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info@careeasy.hk

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project

Name/scientific name

THYROXINE

Self-financed or subsidized by the Hospital Authority

Hospital Authority Drug Formulary

Indications

Hypothyroidism, Cretin's disease, simple goiter

body system

Endocrine System

type 

Thyroid and antithyroid drugs

Drug introduction

Thyroxine is a medicine that treats thyroid problems. It is a synthetic thyroid hormone used to treat hypothyroidism or other thyroid conditions. Thyroxine helps regulate the body's metabolism, affecting things like weight, heart rate, and energy levels. In Hong Kong, thyroxine is commonly used to treat hypothyroidism and is also used to treat other thyroid-related conditions. When using thyroxine, you should take it accurately according to your doctor's instructions and undergo regular examinations to ensure efficacy. While taking thyroxine, some side effects may occur, such as fast heartbeat, insomnia, or headache. If adverse reactions occur, you should inform your doctor immediately. Do not adjust the dose or stop using thyroxine on your own, as this may affect the therapeutic effect.

Dosage

Directions for use: Please take the medication on an empty stomach in the morning, at least 30 minutes before meals. Avoid taking it with calcium supplements, iron products or high-fiber foods, which may affect the absorption of the drug. Do not take with milk, tea or coffee.

Dosing Guidelines: Adults usually start with a starting dose of 25 to 50 mcg per day, and your doctor may adjust the dose to achieve proper thyroid function. For children, the starting dose is usually 1 to 2 micrograms per kilogram of body weight, again under the guidance and supervision of a physician. During treatment, the doctor may regularly check thyroid function and adjust the dosage to ensure efficacy. Please use the medicine strictly according to your doctor's recommendations and do not adjust the dosage or stop using it on your own.

side effect

Taking Thyroxine may cause side effects, including headaches, heart palpitations, insomnia, weight changes, anxiety, and hand tremors. Some people may experience gastrointestinal discomfort, such as diarrhea or constipation. Long-term use of thyroxine may cause hyperthyroidism, with symptoms such as fatigue, muscle weakness, and irregular heartbeats. If you experience serious side effects, such as difficulty breathing, excessive agitation, or chest pain, seek medical attention immediately. While taking thyroxine, you should receive regular follow-up examinations from your doctor to ensure that your physical condition is stable.

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Taboo

Please note the following contraindications regarding the use of Thyroxine:

1. **Anaphylaxis**: This medication should not be used by people who are allergic to thyroxine or any of its components. Be sure to tell your doctor if you have ever had an allergic reaction to a similar drug.

2. **Heart Problems**: People with heart disease, arrhythmia, heart failure, or other heart-related problems should consult their doctor before using thyroxine. Medications may have an impact on heart function and must be used with caution.

3. **Hyperthyroidism**: For patients with hyperthyroidism, thyroxine may aggravate the condition. In this situation, the risks should be carefully assessed before using thyroxine.

4. **Pregnant and lactating women**: Pregnant or lactating women should use thyroxine under the guidance of a doctor. Medications may have effects on the fetus or baby and must be used with caution.

5. **Other Drug Interactions**: Before using thyroxine, tell your doctor about all the drugs you are taking, including prescription drugs, over-the-counter drugs, and supplements. Certain medications may interact with thyroxine, affecting its effectiveness or causing adverse reactions.

The above are contraindications for the use of thyroxine. Please read the drug instructions carefully before use and follow your doctor's advice. If you have any questions or discomfort, seek help from your doctor immediately.

Precautions

Thyroxine is a drug used to treat hypothyroidism. Please use it according to your doctor's advice and do not adjust the dosage yourself. Regularly review thyroid function to ensure efficacy. If you experience any discomfort, tell your doctor immediately.

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  • Medication grading for pregnant women

    Pregnant women should use thyroxine with caution before and during pregnancy. In early pregnancy, make sure you have had a thyroid function test before becoming pregnant and adjust your medication dosage according to your doctor's recommendations. During pregnancy, have regular checkups to monitor thyroid function, and keep your doctor informed of any symptoms. Avoid stopping medication on your own and continue taking it as directed by your doctor. If you notice any uncomfortable symptoms after pregnancy, you should seek advice from your doctor immediately. With correct medication guidance, the effects of thyroxine on pregnant women and fetuses will be minimized.

    Medications during pregnancy should be used with caution, so good communication with your doctor should be maintained and health status should be monitored throughout. If you have other diseases or are taking other drugs, you should inform your doctor so that the drug formula can be adjusted appropriately. The most important thing is to follow your doctor's advice during pregnancy to ensure the safety and health of mother and baby.

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