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Written By ,
Reviewed By Dr Aneela Siddabathuni , MPharma., PhD
Last Updated Oct 22, 2024 | 7:37 PM IST
Rethyro 62.5 mcg Tablet is used to treat hypothyroidism (underactive thyroid). It contains Thyroxine sodium, which replaces or provides more thyroid hormone in the body when the body is unable to naturally produce enough thyroid hormone (Thyroxine) to meet the requirements of the body. Thus, it helps to restore thyroid hormone for proper digestion, muscle functioning, brain development, and maintenance of bones. It may cause side effects such as headache, diarrhoea, nausea, vomiting, sweating, muscle cramps, shaking (usually of hands) and feeling restless or excitable, or problems sleeping. Before taking this medicine, you should tell your doctor if you are allergic to any of its components or if you are pregnant/breastfeeding, and about all the medications you are taking and pre-existing medical conditions.
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Manufacturer/Marketer

Tas Med India Pvt Ltd

Consume Type

ORAL

Return Policy

Not Returnable

Expires on or after

Apr-26

for this medicine

About Rethyro 62.5 mcg Tablet

Rethyro 62.5 mcg Tablet belongs to 'thyroid agents', primarily used to treat underactive thyroid (hypothyroidism). Hypothyroidism is a chronic disorder, which happens when the thyroid gland (located in the front lower part of the neck), is unable to make enough thyroid hormone. The thyroid gland is responsible for releasing hormones, which are composed of tri-iodothyronine (T3) and thyroxine (T4), which helps the body to regulate and use energy. The thyroid controls functions of the heart and digestive system, without the right amount of these hormones, the body is unable to function properly. Early symptoms of this disease are fatigue and weight gain. While other symptoms include feeling cold even in warm weather, dry skin or too much or too few menses (in women), easy fatigueness, constipation, weight gain,  or even lack of energy. Right diagnosis and treatment of hypothyroid are important to restore normal physical and mental activity.

Rethyro 62.5 mcg Tablet contains 'Thyroxine sodium' which replaces or provides more thyroid hormone in the body when the body is unable to naturally produce enough thyroid hormone (Thyroxine) to meet the requirements of the body. In this way, Rethyro 62.5 mcg Tablet helps to replace missing thyroid hormone for proper digestion, muscle functioning, brain development, and maintenance of bones.

Take Rethyro 62.5 mcg Tablet exactly in the same way as suggested by the doctor. Usually, Rethyro 62.5 mcg Tablet does not cause any undesirable effects in the body. Still, its overdose may cause diarrhoea, muscle spasm, weight loss, feeling hot even in cool environments, headache, nervousness, sleeplessness, irritability,  menstrual irregularities (in women), and skin rash. Thus, it is better to take Rethyro 62.5 mcg Tablet is the same dose, and if you by chance, miss it then do not double the dose for the sake of getting results fast. If a person experiences any of these signs, then their doctor may suggest them to undertake a blood test called 'thyroid function test' which checks three hormones related to thyroid - TSH, T3, T4 to check if the thyroid gland is functioning normally or not.

Rethyro 62.5 mcg Tablet can not be given via mouth in patients dealing with myxedema coma. Your doctor may suggest calcium or vitamin D supplements with Rethyro 62.5 mcg Tablet to improve bone density associated with thyroid hormone overreplacement. Consult with your doctor if the symptoms of low thyroid hormone-like weight gain, slow heartbeat, or sensitivity to cold, tiredness, muscle aches, constipation, dry skin, worsens or persists after a couple of days of taking this drug.  If Rethyro 62.5 mcg Tablet is taken by persons having diabetes mellitus, then it may worsen glycemic control and result in increased antidiabetic agent or insulin requirements. Thus it is important to carefully monitor the blood glucose level while starting, changing, or stopping thyroid hormone with Rethyro 62.5 mcg Tablet . The doctor decides the right dose of Rethyro 62.5 mcg Tablet after checking the body weight and thyroid function test report. Regular monitoring of thyroid function is important to check the effectiveness of the medicine.

Uses of Rethyro 62.5 mcg Tablet

Treatment of Hypothyroidism (underactive thyroid)

Medicinal Benefits

Rethyro 62.5 mcg Tablet is a synthetic thyroid hormone that is prescribed for the treatment of underactive thyroid (hypothyroidism). Thyroxine is the important hormone released by the thyroid gland into the bloodstream. It plays an important role in the functioning of the heart, digestion, muscles, and brain development. Rethyro 62.5 mcg Tablet acts in the same manner as natural Thyroxine does, as it replaces the natural hormone produced by the thyroid gland so that body has enough thyroxine hormone to regulate the body's needs and metabolism. In this way, it helps to replace missing thyroid hormone and/or to relieve stress on the thyroid gland.

