H1 Antihistamines

1. Betahistine

• Maximum daily dose of Betahistine: 48mg/day
• Verist contains the active ingredient: Betahistine
• Be-Stedy contains the active ingredient: Betahistine
• How many strengths does Be-Stedy come in?: Two strengths: 16mg and 24mg

Note: Betahistine is a medication for treating dizziness caused by inner ear disorders, not an H1 antihistamine.

2. Fexofenadine

• The active ingredient in XONATRIX – 120 is: Fexofenadine
• XONATRIX – 120 contains the dosage of: 120mg

3. Levocetirizine

• L-Trizyn and Stadeltine contain the active ingredient: Levocetirizine
• How many strengths does Levocetirizine come in? List them: Levocetirizine comes in 2 strengths: 5mg and 10mg.

4. Ebastin

• Cebastin and Gefbin share the same active ingredient and strength. What are they? Cebastin and Gefbin share the active ingredient Ebastin at 10mg and 20mg strengths.

5. Cyproheptadine

• What is the active ingredient in Peritol and Dynamogen?: Cyproheptadine
• Dosage of Cyproheptadine?: 4mg

6. Hydroxyzine

• What is the active ingredient in Atarax?: Hydroxyzine
• Dosage of Atarax?: 25mg

7. Flunarizine

• What are the dosages of Flunarizine?: Flunarizine comes in two strengths: 5mg and 10mg.
• Sibelium and Reinal share the same dosage of: 5mg
• Sibelium and Reinal contain the active ingredient: Flunarizine
• Which brand name contains Flunarizine 10mg?: Reinal 10

8. Diphenhydramine

• The active ingredient in Nautamin?: Diphenhydramine
• Dosage of Nautamin?: 90mg

9. Cinnarizine

• The active ingredient in Stugeron?: Cinnarizine
• Dosage of Stugeron?: 25mg

10. Lorastad

• How is Lorastad D different from Lorastad?: Lorastad D contains the additional active ingredient Desloratadine, while Lorastad only contains Loratadine.
• Lorastad D is different from Lorastad because of the “D”. What does the “D” stand for?: The “D” stands for Desloratadine.

11. AT.Desloratadin An Thiên

• What are the active ingredient and dosage of AT.Desloratadin An Thiên 30ml – Strawberry flavor?: AT.Desloratadin An Thiên 30ml – Strawberry flavor contains the active ingredient Desloratadine at a dosage of 2.5mg/5ml.

12. Levocetirizine Syrup

• Which medication can be used for children > 6 months?: Levocetirizine syrup 1.25mg/2.5ml can be used for children > 6 months.

13. Desloratadine Syrup

• How to measure 2.5ml of the syrup?: Use a suitable measuring tool to measure 2.5ml of syrup. 2.5ml is equivalent to 1/2 teaspoon.
• Desloratadine syrup 2.5mg/5ml is usually used for children > 1 year old, except for AT. Desloratadin An Thiên 2.5mg/5ml which is used for children …………………………… years old: AT. Desloratadin An Thiên 2.5mg/5ml is used for children > 2 years old.

14. Ketotifen

• What group of drugs does Ketotifen 1mg belong to?: Ketotifen 1mg belongs to the first-generation antihistamine group.

15. Antihistamines for people with Asthma

• Which antihistamine medications can be used for people with Asthma?: Ketotifen 1mg (KETOSAN) and Azelastine 1mg.

16. Acrivastine

• Treatment of chronic idiopathic urticaria: Acrivastine 8mg has a specific indication for the treatment of chronic idiopathic urticaria.

17. Azelastine

• H1 antagonist nasal spray: Azelastine 1mg has a specific indication as an H1 antagonist nasal spray.
• What dosage forms does Azelastine 1mg typically come in?: Azelastine 1mg typically comes in film-coated tablets (ALASETIN 1) and nasal spray (NOZEYTIN 15ml).
• For whom is Azelastine 1mg nasal spray suitable?: Azelastine 1mg nasal spray is suitable for individuals > 5 years old.

18. Phenergan 2%

• What is the dosage of a 10g tube of Phenergan 2% cream?: A 10g tube of Phenergan 2% cream contains 0.2g Promethazine/10g.
• What are the contraindications for Phenergan 2%?: Phenergan 2% is contraindicated for use in children < 2 years old.
• What are the indications for Phenergan 2% cream?: Phenergan 2% cream is indicated for the treatment of:
  • Insect bites
  • Superficial burns (the mildest burns, without blistering)
  • X-ray irritation

19. Maximum daily dose of the medications

• Maximum daily dose of the following medications:
  • Cetirizine 10mg: Maximum is 1 tablet/day
  • Loratadine 10mg: Maximum is 1 tablet/day
  • Levocetirizine 5mg: Maximum is 1 tablet/day
  • Desloratadine 5mg and 10mg: Maximum is 1 tablet/day

20. Contraindications for Phenergan 2%

• What are the contraindications for Phenergan 2%?: Phenergan 2% is contraindicated for use in:
  • Weeping wounds, infections, skin irritation, eczema

Note:

• The information about the medications provided in this article is for reference purposes only.
• Always consult a doctor or pharmacist before using any medication.
• Always read the instructions before using the medication.
• Do not change the dosage or duration of medication without consulting a doctor.
• Store medications properly to ensure quality.
• Keep medications out of reach of children.
• Using H1 antihistamines should be done with caution by drivers and those operating machinery, as the medications may cause drowsiness.
• Avoid using H1 antihistamines during pregnancy and breastfeeding, unless absolutely necessary and prescribed by a doctor.