Levothyroxine Sodium
Levothyroxine Sodium 50MCG
What is Levothyroxine Sodium?
Levothyroxine Sodium (Synthroid) is a medication used to treat hypothyroidism, a condition where the thyroid gland does not produce enough thyroid hormone. It helps restore normal hormone levels, improving energy and overall health.Side Effects
- Seizures or tremors
- Fast, pounding, or uneven heartbeat
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
Warnings
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
- Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, heart or blood vessel disease, anemia, blood clotting problems, diabetes, osteoporosis, pituitary gland problems, or adrenal gland problems. Tell your doctor if you have recently received radiation treatment with iodine.
- This medicine may cause the following problems:Heart problems, including angina (chest pain), heart rhythm problemsLow bone density
- This medicine should not be used to treat obesity or as part of a treatment plan for a weight control program.
- Tell any doctor or dentist who treats you that you are taking this medicine.
Prescription savings · · · ·
What is Levothyroxine Sodium ?
Levothyroxine Sodium (Synthroid) is a medication used to treat hypothyroidism, a condition where the thyroid gland does not produce enough thyroid hormone. It helps restore normal hormone levels, improving energy and overall health.- Seizures or tremors
- Fast, pounding, or uneven heartbeat
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Chest pain that may spread, trouble breathing, unusual sweating, fainting
- Confusion, swelling of the face, tongue, or lower legs, feeling cold, unusual tiredness or weakness
- Dizziness, lightheadedness, stomach pain
- Severe headache, blurred or double vision, nausea, vomiting (in children)
- Walking with a limp, knee or hip pain (in children)
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
- Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, heart or blood vessel disease, anemia, blood clotting problems, diabetes, osteoporosis, pituitary gland problems, or adrenal gland problems. Tell your doctor if you have recently received radiation treatment with iodine.
- This medicine may cause the following problems:Heart problems, including angina (chest pain), heart rhythm problemsLow bone density
- This medicine should not be used to treat obesity or as part of a treatment plan for a weight control program.
- Tell any doctor or dentist who treats you that you are taking this medicine.
- Do not stop using this medicine suddenly. Your doctor will need to slowly decrease your dose before you stop it completely.
- Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
Levothyroxine Sodium Coupons & Prices
Levothyroxine Sodium 50MCG
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Levothyroxine Sodium prices by dosage
Lowest cash price with a free Rx.com coupon vs. the average retail price.
| Dosage | Quantity | Retail price | Rx.com price |
|---|---|---|---|
| 25mcg · Tablet | 90 | $26.89 | $10.00 |
| 50mcg · Tablet | 90 | $21.79 | $10.00 |
| 75mcg · Tablet | 90 | $23.19 | $10.00 |
| 88mcg · Tablet | 90 | $50.18 | $10.00 |
| 100mcg · Tablet | 90 | $24.69 | $10.00 |
| 112mcg · Tablet | 90 | $25.69 | $10.00 |
| 125mcg · Tablet | 90 | $25.99 | $10.00 |
| 137mcg · Tablet | 90 | $24.19 | $10.00 |
Cash prices near ZIP 77433; updated regularly. Actual pharmacy price may vary.
Looking for a levothyroxine sodium coupon? Levothyroxine sodium is the generic synthetic thyroid hormone (T4) used to treat hypothyroidism, and because it is generic it is already one of the lower-cost prescriptions at the pharmacy. Even so, the cash price can vary widely from one pharmacy to the next, so comparing before you fill really matters. Rx.com compares live prices across more than 60,000 pharmacies so you can find the best price near you and use a free discount coupon at the counter. Enter your ZIP above to see today's price on levothyroxine sodium.
What is levothyroxine sodium and how does it work?
Levothyroxine sodium is a synthetic form of thyroxine (T4), the main hormone your thyroid gland normally makes. It is sold under brand names such as Synthroid, Levoxyl, Unithroid, Euthyrox, Levo-T, and Tirosint (including the Tirosint-SOL solution). When your thyroid does not produce enough hormone on its own, levothyroxine replaces or supplements it to restore normal levels.
It is FDA-approved for hypothyroidism (an underactive thyroid from congenital or acquired causes) and as an add-on to surgery and radioiodine therapy to help manage certain well-differentiated thyroid cancers by suppressing pituitary TSH. It is also used to treat or prevent certain goiters, including thyroid nodules, multinodular goiter, and chronic (Hashimoto's) thyroiditis. Levothyroxine is not a weight-loss drug and is not approved for obesity.
How much does levothyroxine sodium cost without insurance?
Because levothyroxine sodium is available as a generic, its cash price is generally low compared with brand-name thyroid medications. The catch is that the price is not the same everywhere. The same strength and quantity can cost noticeably more at one pharmacy than another in the same town, which is exactly why comparing pays off.
Rx.com checks live prices across more than 60,000 pharmacies and gives you a free discount coupon you can show at the pharmacy counter, with no insurance required. Enter your ZIP above to see today's price near you. If you and your prescriber prefer a brand version, the brand manufacturer of Synthroid offers a savings program at synthroid.com/support; eligibility and terms vary, so check the official page for current details.
Levothyroxine brands and thyroid alternatives
Levothyroxine sodium is the generic, and several brands contain the same T4 active ingredient, including Synthroid, Levoxyl, Unithroid, and Tirosint. Because levothyroxine has a narrow therapeutic index, it is not always fully substitutable, so switching between a brand and a generic (or between manufacturers) can shift your TSH control. If your product changes, your prescriber may want to recheck your levels.
Other thyroid treatments work differently. Liothyronine is synthetic T3, and Armour Thyroid is a natural desiccated thyroid product that contains both T3 and T4. Which option is right for you is a decision to make with your provider, not something to change on your own.
Levothyroxine safety and side effects
Levothyroxine carries a boxed warning: it should not be used to treat obesity or for weight loss. In people with normal thyroid function, ordinary replacement doses do not cause weight loss, and larger doses can cause serious or even life-threatening toxicity, especially if combined with stimulant-type appetite suppressants. Because the dose window is narrow, taking too much can cause symptoms of an overactive thyroid such as a fast or pounding heartbeat, irregular heartbeat, tremor, trouble sleeping, feeling too warm, and unintended weight loss. Long-term over-treatment that suppresses TSH can raise the risk of atrial fibrillation and lower bone density.
People with heart disease and older adults usually start on a low dose that is increased slowly to avoid triggering chest pain or a heart rhythm problem. Anyone with adrenal insufficiency should have that treated first. For best absorption, levothyroxine is typically taken on an empty stomach and separated from calcium, iron, and antacids. This is general information, not medical advice; talk with your doctor or pharmacist about the right dose and timing for you, and do not start, stop, or change your thyroid medicine on your own.
This Levothyroxine Sodium information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.
Verify the official label: Levothyroxine Sodium on DailyMed (FDA)
Reviewed against FDA labeling · Last reviewed July 2026
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Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.