 <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]  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: bone/joint/muscle pain or swelling, constipation, mental/mood changes (such as depression), trouble walking/clumsiness, swelling ankles/feet, unusual tiredness, vision changes (such as blurred vision, eye pain), easy bleeding/bruising, signs of infection (such as sore throat that doesn't go away, fever, chills), symptoms of liver disease (such as nausea/vomiting that doesn't stop, loss of appetite, stomach/abdominal pain, yellowing eyes/skin, dark urine). Toremifene may increase your risk of uterine cancer. Tell your doctor right away if you develop changes in menstrual period, unusual vaginal bleeding/discharge or pain/pressure below your "belly button" (navel). Toremifene has rarely caused very serious (possibly fatal) blood clots in the lungs/legs, brain (stroke), and heart (heart attack). Get medical help right away if you develop pain/swelling in the groin/calf, pain in the chest/jaw/left </s>