Online Doctor Consultation & Medicines
  1. Home
  2. Euthyrox 75 Tablet 100's

Euthyrox 75 Tablet 100's


Merck Ltd

Pack Of


In Stock

Prescription Required
Product Details

About Euthyrox 75 Tablet 100's

Euthyrox 75 Tablet 100's are synthetic thyroid hormones which work by replacing the thyroid hormone in the body when the natural production of thyroid hormones is not sufficient to meet the needs of the body. Euthyrox 75 Tablet 100's is primarily taken for treatment of hypothyroidism or low secretion of thyroid hormone. It comprises levothyroxine which is a synthetic thyroid hormone that is chemically similar to thyroxine produced by our thyroid gland. Levothyroxine helps to replace missing thyroid hormone and/or to relieve stress on the thyroid gland.

Hypothyroidism is a chronic condition in which our thyroid gland (located below the throat in the neck) is not able to produce enough thyroid hormone. Thyroid hormones are composed of triiodothyronine (T3) and thyroxine (T4) which controls the body's metabolism. In the condition of underactive thyroid body’s metabolism slows down and the person feels less energetic. Other symptoms include easy fatigability, constipation, weight gain, feeling cold even in warm weathers, dry skin or too much or too less menses (in women) or even low mood. Treatment of hypothyroid is essential to restore the normal body metabolism (basal metabolic rate).

If you are experiencing any of the above symptoms, your doctor will advise you to undertake a blood test called 'thyroid function test' which checks three hormones related to thyroid - TSH, T3, T4. High TSH and low T3/T4 indicates that your thyroid gland is not functioning normally. The dose of Euthyrox 75 Tablet 100's is adjusted by your doctor on the basis of your body weight and thyroid function test report. It may take some weeks for the medicine to fully show its effects. Regular monitoring of thyroid function is advised to ensure that you receive the optimum dose of Euthyrox 75 Tablet 100's.

Take Euthyrox 75 Tablet 100's as prescribed by your doctor once daily, on an empty stomach, one-half to one hour before breakfast with a full glass of water. Euthyrox 75 Tablet 100's usually does not have major side effects when taken regularly in the prescribed dosage but, overdosage may cause headache, nervousness, sleeplessness, irritability, diarrhoea, muscle spasm, weight loss, feeling hot even in cool environments, menstrual irregularities (in women) and skin rash. If you missed a dose do not take a double dose as it may produce serious side effects.

Your doctor may prescribe calcium or vitamin D supplements alongside Euthyrox 75 Tablet 100's for your bone health. Euthyrox 75 Tablet 100's should not be used for the purpose of weight loss alone. People affected with diabetes taking Euthyrox 75 Tablet 100's may have altered blood glucose control that may result in increased antidiabetic agents or insulin requirements. Hence, it is recommended that people with diabetes should contact a doctor and carefully monitor their glucose level after starting, changing or discontinuing thyroid hormone therapy.

Uses of Euthyrox 75 Tablet 100's

Hypothyroidism (underactive thyroid)

Medicinal Benefits

Euthyrox 75 Tablet 100's controls an underactive thyroid gland (hypothyroidism) and minimizes symptoms of low thyroid hormones like unknown weight gain, fatigue, sensitivity to the cold and many more. Thus, it helps in replacing the body's own natural thyroid hormone essential for maintaining both mental and physical health. However, Euthyrox 75 Tablet 100's should not be used for the treatment for weight loss or obesity.

Directions for Use

You can take this medicine once daily in the morning, on an empty stomach, 1/2 to 1 hour before breakfast with a full glass of water. However, if you have any doubt regarding the intake of Euthyrox 75 Tablet 100's you can consult a doctor for this.


Store in a cool and dry place away from sunlight

Side Effects of Euthyrox 75 Tablet 100's

Like all medicines, Euthyrox 75 Tablet 100's can cause side effects, although not everybody gets them. Side effects are usually due to inappropriate dosage or irregular consumption. Some people may experience irregular heartbeat (palpitations), muscle spasm, headache, nervousness, irritability, sleeplessness, tremors, muscle weakness, increased appetite, weight loss, diarrhoea, heat intolerance, menstrual irregularities and skin rash. If taken in the right dosage as prescribed by your doctor, these unpleasant side effects are usually not seen. However, in case these symptoms become bothersome, speak with your doctor.

