
1.Sweating
Sweating from time to time, especially on your palms or feet, it is a common side effect of levothyroxine.
2. Heat intolerance
Thyroid hormones play a role in maintaining body temperature. Levothyroxine can make your core body temperature go up. You will be more sensitive for higher temperatures.
Keep inside room temperatures comfortable for you, or keep a fan nearby. Limit the time when you’re outside when it’s hot or humid.
3. Weight changes
Thyroid hormone can adjust the energy in your body. It may also affect body weight over time. It may cause weight loss.
Symptoms of hypothyroidism, such as weight gain, can return if you stop taking the medication.
4. Irregular heartbeats or palpitations
Irregular heartbeats, fast heart rate or heart palpitations, are also possibly happen. Sometimes, it can feel like a racing or pounding heart.
Limit the amount of coffee and energy drinks, stay hydrated, avoid excessive alcohol or tobacco will be helpful.
5. Diarrhea
Diarrhea is another side effect of levothyroxine you may experience.
If dietary changes, such as avoiding fatty or fried foods, which is helpful in managing or lessening diarrhea.
6. Tremors
Tremors in the hands can experience while taking levothyroxine.
Let your doctor recommend specific tips for your symptoms. The best way to manage tremors varies by person.
7. Hair changes
Levothyroxine can lead to hair thinning or hair weaking, or gray or white hair,because thyroid hormones affect your hair follicles and hair growth.
8. Mood changes
Levothyroxine can cause mood changes. Thyroid hormones affect chemical messengers of the brain which control emotion and mood.
9. Bone loss and fractures
Levothyroxine can raise your risk of bone loss.
Eating a calcium-rich diet and getting enough vitamin D. Doing enough exercise, which can help boost your bone health.
If you experience bone pain or a potential broken bone while taking levothyroxine, let your prescriber know right away.
10. Trouble sleeping
Thyroid hormone levels can affect your quality of sleep, including how well you fall or stay asleep.
Keeping your bedroom cool and dark at bedtime. Having a consistent sleep and wake time, it can also help improve your sleep.
If you can not bear with these side effects, please transfer to desiccated thyroid extract (DTE) or thyroid extract powder for a try,which is natural and effective,safe with less side effects to treat hypothyrodism.
Sunday,Sep 28, 2025