 <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]  Do not flush medications down the toilet or pour them into a drain unless 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 Doxy-100 Intravenous: Doxycycline is used to treat a wide variety of bacterial infections. This medication is known as a tetracycline antibiotic. It works by stopping the growth of bacteria. How to use DOXY 100 Vial This medication is given by injection into a vein as directed by your doctor, usually once or twice daily. It should be injected slowly over at least 1 hour (usual range is 1 to 4 hours). The dosage is based on your medical condition and response to treatment. When treating children older than 8 years, the dosage is also based on weight. If you are giving this medication to yourself 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. For the best effect, use this antibiotic at evenly spaced times. To help you remember, use this medication at the same time(s) </s>