 <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] ). Ursodiol is a bile acid. How to use Reltone 400 Mg Capsule Gallstone Solubilizing Agents Take this medication exactly as directed by your doctor. Dosage is based on your medical condition and response to therapy. Do not increase your dose or take this medication more often without your doctor's approval. Your condition will not improve any faster, and the risk of serious side effects may be increased. Use this medication regularly to get the most benefit from it. To help you remember, take it at the same times each day.The side effects of Reltone Oral: Stomach upset, nausea, diarrhea, dizziness, back pain, hair loss, or cough may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Tell your doctor right away if you have any serious side effects, including: weakness, swelling of the ankles/feet, increased thirst/urination, signs of infection (such as sore throat that doesn't go away, fever), easy bleeding/bruising, symptoms of </s>