 <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]  serious side effects. Tell your doctor right away if you have any serious side effects, including: fainting, muscle spasms/uncontrolled muscle movements, missed/stopped periods, decreased sexual desire/ability, increased breast size (in men), mental/mood changes (such as depression), symptoms of heart failure (such as shortness of breath, swelling ankles/feet, unusual tiredness, unusual/sudden weight gain). Methyldopa has rarely caused very serious (rarely fatal) liver disease or low red blood cell count (anemia). Tell your doctor right away if you develop any symptoms of liver disease or anemia, including: nausea/vomiting that doesn't stop, unusual tiredness, fast heartbeat, unexplained fever, dark urine, severe stomach/abdominal pain, yellowing eyes/skin. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In </s>