Eltroxin 50 mcg
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Eltroxin 50 mcg


Eltroxin 50 mcg is usually used to treat underactive thyroid gland. Thyroxine Sodium is the active ingredient of this medication.

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360 tabs $13.00

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A tablet that is often used in patients who experience underactive thyroid gland (hypothyroidism). It helps to replace the hormone that is not produced by the thyroid in sufficient amounts. This helps to regulate the body’s metabolism and energy. Physicians may also prescribe this medication to treat other medical conditions not listed in this article. Eltroxin 50 mcg contains Thyroxine Sodium as an active ingredient. Despite that, it also contains other inactive ingredients such as acacia powdered, purified water, magnesium stearate, lactose, sodium citrate, maize starch, and others.

The manufacturer of Eltroxin 50 mcg is GlaxoSmithKline.

How to Use Eltroxin 50 mcg?

Administer the tablet whole by mouth with a glass full of water usually once daily or as your doctor directs. While swallowing, you should not chew, break, or crush the tablet because you may notice an unpleasant taste in your mouth. Do not use an alcoholic drink to administer this medicine because it may increase your risk of negative effects. Use this medicine at a fixed time every day, to get a better effect from Eltroxin 50 mcg.

In addition, not recommended to use this medication more often than is prescribed by the doctor because it will not treat your health condition faster. In some circumstances, your doctor may gradually increase the dose for several weeks if you are not noticing the desired result.

If you prefer the liquid form of this medicine, measure the dose carefully with a special spoon. Otherwise, you may get the wrong dose, which may also increase your risk of adverse effects. In case you have any questions, ask your healthcare provider.


The dosages are based on your age, weight, other medications that you may be using, response to therapy, and the severity of the medical condition. Therefore, doctors prescribe different dosages for their patients. If you are unsure what dosage is better for you, avoid using this medication or talk with a physician.

Missed Dose

It is not recommended to miss a dose because symptoms may return and your condition may become more difficult to treat. In any case, if you miss one, it is recommended to administer the dose as soon as you remember. If it is approaching the time for the next dose, just skip the missed dose and continue the regular schedule as prescribed. It is not allowed to administer an increased dose of Thyroxine the next time to catch up because you may experience severe side effects.


You may rarely notice an overdose due to an increased amount of Eltroxin 50 mcg. However, if you experience any of the following symptoms, interrupt using this medicine and consult a doctor at once. For example slow or shallow breathing, severe dizziness, passing out, fast or pounding heartbeat, and others. Discuss with a doctor for more details.

Adverse Effects of Eltroxin 50 mcg

All medications may give you certain side effects and Eltroxin 50 mcg is not an exception. However, you may not notice any of the following negative effects if your body adjusts to Thyroxine. There are some factors that can provoke side effects such as dehydration, overdose, and allergy.

Common Adverse Effects

Patients can continue safely using Eltroxin 50 mcg even if they experience any of the following adverse effects. In addition, your physician may help you to avoid or prevent side effects. Check below some examples:

  • Headaches
  • Irritation
  • Sweating
  • Flushing
  • Appetite changes
  • Muscle cramps
  • Diarrhea
  • Vomiting

Severe Adverse Effects

In rare cases, this category of negative effects may occur due to an increased dose of Thyroxine. If you experience any of the following side effects, stop using this medicine and ask for medical help right away. Check some examples below:

  • Restlessness
  • Weight loss
  • Insomnia (sleep disturbances)
  • Palpitations
  • Mental disorders (such as anxiety, nervousness, and others)
  • Muscle weakness
  • Tremors (shaking)

Talk with a doctor if you experience any of the adverse reactions listed above or any other effects.


Thyroxine Sodium may interact with other substances and medications. It means that other drugs may change how this medicine works by reducing its effectiveness or even increasing the risk of adverse effects. That’s why it is recommended before using Eltroxin 50 mcg, to share a list of products that you are using. For example supplements, herbal products, prescription medications, over-the-counter medications, vitamins, and others. Check below some examples of drug interaction:

  • Insulin
  • Phenytoin
  • Carbamazepine
  • Digoxin
  • Cholestyramine
  • Vitamins with minerals
  • Warfarin
  • Trazodone
  • Theophylline
  • Testosterone
  • Ritonavir
  • Rifampin
  • Rifabutin
  • Raloxifene
  • Quinapril
  • Primidone
  • Phenobarbital
  • Orlistat
  • Omeprazole
  • Norepinephrine
  • Metformin
  • Magnesium supplements
  • Ketamine
  • Imipramine
  • Indinavir
  • Glipizide
  • Estradiol
  • Epinephrine
  • Digitoxin
  • Dopamine
  • Calcium supplements
  • Acarbose
  • Apalutamide
  • Amitriptyline
  • Amiodarone

This document does not contain a full list of drug interactions. That’s why it is advised to consult a doctor before taking Eltroxin 50 mcg. Moreover, it is not allowed to stop, start, or change the dosages without the doctor’s approval because you may experience unwanted results.


Inform your doctor if you have an allergy to the ingredients of the drug or if you have any other allergies. In addition, you should share your medical history with your doctor before taking this medicine. Examples include:

  • Hypertension (high blood pressure)
  • Diabetes
  • Seizures
  • Thyrotoxicosis
  • Cardiovascular disease
  • Adrenal insufficiency
  • Cancer
  • Surgery
  • Heart problems (such as recent myocardial infarction)

During pregnancy, Eltroxin 50 mcg may be used with the doctor’s approval only because it may harm you and your unborn baby. In addition, it is recommended to talk with a doctor before breastfeeding because there is no information if this drug passes into breast milk or not.

Where to Buy Eltroxin 50 mcg?

You can find this medicine at many local pharmacy stores. However, you can choose the online pharmacy BrandRx.to. We guarantee fast delivery, affordable prices compared to local pharmacy stores, great customer support, as well as 100% original branded medicines. Moreover, if you do not get the correct medicines, you can change or return them. Additionally, on BrandRx.to you can find medicines used to treat other diseases such as diabetes, mental disorders (such as depression), kidney and liver disease, heart disease, eye disorders, erectile dysfunction (ED), and other conditions. Place the order on our website and we will bring the medicines right to your home.

Additional information

Active Ingredient

Thyroxine Sodium




120 tabs/bottle



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