In-Depth Precautions and Warning

Drug Warnings

Foods like soybean flour, cottonseed meal, cabbage, cauliflower, walnuts, dietary fibre, calcium and calcium-fortified juices may affect the working of Euthyrox 75 Tablet 100's. Hence, avoid the intake of these foods within several hours of dosing if possible. Euthyrox 75 Tablet 100's should not be administered to patients with acute myocardial infarction and high blood pressure patients. So, close clinical monitoring of heart function is recommended before taking Euthyrox 75 Tablet 100's.

Safety Advice

  • Safety Warning


    You are recommended not to consume alcohol along with Euthyrox 75 Tablet 100's to avoid unpleasant side-effects.

  • Safety Warning


    Only consume Euthyrox 75 Tablet 100's, if you are prescribed by a doctor. However, the need for levothyroxine may increase during pregnancy due to increased blood levels of oestrogen (female sex hormone) hence, monitoring of thyroid function should be done regularly both during and after pregnancy. In this case, thyroid hormone dose can be adjusted by your doctor.

  • Safety Warning

    Breast Feeding

    Even during high dose levothyroxine therapy, the amount of Euthyrox 75 Tablet 100's passing into the breast milk during lactation is very low and therefore harmless. However, if you have any doubt consult a doctor.

  • Safety Warning


    Euthyrox 75 Tablet 100's does not interfere with your ability to drive.

  • Safety Warning


    Euthyrox 75 Tablet 100's can be taken in the prescribed dose as it does not affect the liver.

  • Safety Warning


    Euthyrox 75 Tablet 100's can be taken in the prescribed dose as it does not affects the kidney. However patient with adrenal gland complication or problem should consult a doctor before its intake.

Habit Forming


Diet & Lifestyle Advise

  • Eating the right nutrients and taking a regular dose of your prescribed medications may help reduce your symptoms and improve your thyroid function. Iodine, zinc and selenium are beneficial for people with hypothyroidism. However, it’s best to avoid iodine and selenium supplements unless your doctor advises you to take them.
  • In hypothyroidism usually, there is a loss of calcium (hypocalcemia) and Vitamin D in our body. In such a case, people affected with hypothyroidism should opt for calcium-enriched foods.
  • People with hypothyroidism usually have a slower metabolism and eating more protein may help boost your metabolism.
  • Daily yoga and aerobics exercises can help in boosting the metabolism.
  • People with hypothyroidism should prefer the intake of more vegetables, fruits and lean meats. These foods are low in calories and may help prevent weight gain.
  • Avoid taking Goitrogens (agents which interfere with the normal function of the thyroid gland) which generally includes soy foods (tofu), cabbage, broccoli, kale, cauliflower, spinach, sweet potatoes, cassava, peaches, strawberries, millet, pine nuts, peanuts, etc.

Special Advise

  • Doses beyond the range of may produce serious or even life-threatening manifestations of toxicity. Thus, if you forget to take Euthyrox 75 Tablet 100's anytime, take the medicine as soon as you remember to take it. However, if it is almost time for your next dose, you make avoid the skipped dose and continue with your regular regime as advised by your doctor.
  • Euthyrox 75 Tablet 100's should not be used for the treatment of obesity or for weight loss.
  • Patients with adrenaline or pituitary gland problem, heart diseases, diabetes, clotting disorders should not take Euthyrox 75 Tablet 100's without consulting doctor as the dose may need to be adjusted.
  • Diabetes patients taking Euthyrox 75 Tablet 100's should contact the doctor before starting this medicine as it may worsen glycaemic control and may result in increased antidiabetic pills or insulin therapy.
  • Regular intake of Euthyrox 75 Tablet 100's may decrease bone mineral density, particularly in post-menopausal women. Hence, consult your doctor who might prescribe you the lowest dose possible for your bone health.
  • If you are taking Euthyrox 75 Tablet 100's prior to any surgery let your doctor know about this.
  • Thyroid function tests are usually done on an empty stomach after overnight (6-8 hrs) fasting.
  • Patients with rare hereditary problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption should not take this medicine.


