Euthyrox Tablet

Euthyrox Tablet – Levothyroxine Sodium IP by Merck

Euthyrox from Merck is Levothyroxine Sodium Tablets IP, the standard replacement hormone for an underactive thyroid, supplied across five strengths – 12.5 mcg, 25 mcg, 50 mcg, 75 mcg and 100 mcg – in bottles of 100 tablets. Levothyroxine is a synthetic version of thyroxine (T4), the hormone the thyroid gland itself makes, and replacing it is not a one-size dose: the right amount depends on body weight, age, the cause and severity of the underactive thyroid, and periodic blood tests (TSH) that guide dose adjustment over weeks to months. Merck colour-codes every strength on the label – yellow for 100 mcg, grey/purple for 75 mcg, blue for 50 mcg, pink for 12.5 mcg – specifically so a pharmacist or patient never confuses one strength for another, since even a modest dosing error compounds over the months this medicine is typically taken. Choose your strength above; all five ship in a 100-tablet bottle.

Key Features

• Levothyroxine Sodium Tablets IP, available in 12.5, 25, 50, 75 and 100 mcg
• Each strength is colour-coded on the label to prevent dosing mix-ups
• The standard, lifelong hormone replacement for hypothyroidism
• Dose is individualised and adjusted by periodic TSH blood testing
• 100 tablets per bottle, from Merck Ltd.

Composition

• Levothyroxine Sodium IP – equivalent to anhydrous L-Thyroxine Sodium, in the strength selected (12.5 / 25 / 50 / 75 / 100 mcg)
• Excipients q.s. Colours vary by strength (e.g. Lake Quinoline Yellow & Lake Sunset Yellow FCF for 100 mcg). As printed on the bottle

Uses & Benefits

• Replaces the thyroid hormone the body is not making enough of in hypothyroidism
• Relieves fatigue, weight gain, cold intolerance, dry skin and other underactive-thyroid symptoms as levels normalise
• Used long-term, usually for life, once hypothyroidism is diagnosed
• Also used to suppress TSH after thyroid surgery for certain conditions, as prescribed
• Five strengths allow fine dose titration guided by blood tests

Directions for Use

• Take it first thing in the morning, on an empty stomach, at least 30 to 60 minutes before food, coffee or other medicines – food and many supplements (especially calcium and iron) block its absorption
• Swallow the tablet whole with a full glass of water
• Take it at the same time every day; consistency matters more than the exact time chosen
• Do not switch between strengths or brands without your doctor’s knowledge – a dose change needs a follow-up TSH test
• It can take four to six weeks for blood levels to stabilise after any dose change, so effects are judged over weeks, not days

Precautions

• Never stop or adjust the dose on your own. Both under-replacement and over-replacement (which mimics an overactive thyroid) carry real risks, including effects on the heart and bone density with long-term over-treatment
• Tell your doctor about any heart condition, especially angina or a history of heart attack – the starting dose is usually lower and increased more cautiously in these patients
• Take it well apart from calcium, iron, antacids and multivitamins, which can all reduce its absorption if taken too close together
• Tell your doctor about adrenal insufficiency before starting – it needs to be treated first or alongside thyroid replacement
• Routine TSH monitoring is part of treatment, typically every 6 to 8 weeks after any dose change and then periodically once stable
• Inform your doctor if you are pregnant, planning pregnancy, or breastfeeding – thyroid hormone needs often rise in pregnancy

Storage

• Store protected from light and moisture, as printed on the bottle
• Keep the cap tightly closed between uses
• Keep out of reach of children

Disclaimer

Schedule H prescription drug – to be sold by retail on the prescription of a Registered Medical Practitioner only. Thyroid hormone replacement requires individualised dosing and periodic blood monitoring; never change the dose or strength without medical advice. This information is for general awareness and is not a substitute for professional medical advice, diagnosis or treatment.