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drug database

project

Name/scientific name

CYSTEINE

Self-financed or subsidized by the Hospital Authority

Hospital Authority Drug Formulary

Indications

Cystic fibrosis, acetamide poisoning, mucosal damage after radiation therapy

body system

Nutrition and Hematology

type 

intravenous nutrition

category

Pagination

Drug introduction

Cysteine is an amino acid used as a drug to treat certain diseases. In Hong Kong, cysteine is commonly used to prevent liver damage, especially in patients undergoing chemotherapy or chronic alcohol abuse. It is also used to treat certain kidney diseases and other health problems. Cysteine has antioxidant and detoxifying properties, helping to protect the body from harmful substances. In some cases, doctors may recommend cysteine supplementation to help maintain good health. Before using cysteine, you should consult your doctor for proper medication recommendations, as dosage and usage may vary from person to person. Do not take cysteine by yourself to avoid adverse effects.

Dosage

HOW TO USE: CYSTEINE is an amino acid supplement commonly used to support liver function and detoxification. It is recommended to take it after meals to aid absorption. Avoid taking CYSTEINE with copper-containing supplements as they may affect the effectiveness of CYSTEINE. In addition, patients with kidney disease or other serious diseases should use it under the guidance of a doctor.

Dosage Guidelines: The recommended daily dosage for adults is 500 mg to 1000 mg, which can be adjusted according to individual needs. For children, dosage should be adjusted based on age and weight, and consultation with a pediatrician is recommended to determine appropriate dosage. For patients who have been using CYSTEINE for a long time, the doctor may adjust the dosage according to their condition. Please strictly follow the doctor's recommendations. If you have any adverse reactions or questions, you should consult your doctor immediately.

side effect

CYSTEINE is a drug commonly used to treat liver disease, mainly by helping the liver eliminate toxins and repair damaged cells. However, some side effects may occur when using CYSTEINE, including diarrhea, abdominal pain, dizziness, nausea and vomiting. A small number of people may experience allergic reactions such as itching, redness or difficulty breathing. If serious side effects occur, such as abnormal liver function or rapid heartbeat, stop using CYSTEINE immediately and seek medical help. When using CYSTEINE, it is best to do so under the supervision of a doctor and follow correct medication guidelines.

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Taboo

Thank you for your inquiry. CYSTEINE is a common drug, but it is contraindicated in certain circumstances. Here are some contraindications to note when using CYSTEINE:

1. People who are allergic to CYSTEINE or have a history of allergies should avoid using CYSTEINE. Allergic reactions may include symptoms such as itchy skin, redness and swelling, difficulty breathing, and severe cases may cause anaphylactic shock.

2. Pregnant and lactating women should use CYSTEINE with caution. There are insufficient studies to confirm the safety of CYSTEINE in fetuses or infants, so its use should be avoided in these special circumstances.

3. Patients with liver disease or kidney problems should use CYSTEINE under the guidance of a physician. These patients may be at increased potential risk from the drug due to an impaired body's ability to metabolize the drug.

4. CYSTEINE may interact with certain drugs, so you should consult a physician or pharmacist when using other drugs to ensure safety.

In short, you should read the instructions carefully before using CYSTEINE, follow the advice of your physician or pharmacist, and seek medical assistance immediately if you have any questions or discomfort. I wish you good health!

Precautions

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  • Medication grading for pregnant women

    Cysteine is an amino acid commonly used to protect the liver and strengthen the immune system. For pregnant women, the following should be noted:

    1. Avoid excessive use of cysteine in early pregnancy as it may have adverse effects on the fetus.

    2. During pregnancy, please consult your doctor or pharmacist for advice to ensure safe use of cysteine.

    3. If you have any discomfort or allergic reaction, you should stop using cysteine immediately and seek medical advice.

    4. It is strictly prohibited to adjust the dosage by yourself. You must use it according to the instructions of your doctor or pharmacist.

    In short, cysteine should be used with caution during pregnancy and under the guidance of professional medical staff to ensure the safety of the mother and fetus.

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