Active Ingredient (Generic Name):	Levothyroxine Sodium
Brand Name:	Eltroxin 100 mcg
Strength:	100 mcg
Dosage Form:	Tablets
Packaging:	As per available pack

Eltroxin 100 mcg contains levothyroxine sodium, a synthetic form of the thyroid hormone thyroxine (T4). It is primarily used as thyroid hormone replacement therapy for hypothyroidism, a condition in which the thyroid gland does not produce enough thyroid hormone.

What Is Eltroxin 100 mcg?

Eltroxin 100 mcg is a prescription thyroid medicine used to replace or supplement the thyroid hormone that the body is unable to produce adequately.

Levothyroxine is converted in the body to the active thyroid hormone triiodothyronine (T3), helping restore normal thyroid hormone levels and support metabolism, energy production, heart function, and other important body processes.

The appropriate dose varies from person to person and is generally determined based on thyroid function tests, age, medical history, and other factors.

How Does It Work?

Eltroxin contains levothyroxine sodium, which works by replacing the thyroid hormone that is deficient in people with hypothyroidism.

It helps:

• Restore normal thyroid hormone levels.
• Support normal metabolism and energy production.
• Help regulate body temperature and heart function.
• Support normal growth and development.
• Relieve symptoms associated with an underactive thyroid when thyroid hormone levels are adequately restored.

How to Take Eltroxin 100 mcg

• Timing: Take once daily, preferably in the morning.
• Empty Stomach: Take it on an empty stomach, generally 30–60 minutes before breakfast.
• Administration: Swallow the tablet with water.
• Consistency: Take it at approximately the same time every day.
• Other Medicines: Some medicines and supplements, particularly calcium and iron, can interfere with absorption. Follow your healthcare provider’s instructions regarding spacing these products from Eltroxin.
• Dose: Do not change the dose or stop treatment without consulting your healthcare provider.

Common Side Effects

Side effects are more likely if the dose is higher than required. They may include symptoms similar to an overactive thyroid, such as:

• Increased heartbeat or palpitations
• Nervousness or anxiety
• Tremors
• Increased sweating
• Headache
• Difficulty sleeping
• Increased appetite
• Weight loss
• Diarrhea
• Muscle weakness

Contact your healthcare provider if these symptoms persist or become severe.

Serious Side Effects

Taking too much levothyroxine can cause excessive thyroid hormone activity and may result in:

• Severe or persistent palpitations
• Chest pain
• Irregular heartbeat
• Shortness of breath
• Severe tremors
• Significant anxiety or agitation
• Severe headache

Seek prompt medical attention if you experience severe chest pain, difficulty breathing, or a significant change in heartbeat.

Contraindications & Precautions

Eltroxin should be used under medical supervision, particularly if you have:

• Heart disease or a history of heart problems.
• Diabetes.
• Adrenal gland problems.
• Osteoporosis or increased risk of bone loss.
• Other thyroid disorders.
• A history of thyroid surgery or radioactive iodine treatment.

Levothyroxine is not a weight-loss medicine and should not be used to lose weight in people with normal thyroid function.

Advantages of Eltroxin 100 mcg

• Provides thyroid hormone replacement for hypothyroidism.
• Helps restore thyroid hormone levels to the normal range when appropriately dosed.
• Can improve symptoms associated with low thyroid hormone levels.
• Suitable for long-term thyroid hormone replacement when prescribed by a healthcare professional.
• Once-daily dosing makes it convenient for regular treatment.

Disadvantages / Limitations

• The correct dose must be individualized.
• Regular thyroid blood tests may be required to monitor treatment.
• Taking too much can cause symptoms of hyperthyroidism.
• Calcium, iron, and certain other medicines can reduce its absorption.
• It generally needs to be taken consistently on an empty stomach.
• Treatment is often long-term, and many patients require lifelong therapy.

Important Notes

• Take Eltroxin exactly as prescribed by your healthcare provider.
• Do not increase, decrease, or discontinue the dose without medical advice.
• TSH and other thyroid function tests may be monitored periodically to determine whether the dose is appropriate.
• Tell your doctor about all medicines, vitamins, and supplements you take.
• Keep the timing of your daily dose consistent.
• Eltroxin should not be used as a weight-loss treatment.

Frequently Asked Questions

1. What is Eltroxin 100 mcg used for?

Eltroxin 100 mcg is primarily used for thyroid hormone replacement in people with hypothyroidism. It provides levothyroxine, a synthetic form of the thyroid hormone thyroxine (T4).

2. How does Eltroxin 100 mcg work?

Eltroxin contains levothyroxine sodium, which replaces the thyroid hormone that the body does not produce sufficiently. This helps restore thyroid hormone levels and support normal metabolic functions.

3. How should I take Eltroxin 100 mcg?

It is generally taken once daily on an empty stomach, preferably 30–60 minutes before breakfast, with water. Follow your healthcare provider’s specific instructions.

4. Can Eltroxin 100 mcg be used for weight loss?

No. Eltroxin is a thyroid hormone replacement medicine and should not be used for weight loss in people with normal thyroid function.

5. What are the common side effects of Eltroxin 100 mcg?

If the dose is higher than required, symptoms may include increased heartbeat, nervousness, sweating, tremors, difficulty sleeping, increased appetite, weight loss, and diarrhea.

6. Can I take calcium or iron supplements with Eltroxin?

Calcium and iron can interfere with levothyroxine absorption. Your healthcare provider or pharmacist can advise you on the appropriate interval between Eltroxin and these supplements.

7. Do I need regular thyroid tests while taking Eltroxin?

Yes. Your healthcare provider may periodically check TSH and other thyroid function tests to determine whether your current dose is appropriate.