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Prescription requiredMerck LtdHormone replacement
Euthyrox 12.5 Tablet
Levothyroxine sodium 12.5 mcg
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Euthyrox 12.5 Tablet is used for hypothyroidism (underactive thyroid), thyroid hormone replacement after thyroidectomy or radioiodine therapy, goiter suppression as advised.
Licensed pharmacyPharmacist-verified order
Key details
Salt: Levothyroxine sodium 12.5 mcg
Available variants: tablet 100 Tablet
Price: ₹158 (₹1.58 per tablet)
Prescription: Required
Manufacturer: MERCK PHARMA
Ordering notes
Delivery details are shown when the medicine is back in stock.
Returns & refunds: orders can be cancelled before dispatch; after dispatch, returns depend on the item category. Read the full policy
Composition of Euthyrox 12.5 Tablet
Euthyrox 12.5 Tablet contains Levothyroxine sodium 12.5 mcg. It belongs to the Thyroid hormone (T4) class of medicines.
Uses of Euthyrox 12.5 Tablet
- Hypothyroidism (underactive thyroid)
- Thyroid hormone replacement after thyroidectomy or radioiodine therapy
- Goiter suppression as advised
Benefits of Euthyrox 12.5 Tablet
- In Hypothyroidism
- Euthyrox replaces the thyroid hormone your gland is no longer making, restoring energy, concentration, body temperature and weight to normal. Taken every day, it lets you live a completely normal life.
- In Goitre
- Euthyrox supplies the thyroid hormone the body lacks, which can shrink an enlarged thyroid gland and stop it growing further.
- In Thyroid hormone replacement
- Euthyrox provides the thyroid hormone your body cannot make itself, for example after thyroid surgery or radioiodine treatment, so metabolism stays normal.
How Euthyrox 12.5 Tablet works
Levothyroxine is synthetic T4 thyroid hormone. It is converted to T3 in the body and restores normal thyroid hormone levels, improving metabolism, energy and temperature regulation.
How to take Euthyrox 12.5 Tablet
Take once daily on an empty stomach with water, ideally 30-60 minutes before breakfast. Take at the same time every day; avoid taking with calcium/iron/antacids within 4 hours. Dose is individualized based on TSH.
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 Euthyrox 12.5 Tablet
Most side effects of Euthyrox are mild and settle as the body gets used to the medicine. The ones reported most often are:
- Palpitations
- increased heart rate
- nervousness
- tremor
- insomnia
- sweating
- weight loss
- headache (usually with over-replacement)
Stop the medicine and get help at once 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 Euthyrox 12.5 Tablet
- AlcoholCAUTION
- Alcohol may worsen the side effects of this medicine. Limit it.
- PregnancySAFE
- Generally safe; dose often needs adjustment under doctor supervision
- Breast feedingSAFE
- Generally considered safe while breastfeeding.
- DrivingSAFE
- Not expected to affect your ability to drive.
- KidneySAFE
- No dose change is usually needed in kidney disease.
- LiverSAFE
- No dose change is usually needed in liver disease.
Warnings and precautions
Do not use for weight loss. Use caution in heart disease, arrhythmias and elderly; start low and titrate. Monitor TSH regularly; overdose can cause chest pain, breathlessness or severe palpitations. May reduce bone density with long-term excess dose.
Do not take Euthyrox 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 salts, iron salts, antacids (aluminum/magnesium), sucralfate, cholestyramine/colestipol, orlistat, rifampicin, carbamazepine, phenytoin, sertraline, warfarin (effect may increase), insulin/oral antidiabetics (dose may need adjustment)
How to store Euthyrox 12.5 Tablet
Store below 25°C, protected from light and moisture. Keep tablets in blister until use.
Quick tips for Euthyrox 12.5 Tablet
- Keep to the same brand where you can, and take it at the same time every morning.
- Have your thyroid blood test repeated as your doctor advises after any dose change.
Related lab tests
People taking Euthyrox are often asked to check these from time to time. Your doctor decides which and how often.
