 <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]  laboratory tests, and response to treatment. Use this medication regularly to get the most benefit from it. To help you remember, use it at the same time each day. Do not stop taking this medication without consulting your doctor. Some conditions may become worse when the drug is suddenly stopped. Tell your doctor if your condition does not improve or if it worsens.The side effects of Digoxin Oral: Nausea, vomiting, headache, dizziness, loss of appetite, and diarrhea 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, mental/mood changes, vision changes (such as blurred or yellow/green vision), enlarged/tender breasts in men. Though this medication is used to treat a certain type of irregular heartbeat, it may rarely cause other types of irregular heartbeats. Tell your doctor right away if you notice any unusually fast/slow/irregular heartbeat. A very serious allergic reaction to this drug is rare. However </s>