Solution Antifungals-Systemic This medication is given by slow injection into a vein as directed by your doctor, usually once weekly over 1 hour. If you are using this medication at home, learn all preparation and usage instructions from your health care professional. Before using, check this product visually for particles or discoloration. If either is present, do not use the liquid. Learn how to store and discard medical supplies safely. Infusion reactions may happen while you are receiving this medication. Tell your doctor right away if you have symptoms such as chest tightness, rash, flushing, or nausea. Your doctor may slow down or temporarily stop your infusion if you have infusion reactions. Continue to use this medication until the full prescribed amount is finished, even if symptoms disappear after a few days. Sto </s>