Other Information (EUT0013)

This item is Not Returnable.

Expires on or after - Mar-22

Patients Concern

Disease/Condition Glossary

Hypothyroidism, or underactive thyroid, is a chronic condition when the thyroid gland does not make enough thyroid hormones to meet your body’s needs. When there is a low level of thyroid hormones, our body’s functions and metabolism slow down. Symptoms of hypothyroidism includes fatigueness, increased sensitivity to cold, constipation, dry skin, unexplained weight gain, puffy face, hoarseness of voice and muscle weakness. There may be loss of Calcium and Vitamin D in some cases of hypothyroidism.


No. Euthyrox 75 Tablet 100's is only indicated for hypothyroidism and not for weight loss.

No. Euthyrox 75 Tablet 100's should be not be taken with food. Please take it empty stomach at least half an hour before tea/coffee/breakfast in the morning.

If you observe symptoms like sudden weight gain, fatigue, increased sensitivity to cold, dry skin, constipation, puffy face, muscle weakness, anxiety or voice hoarseness. You should consult an Endocrinologist/Physician for further treatment.

You need to have a thyroid profile test which includes parameters like T3, T4 and TSH every month. You will observe a decrease in your TSH level after regular intake of Euthyrox 75 Tablet 100's as prescribed by your doctor.

Your thyroid hormone may vary depending on your age, sex, and condition (like pregnancy, chronic condition or complication). For example, a 30-year-old woman may have normal TSH around 4.2 mU/L, while a 90-year-old man may reach 8.9 mU/L at their upper limits. Besides this, your level of stress, diet, and medications and menses period can fluctuate your level of thyroid hormone.

Yes. Limit salt intake less than 2300 mg daily. Too much salt intake can increase your blood pressure especially when you have an underactive thyroid.

Yes. Based on the thyroid profile test, an Endocrinologist may advise a pregnant woman to take a high dose of Euthyrox 75 Tablet 100's to meet the high-level thyroid hormone requirement. Treatment of underactive thyroid is vital during pregnancy, as low levels of thyroid hormone in the mother may harm both mother and baby.

A TSH test can be done once a year in case of hypothyroidism or under active thyroid to check whether your thyroid hormone levels are in normal range or not.

Do not take double doses in case you missed the dose of Euthyrox 75 Tablet 100's. If accidentally you have taken too much of Euthyrox 75 Tablet 100's, it may cause side effects like nervousness, insomnia, mild elevation of temperature, blood pressure elevation or loose stools. In this case immediately contact the doctor and take only when your doctor has allowed to take it.

Pregnant women with uncontrolled hypothyroidism or underactive thyroid can get low haemoglobin (anaemia), high blood pressure, muscle pain and weakness. Besides this, it can also cause an increased risk of miscarriage, premature birth (before 37 weeks of pregnancy) or even stillbirth. Also, untreated hypothyroidism during pregnancy can cause hypothyroid even in the baby. So, it is advisable to consult an endocrinologist if you are diagnosed with hypothyroidism.

Hair loss may occur during the first few months of treatment. This effect is usually temporary as your body adjusts to this medication. If this effect persists or worsens, tell your doctor for further treatment.

Long term use of Euthyrox 75 Tablet 100's may cause decreases bone mineral density. Consult your doctor for further advice.


Euthyrox 75 Tablet 100's

Manufacturer/Marketer address

L-2, J.R. Complex, Gate No. 4, Village Mandoli, Delhi-110 093, India

Country Of Origin


Euthyrox 75 Tablet 100's

Euthyrox 75 Tablet 100's

MRP: 144.50

Inclusive of all taxes


100 Tablet in 1 Bottle