express delivery
Express delivery to
Select Pincode
Search for Medicine and Healthcare items

Lethyrox 75mcg Tablet

30 Tablet(s) in Bottle
MRP 145.60
128.1312% OFF
Inclusive of all taxes
7 days return policyRead More
All the Products are packed and stored Safely

Lethyrox 75 MCG Description

Lethyrox Tablet is a prescription medicine used in the management of Hypothyroidism. Hypothyroidism is a medical condition where the thyroid gland does not produce sufficient thyroid hormones. It is

characterised by tiredness, lack of energy, weight gain, constipation, hair loss, increased sensitivity to a cold, feeling low, and irregular menstrual cycle. Lethyrox Tablet contains Levothyroxine as its active ingredient. It is a synthetic form of a naturally occurring hormone called Thyroxine produced by the thyroid gland. The mode of action of Lethyrox Tablets involves replacing thyroid hormones, which the thyroid gland cannot produce in a sufficient quantity, thus relieving the symptoms of hypothyroidism., Lethyrox Tablet duration and dosage should be as advised by your doctor. Avoid abrupt stoppage of Lethyrox Tablet without consulting your doctor, as it can cause clinical worsening of your condition. Tell your doctor about all other medications you are taking, as some may affect or be affected by this medicine.


Product Summary

Offer Price₹128.13
You Save₹17.47 (12% on MRP)
ContainsThyroxine / Levothyroxine Sodium(75.0 Mcg)
UsesTreatment of Hypothyroidism
Side effectsHeadache, Nausea, Vomiting, Diarrhoea, Increased Appetite, Sensitivity to Heat, Sweating, Weight Loss.
Check more medicines with composition as Thyroxine / Levothyroxine Sodium(75.0 Mcg)
6 Generic Alternate(s)
Contains same composition as Lethyrox 75mcg Tablet
View All

Uses of Lethyrox 75 MCG

  • As per USFDA, Lethyrox Tablet is used for
  • Management of Primary Hypothyroidism (problem in the thyroid gland)
  • Management of Secondary Hypothyroidism (problem is in the pituitary gland)
  • Management of Tertiary Hypothyroidism (problem is in the hypothalamus)

Contraindications of Lethyrox 75 MCG

  • If you are allergic to a component of the Lethyrox Tablet, i.e. Levothyroxine.
  • If you have an untreated adrenal gland disease.
  • If you have a thyroid disorder called Thyrotoxicosis (excess of thyroid hormone in the bloodstream).
  • If you have heart disease, including Angina, Heart Failure or Heart Attack.
  • If you have a high blood pressure.
  • If you have Diabetes, your antidiabetic medicine dose may need to be adjusted because levothyroxine can raise blood sugar levels.
  • If you have severe kidney disease.
  • If you have severe liver disease.
  • If you are pregnant or breastfeeding.

Side effects of Lethyrox 75 MCG

  • Headache
  • Nausea
  • Vomiting
  • Diarrhoea
  • Increased Appetite
  • Sensitivity to Heat
  • Sweating
  • Weight Loss

Precautions and Warnings of Lethyrox 75 MCG



Can I take Lethyrox Tablet during pregnancy?
Lethyrox Tablet is probably safe during pregnancy, however, you must consult a doctor before taking it. A pregnant woman may require a higher dose of Lethyrox Tablet. If hypothyroidism is detected in between pregnancies, it is essential to start the treatment with thyroxine after consulting a doctor immediately. Low thyroid hormone levels in the mother can lead to various congenital disabilities in the baby or even cause miscarriage. Regular monitoring of TSH levels is recommended.

Breast Feeding

Can I take Lethyrox Tablet while breastfeeding?
Lethyrox Tablet may get excreted from the breast milk in lower concentrations, and it is considered safe to be used in lactating women as tiny amounts of it are too small to affect your baby. Milk production in women with hypothyroidism sometimes gets affected due to low levels of thyroxine, as it plays a crucial role in the production of milk and breast development. It is always necessary to consult your doctor before taking this medicine


Can I drive if I have consumed Lethyrox Tablet?
Lethyrox Tablet has no or negligible effect on driving. However, Lethyrox Tablet may cause side effects like dizziness, nausea and vomiting. Avoid driving if you think these side effects can interfere with your driving ability.


Can I consume alcohol with Lethyrox Tablet?
Although there is no known interaction with alcohol along with Lethyrox Tablet. However, it is recommended to consult your doctor before taking Lethyrox Tablet if you have a habit of drinking alcohol.

Other General Warnings

Talk to your doctor if
  • You have any allergic reactions after taking Lethyrox Tablet.
  • You have chest pain or other heart diseases.
  • You are an elderly patient.
  • You have diabetes, the dose of anti-diabetic medicines needs to be adjusted because this medicine can raise the blood sugar level.
  • You experience any severe side effects persistently.
  • You are pregnant or planning to get pregnant.
  • You are taking other prescription medications, herbal products, vitamins and nutritional supplements or plan to take as there is a chance of interaction.

Mode of Action of Lethyrox 75 MCG

How Does It Work?

