 <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]  The dosage is based on your medical condition and response to treatment. 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. For the best effect, use this antibiotic at evenly spaced times. To help you remember, use this medication at the same time(s) every day. Continue to use this medication for the full time prescribed, even if symptoms disappear after a few days. Stopping the medication too early may result in a return of the infection. Tell your doctor if your condition lasts or gets worse.The side effects of Metro I.V. Intravenous: Dizziness, headache, stomach upset, nausea, vomiting, loss of appetite, diarrhea, constipation, or metallic taste in your mouth may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. This medication may cause your urine to turn darker in color. This effect is harmless and will disappear when the medication is stopped. Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the </s>