Thyronorm 25 mcg Tablet: Uses, Side Effects and Dosage

Thyronorm 25 mcg tablet is prescribed by the doctor in order to control and regulate body metabolism along with the functions of the heart and the digestive tract. This medicine helps to keep the bones strong, develop the brain and control muscle growth.

Nature of Thyronorm: Thyroid replacement hormone
Composition of Thyronorm: Thyroxine/Levothyroxine (25mcg)
Uses of Thyronorm: Hypothyroidism, thyroid cancer, myxedema coma
Side effects of Thyronorm: Anxiety, vomiting, diarrhea, palpitations, nervousness, weight loss, tremors
Precautions of Thyronorm: Patients with heart problems, diabetes, allergy, underactive or overactive thyroid gland, over fifty years of age, etc. must consult a doctor before taking the medicine.

Thyronorm is also prescribed to replace the thyroid hormone in case the patient’s thyroid gland is underactive. Thyronorm 25 mcg tablet is manufactured in India by Abbott India Ltd.

Uses and Benefits of Thyronorm:

Thyronorm is used to treat the following health conditions:

  • Hypothyroidism : Thyronorm  is used to treat the condition called hypothyroidism in which the thyroid gland does not produce thyroid hormones in the required amount.
  • Thyroid Cancer : Thyronorm is used during surgery and radioiodine therapy for patients undergoing treatment for thyroid cancer . It is also used to treat or prevent enlarged thyroid gland (goiter) associated with thyroid cancer or radiation therapy.
  • Myxedema Coma : A severe form of hypothyroidism, this condition is treated by administering Thyronorm. Altered mental state, poor circulation, and poor metabolism are symptoms related to this condition. This condition may become very serious and requires immediate medical attention.

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Side Effects of Thyronorm:

Some of the minor and major side effects of Thyronorm tablet include –

Shaking and trembling of arms and feet Chest pain and discomfort
Headache Rapid or irregular heartbeat
Nausea and vomiting Thyrotoxic crisis
Diarrhea Palpitations
Abdominal cramps Weight loss
Nervousness and irritability Tremors
Sleeplessness Muscle cramps
Fever Swelling of face, tongue, lips, and throat
Excessive sweating Irregular menstruation
Temporary hair loss

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Common Dosage of Thyronorm:

Thyronorm should be taken in the exact dose and duration as suggested by the doctor. The tablet must be swallowed whole and must not be chewed, broken or crushed. For maximum efficacy, the tablet is advised to be taken on an empty stomach at least 2 hours prior to having a meal.

  • Missed Dose : A missed dose of Thyronorm must be taken as soon as it is remembered. If the missed dose is remembered when it is almost time for the next dose, then the missed dose should be skipped. It is advisable to take the scheduled dose on time. One should not take an extra dose in order to make up for the missed dose.
  • Overdose : In case of an overdose, it is advised to seek immediate medical attention in order to avoid the occurrence of any adverse effects.

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Composition and Nature of Thyronorm

The ingredients present in Thyronorm tablet are thyroxine/levothyroxine (25mcg). This ingredient is a synthetic version of a hormone produced by the thyroid gland which is known to relieve the symptoms associated with hypothyroidism such as tiredness, weight gain, and depression .

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Thyronorm 25 mcg Price in India

Name of the Medicine Price (Quantity)
Thyronorm 25mcg tablets INR 165.19 (120 tablets)

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When is Thyronorm 25 mcg prescribed?

Thyronorm is prescribed by the doctor when the patients’ thyroid gland is unable to naturally produce the thyroid hormone. For this reason, Thyronorm is used for hormone replacement therapy as well. Regular checking of the level of thyroid hormone is prescribed during the course of Thyronorm.

The Thyronorm helps to reduce the symptoms associated with hypothyroidism and improve the overall functioning of the body. Additionally, Thyronorm 25 mcg tablet may also be prescribed for the treatment of Thyroid Cancer and Myxedema Coma.

How to use Thyronorm 25 mcg tablet?

It is advisable to strictly follow the directions advised by the doctor. The tablet must be swallowed whole, without crushing or breaking it. For better absorption, it is advisable to take Thyronorm 25 mcg tablet on an empty stomach.

How Thyronorm works?

Thyronorm acts as a natural thyroxine hormone (T4) which is secreted by the thyroid gland. It gets converted into an active metabolite known as T3 in the kidney and the liver. The solubility of the thyroid hormones is increased when the thyroid hormones combine with thyroxin binding globulin and thyroxin binding prealbumin. Post this process, the Thyronorm 25 mcg tablet combines with thyroid hormone receptors in the nucleus and cytoplasm.

Thyronorm related Warnings/Precautions: When to avoid Thyronorm?

