Welcome, Guest. Please Login
MCD - Mast Cell Disorders
  Welcome to our forum.
  HomeHelpSearchLogin  
 
Page Index Toggle Pages: 1
Send Topic Print
difference between H1 and H2 blockers (Read 128 times)
jenwic
Tutor
**
Offline


I Love YaBB 2!
Posts: 43
southern Ohio
difference between H1 and H2 blockers
08/07/11 at 01:48:08
 
Can you tell me what is the difference between H1 and H2 blockers?  Is it only that H1 blockers work throughout the body and H2 blockers work only in the digestive system?
Back to top
 
 
IP Logged
 
Starflower
FORUM ADVISOR
*****
Offline


Not a medical doctor
Posts: 714
Indiana
Re: difference between H1 and H2 blockers
Reply #1 - 08/07/11 at 04:33:15
 
Both kinds of antihistamines work throughout the body.  H1 receptors are concentrated in your respiratory system (but exist in other places)... H2 receptors are concentrated in your GI system (but exist in other places).  Combining them gives you the best chance to get any kind of reaction under control, regardless of what system(s) in your body are reacting.

Heather
Back to top
 

We're all in this thing together
Walkin' the line between faith and fear
This life don't last forever
When you cry I taste the salt in your tears
(Old Crow Medicine Show)
 
IP Logged
 
kimtg68
Guru
*****
Offline



Posts: 545
Alabama
Re: difference between H1 and H2 blockers
Reply #2 - 08/07/11 at 04:44:35
 
I did not know this. Good question and great info!
Back to top
 
 
IP Logged
 
jenwic
Tutor
**
Offline


I Love YaBB 2!
Posts: 43
southern Ohio
Re: difference between H1 and H2 blockers
Reply #3 - 08/07/11 at 13:31:11
 
Thanks, Heather!  I could see a big difference in my symptoms when I started Claritin, but since I just started Zantac (75 mg a day) I can't tell that the Zantac has changed my symptoms any.  Maybe it's just because I need a bigger dose.  

I'll be started a night time Zantac dose next.  Should I take it before supper or at bedtime?
Back to top
 
 
IP Logged
 
Riverwn
FORUM MODERATOR/ADVISOR
*******
Offline



Posts: 991
Gainesville, Florida
Re: difference between H1 and H2 blockers
Reply #4 - 08/07/11 at 18:25:04
 
With Zantac I would try to space the doses about 12 hours apart, unless you are taking a mid day dose too. Most of us take 300 mg twice a day and I will take an extra if I am actively reacting.
Back to top
 

~~~Count  Your Blessings!~~~
 
IP Logged
 
Starflower
FORUM ADVISOR
*****
Offline


Not a medical doctor
Posts: 714
Indiana
Re: difference between H1 and H2 blockers
Reply #5 - 08/08/11 at 02:08:42
 
Ditto what Ramona said.

Heather
Back to top
 

We're all in this thing together
Walkin' the line between faith and fear
This life don't last forever
When you cry I taste the salt in your tears
(Old Crow Medicine Show)
 
IP Logged
 
Page Index Toggle Pages: 1
Send Topic Print