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03 Dec 2019 | 11:04 AM (IST)
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Lethyrox 25 Tablet


Overview

Introduction

Lethyrox 25 Tablet is a medicine used to treat an underactive thyroid gland (hypothyroidism). It replaces the hormone that your thyroid gland does not produce enough of and helps regulate your body’s energy and metabolism.

Before you start taking Lethyrox 25 Tablet, your doctor will do a blood test to see what dose you need. Once you start taking the medicine, you will have regular blood tests to see how well it is working, and the dose may be adjusted from time to time. Take this medicine exactly as directed by your doctor. It is best taken on an empty stomach before your first meal of the day. You should take this medicine regularly to get the most benefit from it and it may be several weeks before your symptoms start to improve. Keep using this medicine even if you feel well. You may need to take it for the rest of your life. If you stop taking it your symptoms are likely to come back.

The most common side effects of this medicine are caused by taking a bigger dose than you need. Possible side effects include palpitations (irregular heart beat), vomiting, anxiety, diarrhea, weight loss, nervousness or restlessness. Most side effects will disappear once you are on the right dose. Some people may suffer a severe reaction to high levels of thyroid hormone. Call your doctor straight away if you have a very high temperature, fast or irregular heart rate, low blood pressure, yellowness in eye/skin, confusion or fits.

Lethyrox 25 Tablet may cause weight loss but should not be prescribed or taken to treat obesity. If you become pregnant while taking this medicine, inform your doctor right away as the dose may have to be increased/readjusted. Many other drugs affect the way this medicine works. Ask your doctor for advice if you are taking any other medications.

Uses of Lethyrox Tablet

Side effects of Lethyrox Tablet

Common
  • Palpitations
  • Vomiting
  • Anxiety
  • Diarrhea
  • Weight loss
  • Nervousness
  • Restlessness

How to use Lethyrox Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Lethyrox 25 Tablet is to be taken empty stomach.

How Lethyrox Tablet works

Lethyrox 25 Tablet is a synthetic version of a hormone produced by the thyroid gland. It works by replacing the thyroid hormones that your thyroid gland cannot produce in a sufficient quantity, and relieves the symptoms of hypothyroidism (tiredness, weight gain, and depression).

Safety Advice

Alcohol
SAFE
Consuming alcohol with Lethyrox 25 Tablet does not cause any harmful side effects.
Pregnancy
SAFE IF PRESCRIBED
Lethyrox 25 Tablet is safe to use during pregnancy. Most studies have shown low or no risk to the developing baby.
Breastfeeding
SAFE IF PRESCRIBED
Lethyrox 25 Tablet is safe to use during breastfeeding. Human studies suggest that the drug does not pass into the breastmilk in a significant amount and is not harmful to the baby.
Driving
SAFE
Lethyrox 25 Tablet does not usually affect your ability to drive.
Kidney
CONSULT YOUR DOCTOR
There is limited information available on the use of Lethyrox 25 Tablet in patients with kidney disease. Please consult your doctor.
Liver
CONSULT YOUR DOCTOR
There is limited information available on the use of Lethyrox 25 Tablet in patients with liver disease. Please consult your doctor.

What if you forget to take Lethyrox Tablet?

If you miss a dose of Lethyrox 25 Tablet, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular schedule. Do not double the dose.

Alternate Brands

For informational purposes only. Consult a doctor before taking any medicines.
Lethyrox 25 Tablet
₹1.16/Tablet
Eltroxin 25mcg Tablet
Glaxo SmithKline Pharmaceuticals Ltd
₹1.41/Tablet
21% costlier
Thyrox 25 Tablet
Macleods Pharmaceuticals Pvt Ltd
₹1.43/Tablet
24% costlier
Thyrofit 25 Tablet
Eris Lifesciences Ltd
₹1.21/Tablet
4% costlier
₹1.48/Tablet
27% costlier
Sunthyroid 25mcg Tablet
Akumentis Healthcare Ltd
₹12.25/Tablet
956% costlier