Lethyrox Tablet contains Levothyroxine-75mcg as its active ingredient. Levothyroxine is a synthetic version of the body’s natural thyroid hormone: Thyroxine. Levothyroxine acts as a substitute for the...
Read more

Directions for Use of Lethyrox 75 MCG

  • Take Lethyrox Tablet exactly as prescribed by the doctor.
  • Take a Lethyrox Tablet as a whole with a full glass of water. Do not break or chew the tablet.
  • Take it on an empty stomach, preferably one-half to one hour before breakfast or as your doctor suggest.
  • Take Lethyrox Tablet on a regular schedule, preferably at the same time every day.
  • Do not exceed the recommended dosage of Lethyrox Tablet as it can lead to overdose.
  • Do not take Lethyrox Tablet with other medications without consulting your doctor.

Interactions of Lethyrox 75 MCG

Interactions with other medicines

  • Some medicines can affect how Lethyrox Tablet works, or this medicine itself can reduce the effectiveness of other medicines taken at the same time. Tell your doctor about all the prescription or non-...
    Read more
  • Lethyrox Tablet increases the effect of anticoagulants such as Warfarin, and it may be necessary to reduce the anticoagulation dosage to avoid bleeding chances.
  • Lethyrox Tablets may increase Blood sugar levels. So, the dosage of antidiabetic agents should be adjusted accordingly.
  • Medicines like Tricyclic antidepressants (e.g. amitriptyline, imipramine and dosulepin) response may be accelerated because Lethyrox Tablet increases sensitivity to catecholamines. Their concomitant a...
    Read more
  • Lethyrox Tablet enhances the effects of sympathomimetic agents (e.g. adrenaline or phenylephrine).
  • Lethyrox Tablet accelerates the metabolism of B-blocker (propranolol, atenolol and sotalol),
  • Anticonvulsant medicine, such as carbamazepine and phenytoin, may enhance the metabolism of Lethyrox Tablet and may displace them from plasma proteins.
  • Effects of Lethyrox Tablet may be decreased by sertraline ( anti-depressant).
  • Metabolism of Lethyrox Tablet accelerated by medicines like rifampicin, barbiturates, and primidone and may increase requirements for levothyroxine (thyroxine) in hypothyroidism.
  • Estrogen, estrogen-containing products (including hormone replacement therapy) and oral contraceptives may increase the requirement of thyroid therapy dosage (Lethyrox Tablet). Likewise, androgens and...
    Read more

Interactions with food items

  • Avoid taking Grapefruit juice, soybean, walnuts, and cottonseed meal. It can reduce the effect of Lethyrox Tablet.

Storage and disposal of Lethyrox 75 MCG

Store Lethyrox Tablet at room temperature in a cool and dry area, away from humidity and direct sunlight. Keep the medication away from children and pet animals in a locked cabin. Do not remove Lethyr...
Read more

Dosage of Lethyrox 75 MCG


Overdose of Lethyrox Tablets can cause fever, headache, muscle cramps, diarrhoea, insomnia, anxiety, restlessness, flushing, sweating, chest pain, irregular heartbeat, etc. Seek emergency medical trea...
Read more

Missed a Dose

Missed doses of Lethyrox Tablet should be taken right away unless it is almost time for the next dose. In that case, you should skip the forgotten dose (rather than taking a double dose) or call your ...
Read more

Content Details


Dr. Zishan Ahmad

Final year MBBS Student


Dr. Varsha Parihar

MBBS, MD (Community Medicine)

Frequently Asked Questions (FAQs)


Q: How long should I take the Lethyrox Tablet?

A: Lethyrox Tablet is usually prescribed lifelong. If you stop taking Lethyrox Tablet, your symptoms will likely come back. Consult your doctor if you need more information about it.

Q: Can I Stop taking the Lethyrox Tablet on my own after my symptoms have been improved?

A: No, you should never stop taking Lethyrox Tablet without consulting a doctor. You must take it for as long as the doctor recommends. It is usually prescribed for a longer duration or lifelong. If you stop taking Lethyrox Tablet suddenly, your symptoms will likely come back.

Q: I am a diabetic patient. Can I take a Lethyrox Tablet?

A: Yes, Lethyrox Tablets can be taken in a diabetic condition. However, it is mandatory to consult and inform your doctor about diabetes as there are chances that Lethyrox Tablet can affect the blood-glucose-lowering action of anti-diabetic medicines, and proper dose adjustment is required.
Product Details
Country of Origin
Expires on or After
Last Updated on: 18 Apr 2022 | 05:22 PM (IST)

Health Articles

The information provided herein is supplied to the best of our abilities to make it accurate and reliable as it is published after a review by a team of professionals. This information is solely intended to provide a general overview on the product and must be used for informational purposes only. You should not use the information provided herein to diagnose, prevent, or cure a health problem. Nothing contained on this page is intended to create a doctor-patient relationship, replace or be a substitute for a registered medical practitioner's medical treatment/advice or consultation. The absence of any information or warning to any medicine shall not be considered and assumed as an implied assurance. We highly recommend that you consult your registered medical practitioner for all queries or doubts related to your medical condition. You hereby agree that you shall not make any health or medical-related decision based in whole or in part on anything contained in the Site. Please click here  for detailed T&C.
Our Payment Partners