Flashcards in T3-Allergy Medications: Antihistamines-MJ Deck (22):
What are 5 histamine effects?
Runny nose, sneezing
Watery, itchy eyes
Vasodilation (decreased BP)
What are the two main groups of allergy meds?
First and second generation
Are first generation lipid soluble?
What are 2 characteristics of first generations?
Greater anticholinergic effect
Easily penetrate the BBB
What are three common first generations?
Which of the first generation can be given IV?
Works fast, 100% absorption if given IV; given for anaphalytic shock
What firs generation is NOT SAFE for children under the age of 2? Why?
Promethazine; can cause very high respiratory depression
Good for motion sickness, NV though..just not in kids under age 2
What are the 4 common second generations?
Do second generations cross BBB well?
Second generations have very little ____ effects and have a much longer ____
much longer half-life
With second generations, do they have high or low side-effects?
Do they have anti-cholinergic effects?
Don't have anti-cholinergic effects
Of the second generations, which drug has some sedation?
Of the second generations, which two drugs are basically the same? What is the difference?
Loratidine and desoratidine
Desoratidine is a prescription drug and therefore more expensive. They both produce the same effect
How often do we have to give a first generation?
How often do we give a second generation?
First or second generation: certirizine
*has some sedative effects unlike other second generations
First or second generation: promethazine
*good for N/V, motion sickness; not good for kids under 2 though (respiration depression)!!!!
First or second generation: diphenhydramine
First or second generation: fexofenadine
First or second generation: loratidine
First or second generation: hydroxyzine
*good for sleep and itching relief