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project

Name/scientific name

PROMETHAZINE

Self-financed or subsidized by the Hospital Authority

Hospital Authority Drug Formulary

Indications

Allergic rhinitis, allergic reaction, motion sickness, insomnia, vomiting, nausea, rash

body system

respiratory system

type 

Antihistamines and emergency allergies

Drug introduction

PROMETHAZINE is an antihistamine drug used to treat allergic reactions, nausea, and vomiting. It can help reduce symptoms caused by allergies, such as red, itchy skin and sneezing. Additionally, PROMETHAZINE may be used to control nausea and vomiting, such as after surgery or during chemotherapy. This medication is usually available as oral tablets, syrups, and injections. When using PROMETHAZINE, patients should strictly follow the doctor's prescription and avoid exceeding the recommended dose. Please tell your doctor about your allergies, existing medical conditions, and other medications you are taking to avoid adverse reactions. Common side effects that may occur during use include drowsiness, dizziness, and dry mouth. If you have any discomfort or questions, please seek help from your doctor immediately.

Dosage

Instructions for use: Please take this medicine according to the instructions of your doctor. It is usually recommended to take it orally, with or without food. If you have stomach discomfort, you can choose to take it with food to reduce discomfort. Avoid taking with grapefruit or alcohol to avoid increasing the risk of side effects. Avoid activities that require alertness, such as driving a motorcycle, while taking this product.

Dosage Guidelines: The starting dose for adults is 10-25 mg in divided doses per day, which can be adjusted every 4-6 hours as needed. The maximum dose does not exceed 0.5 mg per kilogram of body weight per day. The dosage for children is based on age and weight. Please adjust according to your doctor's advice. Children's doses are usually lower than adult doses, so do not adjust the dose yourself. If you have any questions, please consult your physician.

side effect

PROMETHAZINE is an antihistamine drug commonly used to treat allergic reactions, vomiting and sleep problems. However, its side effects include throat narrowing, difficulty breathing, rapid heartbeat, dizziness, vomiting, allergic skin reactions and dry mouth. Some people may experience serious side effects, such as muscle stiffness, convulsions, coma, and heart problems. If you experience any of the above symptoms, seek medical advice immediately. When using PROMETHAZINE, follow your doctor's instructions and do not adjust the dosage or stop taking the medication on your own. If you have any questions or discomfort, you should consult your doctor.

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Taboo

Drug name: PROMETHAZINE

Taboo groups:
1. It is forbidden for those who are allergic to Promethazine or other antihistamine drugs.
2. Children under 12 years old, especially infants under 2 years old, are not recommended to use Promethazine because it may have a negative impact on their central nervous system.
3. Pregnant women are prohibited from using Promethazine in the third trimester of pregnancy because it may cause adverse effects on the fetus.
4. Patients with severe respiratory diseases (such as asthma) should use Promethazine with caution as it may aggravate breathing difficulties.
5. Patients with glaucoma, prostatic hypertrophy, epilepsy and other diseases should consult a doctor before using Promethazine, as the drug may have negative effects on these diseases.

The above are the contraindications for Promethazine. Please read the instructions carefully or consult a doctor before use to ensure the safety of the medication.

Precautions

PROMETHAZINE

Precautions for use: This drug may cause drowsiness or insomnia, so use caution before driving or operating machinery. It should not be used together with alcohol to avoid increasing the drowsiness effect. If you have any discomfort or concerns, you should seek medical advice immediately.

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  • Medication grading for pregnant women

    When using Promethazine (levodopamine) during pregnancy, you should pay attention to the following matters. Use of this drug during early or late pregnancy may cause adverse effects on the fetus. If you are pregnant or planning to become pregnant, always talk to your doctor first. During pregnancy, this medication should be used only if your doctor feels it is necessary and the benefits outweigh the risks. It should be noted that Promethazine may increase the risk of premature birth during pregnancy. In addition, this drug may also affect the development of the fetal nervous system, so it is best to avoid use during pregnancy. In summary, to protect your health and that of your fetus, promethazine should be avoided during pregnancy. If you have any questions, always check with your doctor.

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