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Prescription requiredGlaxo Smithkline PharmaThyroid hormone

Eltroxin 50 Tablet

Thyroxine (50mcg)

Eltroxin 50 Tablet is used for hypothyroidism, thyroid hormone replacement therapy, TSH suppression when indicated (doctor prescribed).

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated September 2026

₹114₹0.95 per tablet
Licensed pharmacyPharmacist-verified orderDelivered across India

Key details

Salt: Thyroxine (50mcg)
Available variants: tablet 120 Tablet 120 Tablet, tablet 120 Tablet
Best price: ₹114 (₹0.95 per tablet)
Prescription: Required
Manufacturer: GLAXO SMITHKLINE PHARMA

Ordering notes

Standard delivery across India. No same-day delivery nationally.
Chennai express delivery is possible and chargeable. Learn more
Returns & refunds: orders can be cancelled before dispatch; after dispatch, returns depend on the item category. Read the full policy

Composition of Eltroxin 50 Tablet

Eltroxin 50 Tablet contains Thyroxine (50mcg). It belongs to the Synthetic thyroid hormone (T4) class of medicines.

Uses of Eltroxin 50 Tablet

  • Hypothyroidism
  • thyroid hormone replacement therapy
  • TSH suppression when indicated (doctor prescribed)

Key benefits

  • Restores thyroid hormone levels
  • Improves hypothyroid symptoms
  • Helps maintain normal metabolism
  • Normalizes TSH with monitoring

How Eltroxin 50 Tablet works

Levothyroxine is synthetic T4 that is converted to T3 in the body. It replaces missing thyroid hormone and helps regulate metabolism and TSH.

How to take Eltroxin 50 Tablet

Take once daily on an empty stomach with water, ideally 30-60 minutes before breakfast. Maintain a consistent routine and avoid taking with calcium/iron/antacids; keep a 4-hour gap. Regular TSH checks guide dose adjustments.

Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.

Missed dose and overdose

If you miss a dose

Take it as soon as you remember. If your next dose is almost due, skip the one you missed — never take two doses together to catch up.

If you take too much

An overdose of this medicine can cause a racing heart, chest pain, tremor, fever and dangerous heart rhythm disturbance. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.

Side effects of Eltroxin 50 Tablet

Most side effects of Eltroxin are mild and settle as the body adjusts. Reported side effects include:

  • Palpitations
  • nervousness
  • insomnia
  • tremor
  • headache
  • sweating
  • increased appetite
  • weight loss

Stop the medicine and seek help immediately for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.

Safety advice for Eltroxin 50 Tablet

PregnancyGenerally safe
BreastfeedingEltroxin 50 mcg Tablet is safe to use during lactation. Human studies have shown that either the drug does not pass into the breastmilk in significant amount or is not expected to cause toxicity to the baby.
AlcoholUse with caution
DrivingNot expected to affect your ability to drive.
KidneyThere is limited information available on the use of Eltroxin 50 mcg Tablet in patients with kidney disease. Please consult your doctor.
LiverThere is limited information available on the use of Eltroxin 50 mcg Tablet in patients with liver disease. Please consult your doctor.
Habit formingNo

Warnings and precautions

Excess dosing may cause hyperthyroid symptoms, cardiac strain, and bone loss; seek care for chest pain or severe palpitations. Caution in heart disease, elderly, and adrenal insufficiency. Do not stop suddenly; consistent brand and timing improve control.

Do not take Eltroxin if

Not for anyone with a known allergy to this medicine or to any ingredient in the pack. Not for people with an untreated overactive thyroid or untreated adrenal insufficiency.

Interactions with other medicines

Calcium/iron supplements, antacids, sucralfate, cholestyramine, orlistat, rifampicin, phenytoin, carbamazepine, sertraline, warfarin, antidiabetic medicines

How to store Eltroxin 50 Tablet

Store below 25°C in a dry place, protected from light and moisture. Keep in original blister.

Expert advice for Eltroxin 50 Tablet

<div class="style__desktop-container___1hcBT"><div class="style__desktop-video___2GTR9"><div class="styles__video-img___1rCzR"><div class=""/><div class=""/></div></div><div><div><div><div><div class="ExpertAdviceItem__content___1Djk2"><ul><li><div>Your doctor has prescribed Eltroxin 50 Tablet to replace the natural thyroid hormone that your own thyroid gland can no longer make.</div></li> <li><div>It is best to take it on an empty stomach (ideally, first thing in the morning). No food, milk, or tea should be taken 1 hour before and 2 hours after taking this medicine.</div></li> <li><div>It may take 6 to 8 weeks to get the full effect.</div></li> <li><div>For most people, Eltroxin 50 Tablet is a lifelong medication. Do not discontinue it without first discussing with your doctor.</div></li> <li><div>Inform your doctor if you have diarrhoea, nervousness, irritability, feeling of a heartbeat, sleep disturbances, shaking hands, or chest pain. Your doctor may adjust your dose.</div></li> <li><div>Leave a gap of at least 4 hours before taking any antacids, calcium or iron supplements, and multivitamins, as these may interfere with the effect of the medicine.</div></li> <li><div>Get your hormone levels checked regularly and inform your doctor if you notice a significant change in your body weight. The dose may need to be adjusted.</div></li> <li><div>Inform your doctor before changing the brand of Eltroxin 50 Tablet as all brands may not have the same effect.</div></li></ul></div></div></div></div></div></div>

Manufacturer and class

Manufacturer:
GLAXO SMITHKLINE PHARMA
Therapeutic class:
Thyroid hormone
Drug class:
Synthetic thyroid hormone (T4)

Substitutes for Eltroxin 50 Tablet

Medicines with the same active ingredient (Thyroxine (50mcg)). Ask your doctor or pharmacist before switching brands.