Manufacturer and class
- Manufacturer:
- MERCK PHARMA
- Therapeutic class:
- Hormone replacement
- Drug class:
- Thyroid hormone (T4)
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Euthyrox 12.5 Tablet FAQs
What is Euthyrox 12.5 Tablet used for?
Euthyrox 12.5 Tablet is commonly used for Hypothyroidism (underactive thyroid), thyroid hormone replacement after thyroidectomy or radioiodine therapy, goiter suppression as advised. Always follow your doctor's advice, this information is for educational purposes and not a substitute for professional medical guidance.
What are the benefits of Euthyrox 12.5 Tablet?
Hypothyroidism: Euthyrox replaces the thyroid hormone your gland is no longer making, restoring energy, concentration, body temperature and weight to normal. Taken every day, it lets you live a completely normal life. It is also used for goitre, thyroid hormone replacement.
What is the salt in Euthyrox 12.5 Tablet?
Euthyrox 12.5 Tablet contains Levothyroxine sodium 12.5 mcg. 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 Euthyrox 12.5 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 Euthyrox 12.5 Tablet work?
Levothyroxine is synthetic T4 thyroid hormone.
Is Euthyrox 12.5 Tablet a prescription medicine?
Yes. Euthyrox 12.5 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 Euthyrox 12.5 Tablet?
The side effects reported most often with Euthyrox are Palpitations, increased heart rate, nervousness, tremor, insomnia. 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 Euthyrox 12.5 Tablet be taken during pregnancy?
Euthyrox 12.5 Tablet is generally considered safe in pregnancy. Always tell your doctor if you are pregnant, planning a pregnancy or breastfeeding before starting Euthyrox.
Can I drink alcohol while taking Euthyrox 12.5 Tablet?
Limit alcohol while taking Euthyrox 12.5 Tablet; it can worsen the side effects.
What if I miss a dose of Euthyrox 12.5 Tablet?
Take it as soon as you remember.
Is Euthyrox 12.5 Tablet habit forming?
No. Euthyrox 12.5 Tablet is not known to be habit forming when taken as prescribed.
How much does Euthyrox 12.5 Tablet cost on PingMeDoc Pharmacy?
Euthyrox 12.5 Tablet starts at ₹158 on PingMeDoc Pharmacy. Available in tablet 100 Tablet. Final price is confirmed at checkout and may vary by variant and location.
Who manufactures Euthyrox 12.5 Tablet?
Euthyrox 12.5 Tablet is manufactured by MERCK PHARMA. PingMeDoc Pharmacy sources medicines only from licensed manufacturers and distributors.
How is Euthyrox 12.5 Tablet delivered?
Euthyrox 12.5 Tablet is delivered across India from our licensed pharmacy. Orders placed before 2 pm ship the same day, later ones the next day, every day of the week. Chennai: next-day delivery by Porter, ₹99 (free above ₹1,499). Enter your pincode on the page to see the date it reaches you.
Euthyrox 12.5 Tablet, Quick facts
- Salt
- Levothyroxine sodium 12.5 mcg
- Form
- tablet
- Price
- ₹158 (₹1.58 per tablet)
- Prescription
- Required (Rx)
- Schedule
- Schedule H
- Brand
- Merck Ltd
- Manufacturer
- MERCK PHARMA
- Therapeutic class
- Hormone replacement
- Drug class
- Thyroid hormone (T4)
- Habit forming
- No
- Variants
- tablet 100 Tablet
- Delivery
- Standard across India
References
Compiled from the manufacturer's prescribing information and the sources below, and reviewed by a registered pharmacist. It does not replace your own doctor's advice.
- Manufacturer labeling, established endocrinology literature
- Indian Pharmacopoeia (API standards)
- Central Drugs Standard Control Organisation (CDSCO), Ministry of Health & Family Welfare, Government of India, approved drug and schedule listings.
- National List of Essential Medicines (NLEM) 2022, Government of India.
- Manufacturer's package insert / prescribing information for Euthyrox 12.5 Tablet.
- 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.