Thyrox37.5

THYROX37.5 by MACLEODS PHARMACEUTICALS PVT LTD

Thyrox 37.5 is a synthetic thyroid hormone replacement therapy, manufactured by Macleods Pharmaceuticals Pvt Ltd, used to treat conditions arising from insufficient thyroid hormone production in the body.

• Name:

  • Brand Name: THYROX37.5
  • Common Name: Levothyroxine Sodium (Thyroxine Sodium)

• Composition:

  • Active Ingredient: Levothyroxine Sodium 37.5 mcg

• Uses: Thyrox 37.5 is primarily prescribed for the management of:

  • Hypothyroidism: An underactive thyroid gland that does not produce enough thyroid hormones to meet the body's needs. It helps restore normal hormone levels, alleviating symptoms like fatigue, weight gain, and sensitivity to cold.
  • Goitre Management: Used in the treatment of goitre, an abnormal enlargement of the thyroid gland, by stabilizing hormone levels.
  • Thyroid Hormone Deficiency During Pregnancy: May be prescribed to pregnant women with thyroid hormone deficiencies to ensure proper fetal development and prevent complications.
  • Thyroid Cancer: Also used as adjunctive therapy in the management of thyrotropin-dependent well-differentiated thyroid cancer.

• Dosage and Administration:

  • Thyrox 37.5 is typically taken once daily on an empty stomach, usually 30 minutes to 1 hour before breakfast, with a full glass of water.
  • The dosage is individualized by a doctor based on the patient's age, weight, medical condition, and laboratory test results.
  • Tablets should be swallowed whole and not crushed, broken, or chewed.

• Side Effects:

  • Common Side Effects: Headache, diarrhea, nausea, vomiting, sweating, muscle cramps, shaking (tremor), feeling restless or excitable, trouble sleeping, weight loss or gain, increased appetite, heat intolerance, irritability, nervousness, temporary hair loss, mood changes, and changes in menstrual cycles.
  • Serious Side Effects: Report immediately to a doctor if experiencing allergic reactions (skin rash, itching, hives, swelling of the face, lips, tongue, or throat, difficulty breathing, wheezing), fast/pounding/irregular heartbeat (palpitations), chest pain, shortness of breath, severe diarrhea, bone pain or easily broken bones, seizures, confusion, or loss of consciousness.

• Precautions:

  • Contraindications: Should not be used in individuals with unmanaged hyperthyroidism, unmanaged subclinical or overt thyrotoxicosis, unmanaged adrenal insufficiency, or pituitary insufficiency. It is also generally unsuitable for those with acute heart attack, acute myocarditis, pancarditis, or irregular heartbeat (arrhythmia).
  • Important Warnings:
    • Not intended for weight loss or to treat obesity, and higher-than-recommended doses can lead to serious, potentially fatal side effects.
    • Patients with diabetes should inform their doctor, as levothyroxine may affect blood sugar levels, requiring adjustment of anti-diabetic medications.
    • Inform your doctor about all medications, vitamins, herbal products, and dietary supplements being taken, as certain drugs (e.g., oestrogen, oral contraceptives, warfarin, insulin, anti-diabetics, iron, calcium, antacids, sertraline, rifampicin, phenytoin, barbiturates, protease inhibitors, imatinib, sunitinib) can interact with Thyrox 37.5.
    • Avoid taking calcium, iron, magnesium supplements, antacids, soy products, or grapefruit juice within 2 to 4 hours of taking Thyrox 37.5, as they can interfere with its absorption.
    • Conditions such as adrenal gland disorders, heart disease, high blood pressure, diabetes, and osteoporosis require caution and close medical supervision.
    • Biotin (vitamin B7) supplements may interfere with thyroid function tests; inform your doctor and stop taking biotin at least 2 days before blood work.
    • Do not switch brands of levothyroxine without consulting your healthcare provider, as different formulations may have varying effects.
    • Pregnant or breastfeeding women should consult their doctor, as dosage adjustments may be necessary during these periods.

• Storage:

  • Store in a closed container at room temperature, ideally between 20°C and 25°C (68°F and 77°F), with excursions permitted between 15°C and 30°C (59°F and 86°F).
  • Keep the medicine away from heat, moisture, and direct light.
  • Do not store in a bathroom or near a sink due to humidity and heat.
  • Keep out of the sight and reach of children.

