Histamines Flashcards
The drug/s that show the least sedation ?
- Loratadine
- Desloratadine
- Fexofenadine
Which of the following are partially sedating ?
- Cetirizine
- Levo Cetirizine
- Acrivastine
Which of the following is used off label as an appetite stimulant
Cyproheptadine
Cyproheptadine is used for?
- Appetite stimulant
2. Anorgasmy
Antihistamines that have mast stabilizing effect
- Azalastine
2. Ketotifen
Ketotifin and azalastine are used for ?
- Treatment of conjunctivitis
- Antihistamines
- Mast cells stabilizing effect
Which of the following are used for the treatment of conjunctivitis?
Ketotifen , azalastine and olopatadine
The most effective agents for prevention of the symptoms of motion sickness?
- Diphenhydramine
- Dimenhydrinate
- Cyclizine
- Meclizine
- Promethazine
Maclizine is used for?
- Treatment of vertigo
- Prevention of the symptoms of motion sickness
NOTE : meclizine half-life is 12-14 h
Which of the following are used in the treatment of insomnia ?
- Diphenhydramine
2. Doxylamine
Loratadine and desloratadine are :
- Second generation antihistamines
- Show least sedation
- Are metabolized by hepatic cytochrome P450
Ketotifen
- Treatment of conjunctivitis
- Antihistamines
- Mast cells stabilizing effect
- Are available in ophthalmic formulations
Azalastine
- Treatment of conjunctivitis
- Antihistamines
- Mast cells stabilizing effect
- Is available in ophthalmic formulations
- Is available in intranasal formulations
Olopatadine
- Have intranasal formulations
- Is available in ophthalmic formulations
- Is used for the treatment of conjunctivitis
H2 antagonists
use is as inhibitors of gastric acid secretion in the treatment of ulcers and heartburn.
