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Lethyrox 12.5 Tablet Bottle showing the Front face.

Lethyrox 12.5 Tablet

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Lethyrox 12.5 Tablet is a thyroid hormone medicine containing levothyroxine (thyroxine) 12.

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3 bottle/s$33.99$11.33
6 bottle/s$57.99$9.67
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Manufacturer
Intas Pharmaceuticals Ltd.
Ingredient
Thyroxine / Levothyroxine
Form
Tablet
Prescription
Required
Availability
In stock
SKU
CMU4769

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What is Lethyrox 12.5 Tablet?

Lethyrox 12.5 Tablet is a thyroid hormone medicine containing levothyroxine (thyroxine) 12.5 micrograms in each tablet. It belongs to the thyroid replacement drug class and is used to treat hypothyroidism, to help restore normal thyroid hormone levels, and in some cases to support thyroid suppression therapy when prescribed by a doctor. Because thyroid treatment is individualized, Lethyrox 12.5 Tablet is a low-strength tablet that may be chosen when very gradual dose adjustment is needed.

How it works: Levothyroxine in Lethyrox 12.5 Tablet acts like the natural thyroid hormone your body normally makes, helping control energy use, temperature, heartbeat, and metabolism. This tablet is swallowed and absorbed in the digestive tract, then converted in the body to active thyroid hormone that helps replace what is missing.

Why choose Lethyrox 12.5 Tablet?

Lethyrox 12.5 Tablet is a very low-dose levothyroxine tablet, which makes it useful when a clinician wants to start gently or make small dose changes. Since this is the only strength sold in this range here, it is typically used as part of a carefully titrated treatment plan rather than as a one-size-fits-all dose. The exact dose can differ from person to person, especially in people with heart disease, older adults, or those sensitive to thyroid hormone.

Uses of Lethyrox 12.5 Tablet

  • Hypothyroidism
  • Thyroid hormone replacement
  • Dose titration for low thyroid function
  • Support for TSH suppression when prescribed

How to take Lethyrox 12.5 Tablet

  • Swallow Lethyrox 12.5 Tablet with a full glass of water.
  • Take it on an empty stomach, usually 30 to 60 minutes before breakfast, unless your doctor gives different instructions.
  • Take it at the same time each day to keep thyroid levels steady.
  • Do not crush or chew the tablet unless your pharmacist or doctor specifically tells you to.
  • Keep it away from iron, calcium, antacids, or multivitamins by several hours because they can reduce absorption.
  • If you miss a dose, follow your prescriber’s instructions; do not double up unless told to do so.

Lethyrox 12.5 Tablet dosage

Each Lethyrox 12.5 Tablet contains 12.5 micrograms of levothyroxine, and the dose taken per day is usually one tablet or another schedule set by the prescriber. Some people may need a higher total daily dose over time, but changes are made gradually and only by a doctor based on lab results and symptoms. Do not increase the number of tablets on your own, because too much thyroid hormone can be harmful.

Do not change your dose or stop the medicine without speaking to your doctor.

Lethyrox 12.5 Tablet side effects

Common side effects of Thyroxine / Levothyroxine may include:

  • Nervousness or shakiness
  • Headache
  • Trouble sleeping
  • Increased sweating
  • Fast heartbeat or palpitations
  • Diarrhea
  • Temporary hair shedding during dose adjustment

Get medical help right away if you notice:

  • Chest pain
  • Shortness of breath
  • Severe fast or irregular heartbeat
  • Signs of an allergic reaction such as rash, swelling, or trouble breathing
  • Severe weakness or confusion

Precautions and warnings

  • Tell your doctor if you have heart disease, arrhythmia, high blood pressure, or a history of heart attack before using Lethyrox 12.5 Tablet.
  • This low-strength tablet may still cause overreplacement if the dose is too high for you, especially if your dose is changed too quickly.
  • Use caution if you are pregnant or breastfeeding, because thyroid hormone needs often change and monitoring is important.
  • If you have diabetes, levothyroxine can change blood sugar control and may affect your medicine needs.
  • Tell your clinician about adrenal gland problems or pituitary disease before starting treatment.
  • Separate Lethyrox 12.5 Tablet from calcium, iron, bile acid sequestrants, and antacids, because they can lower absorption.
  • Avoid making abrupt changes to brand, timing, or diet without checking with your prescriber, because thyroid labs can shift.

Drug interactions

  • Calcium supplements
  • Iron supplements
  • Antacids containing aluminum or magnesium
  • Cholestyramine or colesevelam
  • Warfarin

Storage

Store Lethyrox 12.5 Tablet at room temperature in a dry place, away from heat, moisture, and direct light, and keep it in the original pack until use.

Frequently asked questions about Lethyrox 12.5 Tablet

What is Lethyrox 12.5 Tablet used for?

Lethyrox 12.5 Tablet is used to replace thyroid hormone in people with an underactive thyroid. It may also be used in other thyroid-related treatment plans when a doctor prescribes a very low levothyroxine dose.

How do I take Lethyrox 12.5 Tablet correctly?

Take Lethyrox 12.5 Tablet on an empty stomach with water, usually 30 to 60 minutes before breakfast. Try to take it at the same time every day and separate it from calcium, iron, and antacids by several hours.

Is Lethyrox 12.5 Tablet a starting dose?

Lethyrox 12.5 Tablet is a low-strength levothyroxine tablet that may be chosen when a doctor wants very small dose adjustments. Whether it is a starting dose or a maintenance dose depends on your age, thyroid levels, and medical history.

What side effects can happen with Lethyrox 12.5 Tablet?

Common side effects can include shakiness, headache, sweating, and trouble sleeping, especially if the dose is too high for you. Get urgent help if you have chest pain, severe palpitations, shortness of breath, or swelling of the face or throat.

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