Quick Tips

  • Lethyrox 25 Tablet should be taken on an empty stomach (ideally, first thing in the morning). No food, milk, or tea should be taken 1 hour before and 2 hours after taking this medicine.
  • It may take 6 to 8 weeks to get the full effect.
  • For most people, Lethyrox 25 Tablet is a lifelong medication. Do not discontinue it without discussing with your doctor.
  • Inform your doctor if you have diarrhea, nervousness, irritability, sleep disturbances, shaking hands, or chest pain. Your doctor may adjust your dose.
  • Leave a gap of at least 4 hours before taking any antacids, calcium or iron supplements, and multivitamins, as these may interfere with the effect of the medicine.
  • Get your hormone levels checked regularly and inform your doctor if you notice a significant change in your body weight. The dose may need to be adjusted.
  • Inform your doctor before changing the brand of Lethyrox 25 Tablet as all brands may not have the same effect.

Patient Concerns

arrow
Hypothyroidism 100 mg tablet daily.and premature ovarian failure.
Dr. Manju Singh
Psychiatrist
OK. I would like suggest you that please consult with your nearest homeopathy doctor.
I was having hypothyroidism and taking 25 mcg tablet. recent thyroid profile indicated normal thyroid function so doctor discontinued medicine. can I take some ayurvedic medicine so that I do not get thyroid problem again in future. Besides after stopping medicine I am having scanty periods though they are regular in time.
Dr. Ankur Kumar Tanwar
Ayurveda
Ok please,attach all your reports first
arrow
Do you have any questions related to Lethyrox 25 Tablet ?

User Feedback


FAQs

Q. What happens when excess dose of Lethyrox is taken?

Increased levels of Lethyrox may speed up the body processes (functions such as respiration, movemements, etc). Additionally, you may experience nervousness, anxiety, rapid heartbeat, hand tremors, excessive sweating, weight loss, and sleep problems.

Q. How long do I need to take Lethyrox?

Take Lethyrox as long as your doctor has recommended. Usually, you will have to take it life long. Do not stop taking the medicine, as your symptoms of low levels of thyroid hormone may reoccur.

Q. How should Lethyrox be taken?

Take Lethyrox exactly as advised by your doctor. Lethyrox should be taken orally preferably before breakfast or as a first meal of the day. It should be swallowed whole with plenty of water.

Q. Being a diabetic what should I be aware of while taking Lethyrox?

Lethyrox may raise blood sugar levels and may affect the working of other anti-diabetic medicines which you might be taking. Hence, dose adjustment may be required. Consult your doctor who will help you with dose management.

Q. What does thyroxine do? Why is it important?

Thyroxine hormone controls how much energy your body uses. It plays an important role in regulating your body weight, muscle strength, body temperature, and even your mood. Along with that, it is important for your digestion, heart muscles, brain development, and bone health.

Q. Does Lethyrox affect contraception?

Oral birth control pills containing both oestrogen and progesterone may reduce the amount of Lethyrox in your body and therefore the dose of Lethyrox may have to be increased.

Related Products

Disclaimer: 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover all possible side effects, drug interactions or warnings or alerts. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.
References
  1. Brent GA, Koenig RJ. Thyroid and Anti-Thyroid Drugs. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. 12th ed. New York, New York: McGraw-Hill Medical; 2011. pp. 1142-43.
  2. Dong BJ, Greenspan FS. Thyroid & Antithyroid Drugs. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. pp. 674-75.
  3. Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 796-98.
  4. Levothyroxine. Barnstaple, UK: Actavis; 2018. [Accessed 04 Apr. 2019] (online) Available from:External Link
  5. Levothyroxine sodium. East Sussex, UK: Custom Pharmaceuticals Ltd.; 2018. [Accessed 04 Apr. 2019] (online) Available from:External Link
  6. Levothyroxine. Bohemia, New York: Jerome Stevens Pharmaceuticals, Inc. [Accessed 04 Apr. 2019] (online) Available from:External Link
Manufacturer/Marketer Address
Chinubhai Centre, Off. Nehru Bridge, Ashram Road, Ahmedabad - 380009. Gujarat. India.
A licensed pharmacy from your nearest location will deliver Lethyrox 25 Tablet. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your prescription and the availability of this medicine.
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