Which symptom may indicate a side effect of levothyroxine sodium?

Which symptom may indicate a side effect of levothyroxine sodium?

• A. Weight gain
• B. Bradycardia
• C. Insomnia
• D. Constipation

Answer: (C)

Levothyroxine sodium is a synthetic form of the thyroid hormone thyroxine (T4) and is used to treat hypothyroidism. It works by increasing metabolic processes in the body, which can influence various physiological functions. Insomnia can be a side effect of levothyroxine sodium because this medication increases thyroid hormone levels, which can lead to an increase in metabolism and energy levels. Consequently, patients may experience difficulty sleeping as their bodies respond to heightened hormonal activity. In contrast, weight gain is typically associated with hypothyroidism, rather than a side effect of levothyroxine. Bradycardia, or a slow heart rate, can result from excessive doses of levothyroxine, which is more likely to occur with high levels rather than a standard therapeutic dose. Constipation is also more commonly seen in patients with hypothyroidism rather than as a side effect of levothyroxine. Understanding these effects can help manage and anticipate symptoms during treatment.

Levothyroxine sodium is a synthetic form of the thyroid hormone thyroxine (T4) and is used to treat hypothyroidism. It works by increasing metabolic processes in the body, which can influence various physiological functions.

Insomnia can be a side effect of levothyroxine sodium because this medication increases thyroid hormone levels, which can lead to an increase in metabolism and energy levels. Consequently, patients may experience difficulty sleeping as their bodies respond to heightened hormonal activity.

In contrast, weight gain is typically associated with hypothyroidism, rather than a side effect of levothyroxine. Bradycardia, or a slow heart rate, can result from excessive doses of levothyroxine, which is more likely to occur with high levels rather than a standard therapeutic dose. Constipation is also more commonly seen in patients with hypothyroidism rather than as a side effect of levothyroxine. Understanding these effects can help manage and anticipate symptoms during treatment.