How Will the Keystone XL Pipeline Be Built? If President Obama approves the hot-button Keystone XL pipeline, TransCanada has plenty of work to do to build the Montana-to-Nebraska connection. This is how its engineers plan to do it.
Side effects of a dose of levothyroxine that is too low would be similar to the symptoms of hypothyroidism. Symptoms of hypothyroidism, or underactive thyroid, include fatigue, weight gain, and constipation.
Common Side Effects of Synthroid. Instances of Synthroid side effects are not particularly common, typically occurring in less than 1 percent of users. The most common of these include change in appetite, diarrhea, headache, leg cramps, and shortness of breath, vomiting or weight loss.ynthroid Side Effects. Synthroid is a synthetic hormone that is used to treat hypothyroidism by replacing the hormones that are not being produced due to a malfunctioning thyroid gland.