Directions for Use

Swallow Rethyro 62.5 mcg Tablet as a whole with water; do not crush, break or chew it.

Storage

Store in a cool and dry place away from sunlight

Side Effects of Rethyro 62.5 mcg Tablet

  • Heat intolerance
  • Menstrual irregularities
  • Muscle weakness
  • Increased appetite
  • Weight loss
  • Diarrhoea
  • Irregular heartbeat (palpitations)
  • Muscle spasm
  • Headache,
  • Nervousness
  • Irritability
  • Sleeplessness
  • Tremors
  • Skin rash

Drug Warnings

Take Rethyro 62.5 mcg Tablet in the same dosing strength as suggested by the doctor without increasing or decreasing it, as doses beyond the range may produce serious or even life-threatening reactions in the body. A person should consult with their doctor if they have heart diseases, diabetes, clotting disorders, adrenaline, or pituitary gland problem, as the dose needs to be adjusted in this case. If a person has diabetes then this medicine may affect their blood sugar levels and can worsen glycaemic control so it is advised to go for regular blood sugar checkups. Taking Rethyro 62.5 mcg Tablet on regular basis can reduce bone mineral density, particularly in post-menopausal women. Hence, it is best to talk to the doctor who might prescribe you the  dose according to your bone health. Regular thyroid function tests are important while taking this medicine on an empty stomach after overnight (6-8 hrs) fasting. Rethyro 62.5 mcg Tablet is not allowed to use in persons with acute myocardial infarction and high blood pressure. Taking this medicine for a long duration may affect bone health leading to osteoporosis which can increase the risk of bone fractures. Hence, a person should consult with their doctor as their doctor may prescribe calcium or vitamin D supplements alongside Rethyro 62.5 mcg Tablet for improving bone health. 
 

Drug Interactions

Drug-Drug Interaction: Certain medications that interact with Rethyro 62.5 mcg Tablet include anti-diabetic drug (metformin), neuro-related medicine (amphetamine), and acidity medicine (cimetidine, esomeprazole). 

Drug-Food Interaction: Rethyro 62.5 mcg Tablet may interact with certain foods like soybean flour, cottonseed meal, walnuts, dietary fibre, calcium, and calcium-fortified juices. 

Drug-Disease Interaction: Rethyro 62.5 mcg Tablet should not be used in conditions that include untreated or uncontrolled adrenal gland disorder, a thyroid disorder called thyrotoxicosis, or any recent or current symptoms of a heart attack.

Drug-Drug Interactions Checker List

  • METFORMIN
  • AMPHETAMINE
  • ESOMEPRAZOLE
  • CIMETIDINE

Habit Forming

No

Diet & Lifestyle Advise

  • The thyroid gland requires iodine for making its hormone so one should include iodized table salt in their diet. However eating too much can also lead to hyperthyroidism, so take it at a limited level, not too much or not too low.
  • A person should eat the right nutrients and a regular dose of Rethyro 62.5 mcg Tablet , which may be linked with hypothyroidism,  eat a wide variety of vegetables in your diet.
  • People dealing with hypothyroidism, usually notice the loss of calcium (hypocalcemia) and Vitamin D in their body so it is better to include calcium-enriched foods in your diet.
  • Persons dealing with hypothyroidism usually have a slower metabolism so eating more amount of protein like eggs, milk, pulses, may help boost the metabolism.
  • A person should engage in daily yoga and aerobics exercises that keep a person relaxed and boost their metabolism.
  • Persons dealing with hypothyroidism should prefer to take more vegetables, fruits, and lean meats as these foods are low in calories and may help prevent weight gain.
  • A person should not take Goitrogens (agents that interfere with the normal function of the thyroid gland) like soy foods (tofu), cabbage, broccoli, kale, cauliflower, spinach, cassava, peaches, strawberries, millet, pine nuts,  sweet potatoes, peanuts, etc.
     

Special Advise

  • Regular thyroid function tests (T3, T4 and TSH) is required if you are taking Rethyro 62.5 mcg Tablet . 

  • Rethyro 62.5 mcg Tablet is not indicated for the treatment of obesity or weight loss.