  • Alcohol: Alcohol should be avoided during the dosage period, as it may lead to severe side effects.
  • Pregnancy and Breastfeeding: A doctor must be consulted before starting the dose of this medicine as it may lead to unwanted side effects when administered by pregnant and lactating females.
  • Kidney and Liver Problems: Patients suffering from kidney and liver-related patients must exercise caution while administering Thyronorm as it may lead to worsening of their condition. Regular monitoring of liver and kidney function may be advised by the doctor. Activities requiring high mental alertness: During the administration of Thyronorm 25 mcg, driving or operating heavy machinery is considered safe as no noticeable dizziness is produced by the medicine as a side effect.
  • Thyroid Nodules: People with thyroid nodules are advised to exercise extreme caution while administering Thyronorm 25 mcg. The use of this medicine is contraindicated if the serum TSH levels are already suppressed.
  • Post-Menopausal Women: Thyronorm 25 mcg is not recommended to be used by post-menopausal women suffering from osteoporosis, heart diseases, or any other systemic illness. Long term use of the medicine may cause a decrease in bone mineral density which may further weaken the bones and increases the risks of fractures.
  • Infertility: Thyronorm 25 mcg should not be used for the treatment of male/female infertility unless it is associated with low thyroid hormone levels.
  • Elderly Patients: Thyronorm 25 mcg is advised to be used with caution among patients who are elderly as the risks of side effects are comparatively higher.
  • Other Medical Conditions: Patients with medical problems like heart disease, problems with cholesterol, hypertension, diabetes , problems with the functioning of the pituitary glands, an underactive or overactive thyroid are advised to consult the doctor before starting the dose of this tablet.

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Substitutes of Thyronorm:

Some alternative medicines for Thyronorm are:

  • Eltroxin 25 mcg tablet manufactured by Glaxo SmithKline Pharmaceuticals Ltd.
  • Thyroxinol 25 mcg tablet manufactured by Knoll Pharmaceuticals Ltd.
  • Thyrox 25 mcg tablet manufactured by Macleods Pharmaceuticals Pvt Ltd.
  • Thyroup 25 tablet manufactured by Lupin Ltd.
  • Thyrochek 25 mcg tablet manufactured by Mankind Pharma Ltd.
  • Lethyrox 25 mcg tablet manufactured by Intas Pharmaceuticals Ltd.
  • Thyrorich 25 mcg tablet manufactured by Primus Pharmaceuticals
  • Thyroactiv 25 mcg tablet manufactured by Leeford Healthcare Ltd.
  • Thyrofit 25mcg tablet manufactured by Eris Lifesciences Pvt. Ltd.
  • Sunthyroid 25mcg tablet manufactured by Akumentis Healthcare Ltd.
  • Euthyrox 25mcg tablet manufactured by Merck Ltd.
  • Thyroprime 25mcg tablet manufactured by Primus Remedies Pvt. Ltd.
  • Thyrosurz 25mcg tablet manufactured by Novartis India Ltd.
  • Ezithyx 25mcg tablet manufactured by DR Best Pharmaceuticals Pvt. Ltd.
  • Thyrine 25mcg tablet manufactured by Olcare Laboratories
  • Thyrotag 25mcg tablet manufactured by Ikon Remedies Pvt. Ltd.
  • Thyobuild 25mcg tablet manufactured by Torrent Pharmaceuticals Ltd.
  • Thyrobest 25mcg tablet manufactured by BestoChem Formulations India Ltd.
  • Thyrorite 25mcg tablet manufactured by Cadila Pharmaceuticals Ltd.
  • L-Thyroid 25mcg tablet manufactured by Johnlee Pharmaceuticals Pvt. Ltd.

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Thyronorm Interactions with Other Drugs:

Interactions with Drug

Drug interactions could change the efficacy of any prior medication and also increase the risk of any serious side effects. It is best not to alter the dose of any medication without consulting the doctor. Patients are advised to not consume Thyronorm if they are using the following drugs:

  • Carbamazepine
  • Methyldopa
  • Haloperidol
  • Phenytoin
  • Warfarin
  • Ethinyl Estradiol
  • Insulin and other anti-diabetic medicines
  • Ketamine
  • Testosterone
  • Amphetamine
  • Antacids containing calcium/magnesium/Aluminium

Interactions with Diseases

Thyronorm 25 mcg should be avoided in case of the following health conditions in order to avoid any reaction or worsening of the patient’s condition:

  • CVD (Cardiovascular Disease)
  • Adrenal Failure
  • Obesity
  • Hypertension
  • Myocardial Infarction
  • High blood pressure
  • Heart-related problems
  • Problems with cholesterol
  • Diabetes
  • Allergy
  • Underactive or overactive thyroid
  • Disturbed functioning of the pituitary glands

Interactions with Alcohol

Consumption of alcohol is not recommended during the course of Thyronorm 25 mcg. The medicine is known to cause excessive drowsiness and dizziness in a few cases. Hence consuming medicine with alcohol may increase the intensity of the mentioned symptoms or may decrease the efficacy of the medicine.

