Eltroxin 100 mcg Tablet

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$29.30
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  • Treats Hypothyroidism effectively

  • Contains FDA-approved Levothyroxine Sodium (100 mcg)

  • Starts working immediately

  • Visible improvements in 4-6 weeks

  • Dispatch within 24 hours

verified tick Medically Reviewed by Dr. Akansha Kaushal
Akansha Kaushal

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Dr. Akansha Kaushal

Clinical Pharmacologist and Drug Safety Expert

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verified tick Written by Julian Carter
Julian Carter

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Julian Carter

MBA in Pharmaceutical Management

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What is Eltroxin 100 mcg

Eltroxin 100 is a synthetic thyroid hormone tablet used to treat Hypothyroidism (underactive thyroid). It contains Levothyroxine Sodium (100 mcg), also called Thyroxine Sodium, an FDA-approved active ingredient. GlaxoSmithKline Pharmaceuticals Ltd manufactures this hypothyroidism treatment tablet in GMP-compliant facilities.

It works by replacing the thyroxine hormone that your thyroid gland isn't producing in sufficient amounts, helping restore normal metabolic function throughout your body. This medicine for thyroid hormone replacement is typically prescribed for long-term or lifelong use, depending on the underlying cause of your condition. Consult an experienced healthcare expert to determine the right dosage for you.

What are the uses of Eltroxin 100 mcg

Eltroxin 100 mcg is primarily used to treat Hypothyroidism caused by low thyroid hormone production. It is often prescribed for:

  • Thyroid Hormone Deficiency after thyroid surgery or radiation therapy
  • Goiter linked to thyroid hormone imbalance
  • Congenital Hypothyroidism, under medical supervision
  • Thyroid-stimulating Hormone (TSH) suppression in certain thyroid conditions

Your doctor will help decide the correct dosage of this tablet for an underactive thyroid based on your hormone levels and overall health.

How does Eltroxin 100 mcg work

Eltroxin 100 works by replacing the thyroid hormone thyroxine (T4) that your body isn't producing in adequate amounts, which helps restore normal metabolic function. Once absorbed, the synthetic hormone is converted in your body to its active form, triiodothyronine (T3), which regulates energy production, heart rate, and metabolism in nearly every cell.

This helps correct the wide range of symptoms caused by low thyroid hormone levels.

Key benefits of this Levothyroxine 100 mcg tablet include:

  • Restores energy levels: Helps reduce fatigue linked to Hypothyroidism.
  • Supports metabolism: Supports regulation of weight and energy use.
  • Improves mental clarity: May help reduce brain fog associated with low thyroid hormone.
  • Supports heart function: Can also help normalize the heart rate affected by thyroid imbalance.

Eltroxin 100 tablets typically begin working immediately after administration, though it may take 4-6 weeks of consistent daily use for your thyroid hormone levels and symptoms to stabilize fully.

Is Eltroxin 100 mcg the same as Synthroid?

Yes, the Eltroxin tablet contains Levothyroxine Sodium, the same active ingredient used in brand medicine Synthroid. Both must meet the same bioequivalence standards, meaning they work identically in the body. GlaxoSmithKline Pharmaceuticals manufactures Eltroxin tablets in GMP-compliant facilities. The only differences are the manufacturer, packaging, and inactive ingredients, and none of these affect how the medication works.

How to take Eltroxin 100 mcg

Here's how to take Eltroxin 100 safely and effectively:

  • Take once daily, first thing in the morning. Take it at the same time every day to maintain steady hormone levels.
  • Swallow the tablet whole with a full glass of water.
  • Take it on an empty stomach, at least 30-60 minutes before breakfast.
  • Do not exceed the prescribed Levothyroxine Sodium dosage.

Always consult a healthcare professional before starting or adjusting your dosage.

Strength and Substitute

Eltroxin 100 is available in the following strengths and substitutes at GoodRxMedicine:

Eltroxin 75 mcg Tablet $10.54/bottle
Thyronorm 100 mcg $0.09/pill

View all substitutes

What are the side effects of Eltroxin 100 mcg

Eltroxin 100 may cause some side effects, though most are mild and temporary. Common side effects include:

  • Headache
  • Insomnia
  • Sweating
  • Weight changes
  • Palpitations
  • Nervousness
  • Diarrhea

These side effects often occur when the dose needs adjustment and usually improve once your thyroid levels stabilize.

Serious side effects: Seek immediate medical help if you experience chest pain, irregular heartbeat, or signs of a severe allergic reaction like swelling or difficulty breathing.

Interactions

Like any medicine, Eltroxin 100 can interact with your medications, certain foods, or medical conditions.

