 <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]  instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.The uses of Vonvendi Intravenous: This product is used to prevent and control bleeding episodes in people with von Willebrand disease. It may also be used to prevent the loss of too much blood during surgery. Von Willebrand factor is a protein normally found in the blood that helps the blood to thicken (clot) and stop bleeding. People with this disease do not have enough of this factor. This product contains a man-made form of von Willebrand factor. How to use Vonvendi Vial This medication is given by injection into a vein as directed by your doctor. After first receiving this medication in a hemophilia treatment center or hospital, some patients may be able to give it to themselves at home. If your doctor directs you to give this medication at home, read the Patient Information Leaflet if available from your pharmacist before you start using this medication and each time you get a refill. Learn all preparation and usage instructions in the product package. Learn how to store and discard medical supplies safely. If you have any questions, ask your health care professional. Depending on your </s>