LETHYROX 75MCG TABLET

Uses and Benefits of LETHYROX 75MCG TABLET (THYROXINE SODIUM 75MCG)

This medicine is used to treat conditions where the thyroid gland does not produce enough thyroid hormone naturally.

WHAT THIS MEDICINE IS USED FOR

• Treating hypothyroidism (underactive thyroid)
• Managing thyroid hormone replacement after thyroid surgery or radioactive iodine treatment
• Suppressing thyroid stimulating hormone (TSH) in certain thyroid conditions, including some cases of goitre
• Supporting normal growth and development in children with congenital hypothyroidism

HOW IT WORKS

• Thyroxine sodium replaces the natural hormone that the thyroid gland is not making in sufficient amounts
• It helps restore normal metabolism, energy levels, and body functions controlled by thyroid hormones
• It works gradually, and full effect may take several weeks

WHAT IT IS NOT USED FOR

• It is not used for weight loss in people with normal thyroid function
• It is not a treatment for hyperthyroidism (overactive thyroid)
• It is not a painkiller or immediate symptom reliever
• It should not be used without a doctor's prescription and monitoring

Side Effects of LETHYROX 75MCG TABLET (THYROXINE SODIUM 75MCG)

COMMON SIDE EFFECTS

• Headache
• Mild hair loss (usually temporary, in early treatment)
• Nausea
• Difficulty sleeping

LESS COMMON SIDE EFFECTS

• Weight changes
• Sweating
• Menstrual irregularities
• Skin rash
• Diarrhoea

SERIOUS SIDE EFFECTS — STOP AND SEE A DOCTOR IMMEDIATELY

• Chest pain or palpitations
• Rapid or irregular heartbeat
• Severe shortness of breath
• Signs of allergic reaction such as swelling of face, lips, or throat, or difficulty breathing
• Tremors, excessive sweating, or high fever (signs of too much thyroid hormone)
• Unusual anxiety or agitation

This is not a complete list. Report any unusual or persistent symptom to your doctor or pharmacist.

How to Use LETHYROX 75MCG TABLET (THYROXINE SODIUM 75MCG)

HOW TO TAKE IT

• Take exactly as prescribed by your doctor, usually once daily
• Take on an empty stomach, at least 30 to 60 minutes before breakfast, with a full glass of water
• Take at the same time every day for consistent results
• Avoid taking it close to calcium, iron supplements, or antacids, as they can reduce absorption; leave a gap of at least 4 hours
• Do not stop the medicine on your own, even if you feel better
• Continue regular blood tests as advised by your doctor to monitor thyroid levels

IF YOU MISS A DOSE

• Take it as soon as you remember on the same day
• If it is almost time for the next dose, skip the missed dose and continue as usual
• Do not take a double dose to make up for a missed one

STORAGE

• Store at room temperature, away from heat and moisture
• Keep in the original packaging, away from direct sunlight
• Keep out of reach of children
• Do not use after the expiry date printed on the pack

Safety Information and Precautions for LETHYROX 75MCG TABLET (THYROXINE SODIUM 75MCG)

DO NOT TAKE THIS MEDICINE IF YOU

• Are allergic to thyroxine sodium or any of its ingredients
• Have untreated adrenal gland problems
• Have untreated overactive thyroid (thyrotoxicosis)
• Have had a recent heart attack

TELL YOUR DOCTOR BEFORE STARTING IF YOU

• Have heart disease, high blood pressure, or irregular heartbeat
• Have diabetes, as your blood sugar medicine dose may need adjustment
• Have adrenal or pituitary gland problems
• Are pregnant, planning pregnancy, or breastfeeding
• Are elderly, as lower doses may be needed initially
• Have osteoporosis or bone density concerns

MEDICINES THAT CAN INTERACT

• Blood thinners such as warfarin
• Diabetes medicines, including insulin
• Calcium or iron supplements and antacids
• Certain antidepressants
• Oestrogen-containing medicines or oral contraceptives
• Cholesterol-lowering medicines such as cholestyramine

FREQUENTLY ASKED QUESTIONS

Can I stop this medicine once I feel better?

No, hypothyroidism usually needs lifelong treatment, and stopping suddenly can cause symptoms to return.

How long does it take to work?

It may take several weeks for full effect, and your doctor will check blood tests to adjust the dose if needed.

Can I take this medicine with food?

• It is best taken on an empty stomach before breakfast, as food can reduce its absorption.
• This medicine is available only with a doctor's prescription in India. Doctor ya pharmacist se salah lein.