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What are levothyroxine side effects?
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Check with your doctor immediately if any of the following side effects occur: Less common. Chest pain, discomfort, or tightness decreased urine output difficult or labored breathing difficulty with swallowing dilated neck veins extreme fatigue fainting fast, slow, irregular, pounding, or racing heartbeat or pulse fever heat intolerance
- Levothyroxine (Oral Route) Description and Brand Names
Solution. Tablet. Before Using. In deciding to use a...
- Before Using
Using this medicine with any of the following medicines may...
- Precautions
Levothyroxine should not be used for the treatment of...
- Levothyroxine (Oral Route) Description and Brand Names
- What Is Levothyroxine?
- Levothyroxine Side Effects
- Warnings
- Before Taking This Medicine
- How Should I Use Levothyroxine?
- What Happens If I Miss A dose?
- What Happens If I Overdose?
- What Should I Avoid While Using Levothyroxine?
- What Other Drugs Will Affect Levothyroxine?
- Popular FAQ
Levothyroxine is used in adults and children to treat hypothyroidism(underactive thyroid - a condition where the thyroid gland does not produce enough thyroid hormone). Levothyroxine is also used in adults along with surgery and radioactive iodine therapy to treat a certain type of thyroid cancer. Levothyroxine injection is used in adults to treat ...
Get emergency medical help if you have signs of an allergic reaction to levothyroxine: hives, difficult breathing, swelling of your face, lips, tongue, or throat. Levothyroxine may cause serious side effects. Call your doctor at once if you have: 1. sudden pain or trouble moving your hip, wrist, or back; 2. fast or irregular heartbeats; 3. chest pa...
You may not be able to use levothyroxine if you have certain medical conditions. Tell your doctor if you have an untreated or uncontrolled adrenal gland disorder or any heart problems such as a recent heart attack. Levothyroxine should not be used to treat obesity or weight problems.Dangerous side effects or death can occur from the misuse of this ...
You should not use levothyroxine if you are allergic to glycerin or edetate disodium, or if you have an untreated or uncontrolled adrenal gland disorder. To make sure this medicine is safe for you, tell your doctor if you have ever had: 1. a thyroid nodule; 2. thyroiditis (inflammation of thyroid gland); 3. heart problems such as a heart attack, st...
Take levothyroxine exactly as prescribed by your doctor. Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose. Some brands of levothyroxine have different dosage instructions and/or recommendations of how soon you need to take them before eating food. Al...
In a medical setting, you are not likely to miss a dose of levothyroxine injection. Take the missed oral levothyroxine dose as soon as you remember, and then go back to your regular schedule. Do not use two doses at one time.
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. An overdose can be fatal. Overdose symptoms may include headache, leg cramps, tremors, feeling nervous or irritable, chest pain, shortness of breath, fast or pounding heartbeats, stroke, and coma.
Avoid the following food products within 1 hour of taking oral levothyroxine or the medication will not be as effective: grapefruit juice, infant soy formula, soybean flour, cotton seed meal, walnuts, and high-fiber foods.
Sometimes it is not safe to use certain medicines at the same time. Some drugs can affect your thyroid hormone levels and also make levothyroxine less effective. If you use any of the following drugs, avoid taking them within 4 hours before or 4 hours after you use levothyroxine: 1. calcium carbonate (Alka-Mints, Caltrate, Os-Cal, Oyster Shell Calc...
More FAQ
1. How soon after taking levothyroxine can I take omeprazole? 2. What happens if you stop taking levothyroxine? View more FAQ
- Senior Editorial Pharmacist
Serious side effects of Levothyroxine. Along with its needed effects, levothyroxine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking levothyroxine: Less common
- Heat intolerance. Thyroid hormones play a role in maintaining body temperature. When there are more thyroid hormones in your body — such as through levothyroxine use — your core body temperature can go up.
- Sweating. You might sweat more than normal, especially on your palms or feet, while you’re taking levothyroxine. Elevated levels of thyroid hormones can turn on your body’s “fight-or-flight” response, which can lead to sweating.
- Irregular heartbeats or palpitations. Some people taking levothyroxine can have irregular heartbeats, like a fast heart rate or heart palpitations. Sometimes, this can feel like a racing or pounding heart.
- Diarrhea. While taking levothyroxine, you may experience diarrhea. Elevated thyroid hormone levels can cause your gut to make more digestive juices and speed up how fast things move through your small intestine, causing diarrhea.
May 10, 2020 · Levothyroxine oral tablet can cause side effects. More common side effects. The more common side effects of levothyroxine can include: increased appetite; weight loss; heat...
Nov 6, 2022 · Examples of levothyroxine’s commonly reported side effects include: tremors. insomnia (trouble sleeping) heart-related problems, such as heart palpitations * headache* muscle...