Drug Interactions

Certain medications can affect how the medicine works or increase the chances of side effects. They include:

  • Warfarin
  • Insulin
  • Calcium supplements
  • Iron supplements
  • Proton pump inhibitors (antacids)

Disease Interactions

Using Eltroxin 100 tablets in the following medical conditions can be unsafe or require caution:

  • Cardiovascular disease: Thyroxine hormone can increase heart rate and may worsen symptoms in people with existing heart conditions.
  • Adrenal Insufficiency: Thyroid hormone replacement can worsen untreated Adrenal Insufficiency (adrenal glands don't make enough cortisol) if started before adrenal function is stabilized.
  • Diabetes: This medication may affect blood sugar control, requiring adjustment of Diabetes medications.
  • Osteoporosis: Long-term or excessive thyroid hormone replacement may affect bone density.

As thyroid hormone levels directly affect heart rate and metabolism, your doctor may recommend regular monitoring if you have any of these conditions.

Food Interactions

Certain foods can also reduce the effectiveness of this medicine:

  • Soy products: Soy-based foods can reduce the absorption of Thyroxine and should be spaced apart from your dose.
  • High-fiber foods: A high-fiber diet may interfere with how well your body absorbs the medication.
  • Coffee: Drinking coffee too close to your dose can reduce absorption.

What precautions should you take with Eltroxin 100 mcg

Before starting treatment, consider the following precautions to ensure safe use.

  • This is typically a lifelong medication. Do not stop taking it without consulting your doctor.
  • Avoid taking calcium, iron supplements, or antacids within 4 hours of your dose.
  • If you are pregnant or breastfeeding, discuss dosage adjustments with your doctor, as thyroid hormone needs can change.
  • Have your TSH levels checked regularly to ensure your dose remains accurate.
  • Do not switch between different brands of Levothyroxine without consulting your doctor.
  • Older adults with heart conditions may need a lower starting dose.

Why buy from GoodRxMedicine

Eltroxin 100 mcg tablet at GoodRxMedicine is sourced from GlaxoSmithKline Pharmaceuticals through verified supply channels. We offer:

  • Genuine, quality-assured medication
  • Discreet packaging with plain billing
  • Reliable delivery in 10-18 business days
  • Secure payment options
  • Free reship guarantee if your order is held in customs
  • Dedicated customer support for any questions

Visit GoodRxMedicine for authentic thyroid medication at competitive prices.

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When should I take Eltroxin 100 mcg Tablet?

Take an Eltroxin tablet first thing in the morning, at least 30-60 minutes before eating or drinking anything other than water. Taking it consistently at the same time each day helps maintain stable thyroid hormone levels.

Does Eltroxin 100 mcg need a prescription?

Yes, it requires a prescription. Your doctor needs to confirm your thyroid hormone levels through blood tests and determine the correct starting dose based on your individual condition.

How long after taking Eltroxin 100 mcg can I eat?

You should wait at least half an hour after your dose before eating breakfast or drinking anything other than water. Eating too soon can reduce how much of the medication your body absorbs.

Can Eltroxin 100 mcg cause palpitations or anxiety?

Yes, palpitations and anxiety can occur due to Eltroxin, particularly if your dose is higher than what your body needs. If any of these symptoms persist or worsen, contact your doctor, as your dosage may need adjustment.

Is Eltroxin 100 mcg a lifelong medicine?

Yes, for most people with permanent Hypothyroidism, this is a lifelong medicine. Some causes of Thyroid Hormone Deficiency are temporary, so your doctor will determine whether long-term treatment is necessary for you.

What happens if I miss a dose of Eltroxin 100 mcg?

If you miss a dose of Eltroxin 100, take it as soon as you remember, unless it's close to your next scheduled dose. Do not double up to make up for a missed dose. Contact your doctor if you miss several doses in a row.

Can I take Eltroxin 100 mcg with calcium or iron supplements?

No, iron or calcium supplements should not be taken within 4 hours of your Eltroxin dose. They can significantly reduce how much thyroid hormone your body absorbs, affecting the medication's effectiveness.

Can Eltroxin tablets cause weight changes?

Yes, weight gain and weight loss can occur while adjusting to Eltroxin treatment, depending on whether your dose is too low or too high. Weight typically stabilizes once your thyroid hormone levels reach a normal range.

Can I take Eltroxin 100 mcg during pregnancy?

Yes, you can take Eltroxin in pregnancy if prescribed. Treatment is generally continued since untreated Hypothyroidism can affect both mother and baby. However, your dosage may need adjustment during pregnancy, so close monitoring by your doctor is essential.

Disclaimer: GoodRxmedicine is entirely unrelated to GoodRx in any way or form. GoodRxmedicine is an Indian online Pharmacy only dealing in selling generic medicines in compliance with the law to its full extent of the Republic of India. We hereby deny any sponsorship, endorsement, or affiliation between GoodRx.com USA and Goodrxmedicine.com India.
The information provided on this page is for general informational purposes only and should not be considered a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with any questions you may have regarding a medical condition or before starting any medication. Goodrxmedicine.com – India is an online pharmacy operating within the legal framework of Indian regulations, offering generic pharmaceutical products. For any questions or concerns, please contact us at: support@goodrxmedicine.com

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