Description
What is Eltroxin 100 mcg?
Eltroxin is a widely prescribed medication that contains Thyroxine Sodium (100 mcg), a synthetic form of the thyroid hormone thyroxine (T4). This medicine is used to treat hypothyroidism, a condition where the thyroid gland does not produce sufficient thyroid hormones.
Thyroid hormones are essential for controlling metabolism, energy production, heart health, and brain function. Without enough thyroid hormones, patients may suffer from fatigue, weight gain, hair loss, dry skin, irregular periods, and even depression. Eltroxin replaces the missing hormone and helps restore balance.
Indications & Uses of Eltroxin
Eltroxin 100 mcg is prescribed for:
Primary hypothyroidism (underactive thyroid)
Goiter management (enlarged thyroid gland)
Post-thyroidectomy therapy (after surgical removal of the thyroid)
Thyroid cancer treatment (as part of suppression therapy)
Congenital hypothyroidism (thyroid hormone deficiency in newborns)
Keyword-rich phrase: Eltroxin 100 mcg, hypothyroidism treatment, thyroid tablets.
Dosage & Administration
Usual starting dose: 25 mcg to 100 mcg daily, adjusted according to thyroid blood tests.
Taken once daily, preferably in the morning on an empty stomach with a glass of water.
Food, calcium, and iron supplements can reduce absorption, so take them at least 2 hours apart.
Treatment is usually lifelong for chronic hypothyroidism.
How Eltroxin Works
Eltroxin provides a synthetic version of thyroxine (T4), which the body naturally converts to triiodothyronine (T3) – the active form. This hormone regulates:
Metabolism & energy
Heart function & blood circulation
Brain development & mood
Digestive system function
Skin, hair, and weight control
Benefits of Eltroxin
Restores normal energy levels
Helps regulate body weight
Improves mental clarity and focus
Reduces hair loss and skin dryness
Supports heart health
Improves menstrual regularity in women
Possible Side Effects
Most patients tolerate Eltroxin well, but taking too much can cause symptoms of hyperthyroidism:
Headache
Palpitations & fast heartbeat
Anxiety or irritability
Weight loss
Sweating & heat intolerance
Insomnia
⚠️ Severe reactions like chest pain or breathing difficulty require immediate medical attention.
Precautions & Warnings
Do not take if you have untreated hyperthyroidism.
Use cautiously in patients with heart disease or arrhythmia.
Safe in pregnancy & breastfeeding but dosage adjustments are needed.
Avoid taking with soy products, iron, calcium, and antacids close to dosage time.
Price of Eltroxin 100 mcg in India (2025)
Pack of 120 tablets (100 mcg): approx. ₹177.41
Prices may vary depending on pharmacy and availability.
Keyword-rich phrase: Eltroxin price in India, buy Eltroxin online, Thyroxine tablets cost.
Alternatives & Substitutes
Thyroxine Sodium Tablets (other brands)
Levothyroxine Tablets
Eltroxin 50 mcg (lower strength)
These substitutes contain the same active ingredient and work similarly.
User Reviews ⭐⭐⭐⭐⭐
⭐⭐⭐⭐⭐ Sarah K. – “Eltroxin gave me my energy back! I no longer feel tired all day.”
⭐⭐⭐⭐ Ahmed R. – “Effective medicine, but you must take it daily on an empty stomach.”
⭐⭐⭐⭐⭐ Mona H. – “Helped me lose the weight I gained from hypothyroidism.”
⭐⭐⭐⭐ David L. – “I feel normal again, but I need regular blood tests for monitoring.”
⭐⭐⭐⭐⭐ Nadia F. – “Best thyroid medication I’ve used so far.”
10 Frequently Asked Questions (FAQs)
1. What is Eltroxin used for?
Eltroxin 100 mcg is used to treat hypothyroidism, goiter, and post-thyroid surgery conditions.
2. Does Eltroxin help with weight loss?
No, it’s not a weight-loss drug. It only normalizes metabolism in hypothyroid patients.
3. How long does it take for Eltroxin to work?
Improvement is usually felt within 2-4 weeks, full effect within 6-8 weeks.
4. Can I take Eltroxin during pregnancy?
Yes, it is safe, but your doctor may adjust the dose.
5. What happens if I miss a dose?
Take it as soon as you remember. If it’s close to your next dose, skip the missed one.
6. Can I take Eltroxin with food?
No, always take it on an empty stomach, at least 30 minutes before breakfast.
7. What are the symptoms of overdose?
Fast heartbeat, weight loss, sweating, anxiety, and insomnia.
8. Is Eltroxin lifelong therapy?
In most cases, yes – especially in chronic hypothyroidism or after thyroid removal.
9. Can Eltroxin affect fertility or periods?
Yes, hypothyroidism can cause irregular cycles. Eltroxin restores hormone balance, improving fertility and menstrual regularity.
10. What foods should I avoid with Eltroxin?
Soy, broccoli, cauliflower, iron & calcium supplements (close to dosage time).
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How to check your pack is genuine
We import directly and hand over the box sealed, exactly as it reached us. Before you accept delivery, check these five things in front of the courier:
- Manufacturer and country of origin printed on the carton itself, not on a sticker placed over it.
- Expiry date and batch/lot number printed on the carton and repeated on the inner blister, and the two must match.
- The outer carton is intact, not opened or re-sealed, with complete blister strips and no missing tablets.
- The patient leaflet is inside, in the language of the country of origin, matching the strength printed on the box.
- Strength and tablet count on the carton are exactly what you ordered. Check both before paying.
The No Style Like guarantee
If anything above does not match on delivery, refuse the parcel on the spot and you pay nothing. Heat-sensitive medicines ship in packaging that protects the storage temperature, and we make sure the expiry date covers your full course. Message us on WhatsApp before ordering and we will send you a photo of the exact pack in stock with its expiry date.









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