Thyroxine (37.5mcg)

Thyroxine (37.5mcg) — Uses and Benefits

This medicine is used to treat hypothyroidism, a condition where the thyroid gland does not produce enough thyroid hormone for the body's needs.

WHAT THIS MEDICINE IS USED FOR

• Treating an underactive thyroid gland (hypothyroidism)
• Managing thyroid hormone replacement after thyroid surgery or radioactive iodine treatment
• Suppressing TSH levels in certain thyroid conditions as advised by your doctor

HOW IT WORKS

• It replaces or supplements the natural thyroid hormone thyroxine (T4) that your body is not making enough of
• This helps restore normal metabolic function, energy levels, and body processes controlled by thyroid hormone
• The hormone is converted in the body to its active form, which regulates metabolism in almost every organ

WHAT IT IS NOT USED FOR

• It is not a treatment for hyperthyroidism (overactive thyroid)
• It is not used for weight loss in people with normal thyroid function
• It is not a painkiller or anti-inflammatory medicine
• It should not be used without a confirmed diagnosis and doctor's prescription

How to Use Thyroxine (37.5mcg)

HOW TO TAKE IT

• Take this medicine exactly as prescribed by your doctor, usually once daily
• Take it on an empty stomach, at least 30-60 minutes before breakfast, with a full glass of water
• Try to take it at the same time every day for consistent absorption
• Avoid taking it together with calcium, iron supplements, or antacids; leave a gap of a few hours
• Do not stop or change the dose without consulting your doctor, even if you feel better

IF YOU MISS A DOSE

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

STORAGE

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

Thyroxine (37.5mcg) — Side Effects

COMMON SIDE EFFECTS

• Mild headache
• Nausea
• Difficulty sleeping
• Sweating more than usual

LESS COMMON SIDE EFFECTS

• Weight changes
• Diarrhoea
• Menstrual irregularities
• Nervousness or anxiety
• Hair loss (usually temporary, especially when starting treatment)

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 rash, swelling of face or throat
• Tremors, excessive sweating, or high fever suggesting overdose

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

Thyroxine (37.5mcg) — Safety Information and Precautions

This medicine is available only with a doctor's prescription in India.

DO NOT TAKE THIS MEDICINE IF YOU

• Are allergic to thyroxine or any ingredient in the formulation
• Have untreated adrenal gland problems
• Have an untreated overactive thyroid (thyrotoxicosis)
• Have had a recent heart attack (unless advised otherwise by your doctor)

TELL YOUR DOCTOR BEFORE STARTING IF YOU

• Have heart disease, high blood pressure, or irregular heartbeat
• Have diabetes, as thyroxine may affect blood sugar control
• Have osteoporosis or reduced bone density
• Are pregnant, planning pregnancy, or breastfeeding
• Are taking blood thinners, as dose adjustment may be needed

MEDICINES THAT CAN INTERACT

• Blood thinners such as warfarin
• Antacids, calcium, and iron supplements
• Certain diabetes medicines
• Other medicines for heart conditions
• Oral contraceptives and hormone therapies

Always inform your doctor about all medicines and supplements you are taking.

FREQUENTLY ASKED QUESTIONS

Can I stop this medicine once I feel better?

No, hypothyroidism usually needs long-term treatment; stopping suddenly can cause symptoms to return.

How long does it take to work?

It may take several weeks for symptoms to improve and thyroid levels to stabilise; regular blood tests help monitor this.

Can I take this medicine with food?

• It is best taken on an empty stomach as food can reduce its absorption; follow your doctor's instructions.
• Doctor ya pharmacist se salah lein.