THYROX37.5 is a medication that contains Levothyroxine Sodium, a synthetic thyroid hormone. It is primarily used to treat conditions related to an underactive thyroid gland.

What is THYROX37.5 used for?

THYROX37.5 is primarily used to treat hypothyroidism, a condition where the thyroid gland does not produce enough thyroid hormones. It is also used in thyroid hormone replacement therapy, to manage an enlarged thyroid gland (goiter), and as an adjunct to surgery and radioiodine therapy for certain types of thyroid cancer.

How does THYROX37.5 work?

THYROX37.5 contains Thyroxine Sodium, which is a synthetic version of the natural thyroid hormone, thyroxine (T4). It works by replacing this missing hormone in the body, thereby regulating metabolism, energy levels, growth, digestion, brain development, and heart and muscle function.

What is the usual dosage of THYROX37.5?

The dosage of THYROX37.5 is highly individualized, depending on your body weight, symptoms, and blood test results. Adults typically start with a dose between 50 micrograms and 100 micrograms once a day, which may be gradually increased. For adults, the dose is often around 1.6 micrograms per kilogram of body weight per day, though it may be lower for older adults or those with heart conditions. THYROX37.5 specifically contains 37.5 micrograms of thyroxine sodium per tablet. Regular blood tests are essential to ensure the correct dosage.

What are the possible side effects of THYROX37.5?

Most side effects associated with levothyroxine therapy occur if the dose is too high and are similar to symptoms of an overactive thyroid. Common side effects can include headache, nausea, vomiting, changes in weight (often weight loss), increased appetite, heat intolerance, excessive sweating, rapid or irregular heartbeat, irritability, nervousness, anxiety, mood changes, trouble sleeping, tremors, muscle weakness, changes in menstrual periods, and temporary hair loss. More serious but rare side effects can include bone loss and fractures with long-term high doses.

Is THYROX37.5 safe during pregnancy or breastfeeding?

Yes, THYROX37.5 (levothyroxine) is generally considered safe and crucial to continue taking during pregnancy. Your doctor may need to increase your dose during pregnancy, and regular blood tests will be conducted to monitor hormone levels. During breastfeeding, levothyroxine passes into breast milk in very tiny, usually undetectable amounts and is considered compatible with breastfeeding. Maintaining proper thyroid hormone levels is important for both the mother's health and adequate milk production.

Can THYROX37.5 be taken with other medications?

Many medications and certain foods can interact with levothyroxine, affecting its absorption or effectiveness. It's crucial to inform your doctor about all prescription, over-the-counter medications, vitamins, nutritional supplements, and herbal products you are taking. For optimal absorption, it is often recommended to take levothyroxine at least 4 hours apart from certain medications and supplements, including antacids (containing aluminum or magnesium), iron supplements, calcium supplements, bile acid sequestrants (like cholestyramine, colestipol, colesevelam), and proton pump inhibitors. Foods like soy products, coffee, milk, walnuts, and dietary fiber can also reduce absorption, so it's advisable to take levothyroxine at least 30 minutes to an hour before food or caffeinated drinks, and at least 4 hours before calcium-rich foods. Other potential interactions exist with oral contraceptives, anticoagulants (e.g., warfarin), insulin or oral hypoglycemics, certain anti-seizure drugs (e.g., carbamazepine, phenobarbital), and some heart medications.

What precautions should be taken with THYROX37.5?

THYROX37.5 should not be used for weight loss or to treat obesity. Inform your doctor if you have any pre-existing health conditions such as heart problems (including angina, heart disease, or heart failure), high blood pressure, diabetes, adrenal gland problems, or pituitary gland problems, as these may require special monitoring or dosage adjustments. Regular blood tests are essential to monitor your thyroid hormone levels to ensure you are on the correct dose and prevent side effects.

What happens if a dose of THYROX37.5 is missed?

If you miss a dose of THYROX37.5, take it as soon as you remember. However, if it is almost time for your next scheduled dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. Due to levothyroxine's long half-life, missing a single dose usually does not pose an immediate danger, but consistent daily intake is important for effective treatment.

How should THYROX37.5 be stored?

Store THYROX37.5 at room temperature, ideally between 15°C and 30°C (59°F and 86°F). Keep the medication in its original closed container, away from heat, moisture, and direct light. It is important to keep it out of the reach of children.