 <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]  changes (such as depression, rare thoughts of suicide, strange thoughts, anxiety, angry behavior, hallucinations, confusion), loss of coordination, signs of kidney problems (such as a change in the amount of urine), signs of a buildup of lactic acid in the blood (such as unusual tiredness, dizziness, severe drowsiness, chills, blue/cold skin, muscle pain, fast/difficult breathing, slow/irregular heartbeat, or stomach pain with nausea/vomiting/diarrhea), signs of liver problems (such as nausea/vomiting that doesn't stop, loss of appetite, stomach/abdominal pain, yellowing eyes/skin, dark urine), signs of pancreatitis (such as nausea, vomiting, stomach/abdominal/back pain, fever). Changes in body fat may occur while you are taking this medication (such as increased fat in the upper back and stomach areas, decreased fat in the arms and legs). The cause and long-term effects of these changes are unknown. Discuss the risks and benefits of treatment with your doctor, as well as the possible use of exercise to reduce this side effect. Tenofovir may increase the risk of bone loss. Discuss the risks and benefits of treatment with your </s>