Levothyroxine Side Effects and Dosage Information

Levothyroxine is prescribed to patients that cannot produce the required amount of thyroid needed by their body. People with low thyroid hormones can have problems like low energy, dry skin, feeling cold and weight gain. Levothyroxine is a supplement of the thyroid hormone. Once the dosage begins, it takes a few weeks for noticeable changes to take place in the body. Levothyroxine is also prescribed to patients with thyroid disorders like thyroid cancer and goiter. Levothyroxine can also be prescribed to patients who have fertility issues due to low thyroid levels in the body. Patients who have injured their thyroid gland, or have had it removed by surgery can use Levothyroxine to help produce the required amount of thyroid hormones. It is very important to have the right amount of thyroid hormones, as it helps balance and maintain the mental and physical strength of the body. This is especially important for growing children.


Levothyroxine in the tablet form should be taken with a glass of water. The tablet dissolves quickly, and so the tablet should be taken with care. It should not be chewed or cut, but should be swallowed in whole. If the tablet dissolves it might cause swelling in the throat and lead to choking. Levothyroxine should be taken at least a half an hour before meals. Most doctors direct their patients to take Levothyroxine in the morning, a half an hour before the first meal of the day. However, the dosage and the directions to take it can differ based on the conditions and requirements. Do not skip a dosage of this medicine accidentally or by assuming that there is no more need for it. Always check with the doctor before discontinuing a dosage. Levothyroxine takes a few weeks to show the effect of the medicine. It is possible in some cases that the patient would have to continue to take Levothyroxine every day of their lives in order to have their thyroid gland function properly. A regular blood test and check up will help the doctor understand the progress and changes caused by the medication in the body, and also help to catch the Levothyroxine side effects that might come up.

Levothyroxine side effects

The Levothyroxine side effects include headaches, insomnia, mood swings, sudden fevers and warm body temperature, sweating, unusual heartbeat, change in weight and appetite. For women, one of the side effects is the change in the menstrual cycle. When the dosage is being taken for the first time, the patient might experience hair loss. This is one of the side effects, but this might not last for very long and might only be temporary, and go on until the body has adjusted to the medicine.

Another one of its side effects is the risk of getting high thyroid hormone levels. The patient must check for the symptoms of such Levothyroxine side effects. The symptoms are: extra-sensitivity to hot temperatures, mood swings, fatigue, diarrhea, involuntary shaking, headaches, difficulty breathing and increase in sweating.