Interactions with Food

Thyronorm 25 mcg tablet is prescribed to be consumed on an empty stomach, first thing in the morning. Food items containing calcium, minerals or vitamins may interfere with the effects of the medicine. A gap of at least two hours is advised to be maintained between the consumption of Thyronorm 25 mcg and food.

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Medicines not to be taken with Thyronorm 25mcg:

Mixing two or more medicines may affect the efficacy of the drugs and may increase the risk of occurrence of side-effects. It is advisable to inform the doctor about all the on-going drugs, herbal supplements, and vitamins so that the doctor can help in managing drug interactions.

A few drugs with which Thyronorm 25mcg is known to interact with are:

  • Carbamazepine
  • Methyldopa
  • Haloperidol
  • Phenytoin
  • Warfarin
  • Ethinyl Estradiol
  • Insulin and other anti-diabetic medicines
  • Ketamine
  • Testosterone
  • Amphetamine
  • Antacids containing calcium/magnesium/aluminium

Thyronorm 25 mcg Storage Conditions:

  • It is advised to store the medicine at room temperature away from direct sunlight and heat. The ideal temperature for storing Thyronorm 25 mcg is below 25 degrees Celsius.
  • It is recommended to keep the medicine away from children and pets.


1) Does Thyronorm bear addictive properties?

Ans: No. Thyronorm does not fall into the category of addictive drugs. Medicines that are addictive by nature are classified as schedule H or X in India. It is advisable to read the package information carefully before using the medicine for specific instructions.

2) I have consumed an expired dose of Thyronorm, what should I do?

Ans: An expired dose of Thyronorm may not be harmful, but will not be as effective as an unexpired dose. It is always recommended to read the label and check the expiry date of the drug before administering it.

3) Can Thyronorm be used for hormone replacement therapy?

Ans: Yes, Thyronorm can be used for hormone replacement therapy, since it acts as a replacement for naturally produced thyroid hormones.

4) Can Thyronorm lead to weight loss?

Ans: Administering this drug may result in weight loss as a side effect in some cases. Caution must be exercised to not use this drug only for the purpose of losing weight.

5) Under what conditions should Thyronorm not be administered?

Ans: Patients suffering from the following ailments are advised against administering Thyronorm.

  • Allergy – In case of a known hypersensitivity towards the ingredients of Thyronorm 25 mcg Tablet like levothyroxine, it is not advisable to consume the medicine.
  • Thyrotoxicosis - The medicine is not recommended for use if the patient has an alleviated level of thyroid hormone in the body due to overactive glands or hyperthyroidism.
  • Adrenal Insufficiency – Patients having inadequately functioning adrenal glands must exercise caution while taking Thyronorm as it may cause various side effects.
  • Acute myocardial infarction – The medicine is not recommended to be used by patients who have recently had a heart attack.

6) What are some useful tips to be followed while administering Thyronorm?

Ans: The following useful tips can be followed in order to maximize the efficacy of Thyronorm:

  • Thyronorm 25 mcg Tablet, once prescribed, is usually continued for a lifetime. It is advisable not to discontinue or alter its use without consulting a doctor.
  • Antacid drugs and supplements such as iron, calcium or vitamins are known to interfere with the action of Thyronorm. These medicines or supplements are not advised to be taken alongside Thyronorm.
  • Women are advised to consult the gynecologist if they experience abnormal period bleeding, menstrual cramps, abdominal pain, painful periods etc.
  • Severe side effects such as flushed skin, insomnia, severe vomiting, irregular heartbeats, disturbed menstrual cycles or bloody or watery diarrhea, may require immediate medical consultation from a doctor.

7) How does Thyronorm 25 mcg Tablet modulate erythropoiesis?

Ans: The thyroid hormone of Thyronorm 25 mcg Tablet majorly impacts the erythropoiesis (the process of producing red blood cells) by enhancing the red blood cell synthesis.

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Last updated on : 26-09-2019

Disclaimer : Docprime doesn’t endorse or take any guarantee of the accuracy or completeness of information provided under this article and these are the views strictly of the writer. Docprime shall not be held responsible for any aspect of healthcare services administered with the information provided on this article.

User Comments (1)


Vinay N

Thu Jul 04 2019

What is the quantity of thyroxin production in the body , when we consume single thyronorm tablet ?.


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