Thyrox 50 Tablet

Composition of Thyrox 50 Tablet

Thyrox 50 Tablet contains Levothyroxine sodium 50 mcg (equivalent to Levothyroxine 50 mcg). It belongs to the Thyroid hormone (synthetic T4) class of medicines.

Uses of Thyrox 50 Tablet

Treatment of hypothyroidism (underactive thyroid); thyroid hormone replacement after thyroidectomy or radioiodine therapy; TSH suppression therapy in certain thyroid cancers/goitre (as prescribed).

Key benefits

• Normalises thyroid hormone levels
• Improves energy and metabolism
• Relieves hypothyroid symptoms (fatigue
• weight gain
• cold intolerance)
• Helps regulate heart rate and body temperature
• Supports normal growth and development when indicated

How Thyrox 50 Tablet works

Levothyroxine is a synthetic form of thyroxine (T4), a natural thyroid hormone. It is converted to the active hormone T3 in the body and restores normal thyroid hormone levels, helping regulate metabolism, energy, and body functions.

How to take Thyrox 50 Tablet

Tablet: Take exactly as prescribed, usually once daily on an empty stomach (ideally morning), 30–60 minutes before breakfast with water. Take at the same time daily; avoid taking with calcium/iron/antacids or high-fibre/soy foods—keep a 4-hour gap. Do not stop or change dose without medical advice; periodic TSH monitoring is required.

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 Thyrox 50 Tablet

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

• Palpitations
• fast heartbeat
• anxiety
• insomnia
• headache
• tremor
• sweating
• heat intolerance
• diarrhoea
• nausea
• weight loss
• irritability

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 Thyrox 50 Tablet

Warnings and precautions

Schedule H: use under medical supervision. Incorrect dosing can cause hyperthyroidism symptoms (chest pain, palpitations, breathlessness) and may worsen heart disease; use caution in elderly, coronary artery disease, arrhythmias, hypertension. Dose adjustments needed in pregnancy, postpartum, and with weight changes. Not for weight loss/obesity. Use caution in adrenal insufficiency (treat first) and diabetes (may alter glucose control).

Do not take Thyrox 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 supplements,aluminium/magnesium antacids,sucralfate,cholestyramine/colestipol,sevelamer,orlistat (reduce absorption); rifampicin,carbamazepine,phenytoin,phenobarbital,sertraline (may reduce effect); warfarin (increased anticoagulant effect); insulin/oral antidiabetics (dose may need adjustment); digoxin (levels/effect may change).

How to store Thyrox 50 Tablet

Store below 25°C in a dry place, protected from light and moisture. Keep tablets in original pack and out of reach of children.

Expert advice for Thyrox 50 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.

Manufacturer and class

Manufacturer:

MACLEODS PHARMACEUTICALS LTD

Therapeutic class:

Thyroid hormone

Drug class:

Thyroid hormone (synthetic T4)