project |
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Name/scientific name |
PHENYLEPHRINE
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Self-financed or subsidized by the Hospital Authority |
Hospital Authority Drug Formulary
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Indications |
Nasal congestion, sinusitis, allergic rhinitis, hypotension
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body system |
cardiology
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type |
Sympathomimetics
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Phenylephrine is a commonly used medication to relieve nasal congestion, eye congestion, and other allergy symptoms. It belongs to a class of drugs called alpha-adrenoceptor agonists, which work by constricting blood vessels to reduce congestion and inflammation in tissues. Phenylephrine is used to treat symptoms such as sinusitis, allergic rhinitis, and nasal congestion caused by colds. In Hong Kong, phenylephrine is usually available as a nasal spray or eye drops, but it should be used according to the advice of your doctor or pharmacist and not to exceed the recommended dose. Some side effects may occur when using phenylephrine, such as palpitations, headache, insomnia, etc. If you have serious adverse reactions, you should seek medical attention immediately. Ask your healthcare professional for more information about phenylephrine.
Directions for use: Read the label instructions before taking this medication. It is usually recommended to take this medicine orally, one tablet at a time, 2 to 3 times daily. Best taken after a meal and not with antacids containing aluminum or magnesium. While taking this medication, you should avoid activities that require a high level of alertness, such as driving a vehicle or operating machinery.
Dosage Guidelines: Adults take 25 to 50 mg each time, maximum daily dose not to exceed 200 mg. For children ages 6 to 12 years, take 12.5 to 25 mg per dose, with a maximum daily dose not to exceed 75 mg. For children 2 to 6 years of age, take 6.25 to 12.5 mg per dose, with a maximum daily dose not to exceed 37.5 mg. Please strictly follow the recommendations of your physician or pharmacist and adjust the dosage for best results.
Phenylephrine is a commonly used drug, mainly used to treat nasal congestion and red and swollen eyes. However, some people may experience side effects when using this drug, including headache, rapid heartbeat, insomnia, anxiety, dizziness, and loss of appetite. Some people may also experience serious side effects such as chest tightness, palpitations, high blood pressure, numbness in hands and feet, or skin allergies. If these symptoms occur, you should stop using the medication immediately and seek medical help. When using Phenylephrine, follow your doctor's advice and pay attention to your physical condition to avoid adverse reactions.
Medication contraindications refer to situations where a patient should not take a specific medication. For medicines containing Phenylephrine, there are the following contraindications:
1. Allergic reactions: Patients who are allergic to Phenylephrine or other similar drugs should avoid using drugs containing Phenylephrine, which may cause severe allergic reactions.
2. Cardiovascular disease: Patients with high blood pressure, heart disease, coronary heart disease or other cardiovascular diseases should avoid using Phenylephrine as it may increase the burden on the heart and aggravate the condition.
3. Thyroid problems: Patients with hyperthyroidism should avoid using Phenylephrine because it may affect thyroid function and aggravate the condition.
4. Pregnancy and lactation: Pregnant or lactating women should use Phenylephrine under the guidance of a doctor to avoid adverse effects on the fetus or infant.
In short, patients should read the instructions carefully before using drugs containing phenylephrine and use them under the guidance of a doctor to ensure safe and effective treatment of symptoms.
PHENYLEPHRINE
Precautions for use: This drug is mainly used to relieve symptoms such as nasal congestion and eye redness. Follow your doctor's or pharmacist's advice and do not exceed the recommended dosage. If you experience any discomfort or side effects, you should stop using it immediately and consult your doctor.
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The drug phenylephrine should be avoided during pregnancy. This medication may have effects on the fetus during pregnancy, especially during the first trimester. If you are planning to become pregnant or are already pregnant, you should inform your doctor promptly so that your medication regimen can be modified.
If you need medication for a cold or other illness during pregnancy, be sure to use safe alternatives under the guidance of your doctor. Please do not self-administer finasrine or other medications that have not been approved by your doctor.
Medications must be used with caution during pregnancy to ensure the safety of mother and baby. If you have any questions or need further information, please ask your doctor or pharmacist. They will be able to provide you with the most suitable solution and ensure the health of you and your baby.
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