  • Regular monitoring of blood sugars may be advised by your doctor, as Rethyro 62.5 mcg Tablet causes fluctuation in blood sugar levels.

Disease/Condition Glossary

Hypothyroidism: It is a chronic condition in which the thyroid gland of the body does not produce enough thyroid hormones to fulfil the needs of the body. The thyroid gland is a small, butterfly-shaped gland that is present at the front of your neck and is responsible for releasing hormones (tri-iodothyronine (T3) and thyroxine (T4)) that is required for the proper functioning of the body. Without enough amount of thyroid hormone, the body’s metabolism slows down, and a person feels less energetic. Early symptoms of hypothyroidism are fatigue, and weight gain and other symptoms include fatigue, weight gain, sensitive face, depression, constipation, feeling cold, decreased sweating, slowed heart rate, elevated blood cholesterol, dry skin, thinning hair, impaired memory, menstrual changes, muscle weakness, muscle stiffness, and hoarseness of voice. It may be possible that there is a loss of Calcium and Vitamin D in some cases of hypothyroidism.

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Alcohol

Caution

A person should limit the consumption of alcohol along with Rethyro 62.5 mcg Tablet to avoid bothersome side-effects.

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Pregnancy

Safe if prescribed

Rethyro 62.5 mcg Tablet is safe to use for a pregnant woman if suggested by the doctor. The need for Thyroxine may increase during pregnancy due to improved blood levels of estrogen (female sex hormone) hence, monitoring of thyroid function should be done regularly both throughout and after pregnancy. In this case, the thyroid hormone dose can be modified by your doctor.

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Breast Feeding

Caution

Rethyro 62.5 mcg Tablet can only be given to nursing mothers if suggested by the doctor. However, even during high dose thyroxine therapy, the amount of Rethyro 62.5 mcg Tablet passing into the breast milk during lactation is very low and therefore harmless.

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Driving

Safe if prescribed

Rethyro 62.5 mcg Tablet works in a similar manner as natural hormone so it does not interfere with the ability to drive.

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Liver

Safe if prescribed

Rethyro 62.5 mcg Tablet works in the same way natural hormone of the body so it does not have any reported interaction hence, in case you experience any difficulty discuss with your doctor.

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Kidney

Safe if prescribed

Rethyro 62.5 mcg Tablet works in the same way natural hormone of the body so it does not have any reported interaction hence, in case you experience any difficulty discuss with your doctor. However, patients with adrenal gland disorders should consult a doctor before its consumption.

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Children

Safe if prescribed

Rethyro 62.5 mcg Tablet can be given to the children with inborn thyroid hormone deficiency. To achieve normal mental and physical development. The doctor would adjust the dose individually according to the thyroid hormone level and TSH values measured in blood.

Country of origin

India

Manufacturer/Marketer address

Chinubhai Centre, Off. Nehru Bridge, Ashram Road, Ahmedabad - 380009. Gujarat. India.
Other Info - RET0237