MedicinePackPricevs Eltroxin 50 Tablet
Thyromed -50 TabletCOMED CHEMICALS`tablet · 100`S₹1104% cheaper
Thyrorich 50 TabletPRIMUS PHARMAtablet · 100`S₹1104% cheaper
Thyroneed 112 Tablettablet · 120`S₹21387% more
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Eltroxin 50 Tablet FAQs

What is Eltroxin 50 Tablet used for?
Eltroxin 50 Tablet is commonly used for Hypothyroidism, thyroid hormone replacement therapy, TSH suppression when indicated (doctor prescribed). Always follow your doctor's advice, this information is for educational purposes and not a substitute for professional medical guidance.
What is the salt in Eltroxin 50 Tablet?
Eltroxin 50 Tablet contains Thyroxine (50mcg). If you are allergic to any of these active ingredients or excipients, do not take this medicine and speak to your doctor first.
How should I take Eltroxin 50 Tablet?
Take once daily on an empty stomach with water, ideally 30-60 minutes before breakfast. Take it exactly as prescribed; do not change the dose or stop early without talking to your doctor.
How does Eltroxin 50 Tablet work?
Levothyroxine is synthetic T4 that is converted to T3 in the body.
Is Eltroxin 50 Tablet a prescription medicine?
Yes. Eltroxin 50 Tablet is a prescription-only (Rx) medicine. Upload a valid prescription from a registered medical practitioner during checkout. We cannot dispense it without a valid Rx.
What are the common side effects of Eltroxin 50 Tablet?
The side effects reported most often with Eltroxin are Palpitations, nervousness, insomnia, tremor, headache. Most are mild and settle as the body adjusts; tell your doctor if any of them persist or worry you, and stop the medicine and seek help at once for a rash, swelling of the face or lips, or difficulty breathing.
Can Eltroxin 50 Tablet be taken during pregnancy?
Generally safe Always tell your doctor if you are pregnant, planning a pregnancy or breastfeeding before starting Eltroxin.
Can I drink alcohol while taking Eltroxin 50 Tablet?
Use with caution
What if I miss a dose of Eltroxin 50 Tablet?
Take it as soon as you remember.
Is Eltroxin 50 Tablet habit forming?
No. Eltroxin 50 Tablet is not known to be habit forming when taken as prescribed.
Is there a cheaper substitute for Eltroxin 50 Tablet?
Thyromed -50 Tablet has the same active ingredient and strength and is listed from ₹110 on PingMeDoc Pharmacy. Ask your doctor or pharmacist before switching brands, the salt is the same, but excipients and release profiles can differ.
How much does Eltroxin 50 Tablet cost on PingMeDoc Pharmacy?
Eltroxin 50 Tablet starts at ₹114 on PingMeDoc Pharmacy. Available in tablet 120 Tablet 120 Tablet, tablet 120 Tablet. Final price is confirmed at checkout and may vary by variant and location.
Who manufactures Eltroxin 50 Tablet?
Eltroxin 50 Tablet is manufactured by GLAXO SMITHKLINE PHARMA. PingMeDoc Pharmacy sources medicines only from licensed manufacturers and distributors.
How is Eltroxin 50 Tablet delivered?
Eltroxin 50 Tablet is delivered across India via our licensed pharmacy partners. Standard delivery timelines are confirmed at checkout. Chennai customers can opt for chargeable same-city express delivery.

Eltroxin 50 Tablet, Quick facts

Salt
Thyroxine (50mcg)
Form
tablet
Best price
₹114 (₹0.95 per tablet)
Prescription
Required (Rx)
Schedule
Schedule H
Brand
GLAXO SMITHKLINE PHARMA
Manufacturer
GLAXO SMITHKLINE PHARMA
Therapeutic class
Thyroid hormone
Drug class
Synthetic thyroid hormone (T4)
Habit forming
No
Variants
tablet 120 Tablet 120 Tablet, tablet 120 Tablet
Delivery
Standard across India

References

The information on Eltroxin 50 Tablet is compiled from the manufacturer's prescribing information and the sources below, and is reviewed by a registered medical practitioner. It does not replace advice from your own doctor.

  1. Manufacturer labeling, established endocrinology literature, standard pharmacology references
  2. Central Drugs Standard Control Organisation (CDSCO), Ministry of Health & Family Welfare, Government of India, approved drug and schedule listings.
  3. National List of Essential Medicines (NLEM) 2022, Government of India.
  4. Manufacturer's package insert / prescribing information for Eltroxin 50 Tablet.
  5. World Health Organization, ATC/DDD classification and Model Formulary for the active ingredient.

Next steps

Safety disclaimer

Product information is for general awareness and does not replace professional medical advice. Always follow a clinician's guidance and upload a valid prescription when required.