Can levothyroxine 50mcg cause heart to flutter?

Yes, levothyroxine 50 mcg can cause heart flutter or palpitations in some individuals, particularly if the dosage is too high or if the patient is sensitive to thyroid hormone changes. Increased levels of thyroid hormone can accelerate the heart rate and lead to symptoms like fluttering. If you experience these symptoms, it's important to consult your healthcare provider for evaluation and possible dosage adjustment.