FAQs

Rethyro 62.5 mcg Tablet is used to treat underactive thyroid (hypothyroidism).
The use of Rethyro 62.5 mcg Tablet is not suggested in persons who are already dealing with certain medical conditions like thyroid disorder called thyrotoxicosis, untreated or uncontrolled adrenal gland disorder. With it, this medicine can not be used to treat obesity or weight problems. Even before using this medicine, a person should tell their doctor if they have a thyroid nodule, heart disease, a blood clot, or a blood-clotting disorder, diabetes, kidney disease and anemia (lack of red blood cells), osteoporosis, problems with your pituitary gland or any other food or drug allergies.
It is advised to keep taking this Rethyro 62.5 mcg Tablet in pregnancy, and don't stop or start it without asking the doctor. If a pregnant woman has low thyroid hormone levels then it could harm both mother and baby so the doctor will change the dose according to the needs of pregnancy.
Every person requires a different amount of thyroid hormone and it varies according to age, sex, and condition (like pregnancy, chronic condition, or complication). Such as, a 30-year-old woman should have a normal TSH of 4.2 mU/L, while a 90-year-old man has a TSH of 8.9 mU/L at their upper limits. Apart from this, Levels of TSH fluctuate due to stress, diet, and medications, and menses period.
The possible symptoms of hypothyroidism are constipation, puffy face, muscle weakness, sudden weight gain, fatigue, increased sensitivity to cold, dry skin, nervousness, or voice hoarseness. If a person notices any such symptoms then they should consult with an Endocrinologist/Physician for further treatment.
This medicine works best when taken without food on an empty stomach at least half an hour before tea/coffee/breakfast in the morning. Ask your doctor before about the right time of taking Rethyro 62.5 mcg Tablet .
Yes, Rethyro 62.5 mcg Tablet can be advised to children however the dose needs to be adjusted according to the change of weight. If the child loses or gains weight then their doctor will change the dose accordingly.
A Thyroid profile test is suggested by the doctor to check if this medicine is working effectively in the body by checking the levels of T3, T4, and TSH on monthly basis. You will observe a decrease in your TSH level after regular intake of Rethyro 62.5 mcg Tablet as prescribed by your doctor.
Rethyro 62.5 mcg Tablet is not suggested to use for weight loss purposes as it is only indicated for hypothyroidism.
It is advised to never change or stop taking Rethyro 62.5 mcg Tablet as hypothyroidism is usually a lifelong condition. Stopping the medicine on your own can cause an imbalance in the body leading to very serious conditions affecting your metabolism. Consult your doctor for further advice.
If a woman becomes pregnant while taking Rethyro 62.5 mcg Tablet , their doctor may make slight changes in dose after doing a thyroid profile test. The doctor may increase the dose of Rethyro 62.5 mcg Tablet to meet the high-level thyroid hormone requirement in pregnancy. Treatment of underactive thyroid is vital during pregnancy, as low levels of thyroid hormone in the mother may harm both mother and baby.
It is advised to limit salt intake to less than 2300 mg daily as too much salt intake may increase their blood pressure especially in persons who have an underactive thyroid.
Rethyro 62.5 mcg Tablet can raise blood sugar levels. Therefore, inform the doctor if you are diabetic, the doctor may adjust the dose of diabetic medicines.
Taking Rethyro 62.5 mcg Tablet with esomeprazole may interfere with the absorption of Rethyro 62.5 mcg Tablet and lower its effectiveness. Please consult the doctor before taking Rethyro 62.5 mcg Tablet and esomeprazole together.
No, do not take Rethyro 62.5 mcg Tablet after breakfast as food might affect the working of the medicine. Take it at least 30 minutes before having breakfast or a drink containing caffeine, like tea or coffee.
If you suspect you have taken an overdose or notice signs of overdose, please consult a doctor immediately. The symptoms of overdose include fast heart rate, insomnia, mild tremors of hands, nervousness, mild elevation of body temperature, loose stools and blood pressure elevation.
Rethyro 62.5 mcg Tablet should be taken for as long as it has been prescribed by the doctor. The doctor will determine the duration of the treatment based on your condition.
Rethyro 62.5 mcg Tablet should be swallowed as a whole with water; do not crush or chew it. Take it without food on an empty stomach at least half an hour before tea/coffee/breakfast in the morning.
Rethyro 62.5 mcg Tablet can raise blood sugar levels. The dose of your anti-diabetic medicine may need to be adjusted accordingly.
Thyroxine controls metabolism, growth and other body functions. It plays a vital role in growth and development and is essential for maintaining both mental and physical health.
Oestrogen in the combined pill may reduce the amount of levothyroxine in your body. Dose adjustments may be needed in such cases. Therefore, consult the doctor if you are using combined pills, the doctor might adjust the dose or prescribe alternate contraception.
Common side effects of Rethyro 62.5 mcg Tablet are diarrhoea, muscle spasms, weight loss, feeling hot even in cool environments, headache, nervousness, sleeplessness, irritability, menstrual irregularities (in women), and skin rash.
Limit the consumption of alcohol along with Rethyro 62.5 mcg Tablet to avoid bothersome side effects.
Rethyro 62.5 mcg Tablet can be used during pregnancy or breastfeeding if prescribed by the doctor. Please consult the doctor if you are pregnant, planning for pregnancy, think you may be pregnant or breastfeeding.
It might take 6-8 weeks to notice the full effects of Rethyro 62.5 mcg Tablet . Keep taking Rethyro 62.5 mcg Tablet for the prescribed duration to treat your condition effectively.
Rethyro 62.5 mcg Tablet should not be used with other medicines/treatments used for weight loss. If you are due to undergo surgery, inform the doctor. Maintain at least a gap of 4 hours between Rethyro 62.5 mcg Tablet and calcium or iron supplements, cholestyramine, colesevelam, colestipol, sevelamer, or sodium polystyrene sulfonate.

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