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Euthyrox 12.5 Tablet

Merck Ltd

Information updated 18 March 2026

Thyroxine (12.5mcg) 150.88

Overview

Euthyrox 12.5 Tablet is a prescription medication containing the hormone thyroxine, used to treat hypothyroidism, a condition where the thyroid gland does not produce enough thyroid hormones. As a patient, it's essential to understand the importance of taking your medication as directed by your healthcare provider to maintain optimal thyroid function.

Uses

Euthyrox 12.5 Tablet is used to treat the following conditions:

  • Hypothyroidism: A condition where the thyroid gland does not produce enough thyroid hormones, leading to symptoms such as fatigue, weight gain, and cold intolerance.
  • General health: To maintain optimal thyroid function and overall well-being.

Mechanism of Action

Thyroxine, the active ingredient in Euthyrox 12.5 Tablet, works by replacing the hormone that your thyroid gland is not producing. It helps regulate your metabolism, growth, and development, and maintains the body's energy balance.

Dosage

Your healthcare provider will determine the correct dosage of Euthyrox 12.5 Tablet based on your individual needs. It's essential to take the medication exactly as prescribed, at the same time every day. The typical dosage range for adults is 12.5 to 300 mcg per day.

Important:

  • Take Euthyrox 12.5 Tablet with a full glass of water.
  • Swallow the tablet whole; do not crush or chew it.
  • Take the medication with food to minimize stomach upset.
  • Do not skip doses or stop taking the medication without consulting your healthcare provider.

Side Effects

Common side effects of Euthyrox 12.5 Tablet may include:

  • Nausea and vomiting
  • Diarrhea or stomach upset
  • Headache
  • Fatigue
  • Insomnia

More severe side effects can occur, such as:

  • Allergic reactions (hives, itching, difficulty breathing)
  • Chest pain or shortness of breath
  • Seizures

If you experience any of these side effects, contact your healthcare provider immediately.

Precautions

Before taking Euthyrox 12.5 Tablet, inform your healthcare provider about:

  • Pregnancy or breastfeeding
  • History of heart disease, high blood pressure, or other medical conditions
  • Taking other medications, including supplements and herbal remedies
  • Allergies to any medications or ingredients

FAQs

Q: What if I miss a dose of Euthyrox 12.5 Tablet? A: If you miss a dose, take it as soon as you remember. However, if it's close to the time for your next dose, skip the missed dose and continue with your regular schedule.

Q: Can I stop taking Euthyrox 12.5 Tablet if I start feeling better? A: No, do not stop taking Euthyrox 12.5 Tablet without consulting your healthcare provider. Stopping the medication abruptly can lead to a condition called thyroid storm, which can be life-threatening.

Q: Can I take Euthyrox 12.5 Tablet with other medications? A: Before taking Euthyrox 12.5 Tablet with other medications, consult your healthcare provider. Some medications can interact with thyroxine, affecting its effectiveness or causing adverse reactions.

Uses

  • General Health

Side Effects

  • Consult Doctor

Have questions about Euthyrox 12.5 Tablet?

Talk to a verified specialist who can guide you on dosage, alternatives, and interactions.

Safety Advice

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pregnancy

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alcohol

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driving

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