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loratadine (Claritin) and warfarin
Started by Sarah
Posted: June 6, 2008 at 22:31
Does anyone take claritin for allergies and if so did it affect your INR levels if taking warfarin concurrently?
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Re: loratadine (Claritin) and warfarin
Reply #1 by Char
Posted: June 6, 2008 at 22:41
Drug interaction checker says no interaction between Claritin or Zyrtec and Warfarin. I use Zyrtec, my former Coumadin Clinic told me there is interaction. They gave me lots of mis-information.
http://www.medscape.com/druginfo/druginterchecker?src=google
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Re: loratadine (Claritin) and warfarin
Reply #2 by John
Posted: June 19, 2008 at 03:16
Dear Char,

Did the Claritin change the INR? Did the INR increase or decrease?
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Re: loratadine (Claritin) and warfarin
Reply #3 by sarah
Posted: June 19, 2008 at 05:30
Hey John,
I started loratadine (generic claritin)two weeks ago. My GP insisted it would not interfere with my warfarin and I countered his insistance with my own demand to get my INR tested a week later just to make sure. so far so good, no change in INR and my allergies are a little less severe.
Sarah
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Re: loratadine (Claritin) and warfarin
Reply #4 by Lore
Posted: June 19, 2008 at 09:36
I have allergies throughout the month of May (tree pollen). I took Claritin all month and was fine.


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Re: loratadine (Claritin) and warfarin
Reply #5 by Char
Posted: June 19, 2008 at 11:04
There was no increase or decrease in my INR when I take Zyrtec. You can check out any of your OTC meds at the drug checker, second post from the top.
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Re: loratadine (Claritin) and warfarin
Reply #6 by kv
Posted: June 25, 2010 at 19:09
I take warfarin 2 mg for dvt. My medic recently prescribed Mobic as a 'safe' painkiller in combination with warfarin. Has anyone out there used this combination? And how did it work?
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Re: loratadine (Claritin) and warfarin
Reply #7 by shirlee
Posted: September 28, 2010 at 18:54
i take zyrtec and i test my own blood it is ok to use and tums is heart burn
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Re: loratadine (Claritin) and warfarin
Reply #8 by Brainy
Posted: April 20, 2011 at 04:06
I take Jantoven and i was taking benadryl,and i wandered if taking Clariten with Jantoven would affect my levels or not.Thanks.
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Re: loratadine (Claritin) and warfarin
Reply #9 by smiley
Posted: May 30, 2012 at 11:13
I was just wondering my partner is currently on warfarin (coumadin) for a blood clot in his leg and he has the start of a cold could someone tell us which cough medicine would be best for him as we dont want to affect his inr levels. Thanks.
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Re: loratadine (Claritin) and warfarin
Reply #10 by trisha
Posted: July 25, 2013 at 15:52
I moved to Ohio, my allergies are bad, I'm on Coumadin I was told that I could take Claritin during the day, Benadryl @ night & that it doesn't counter act with Coumadin, how true is that????
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Re: loratadine (Claritin) and warfarin
Reply #11 by trisha
Posted: July 25, 2013 at 17:24
I moved to Ohio, my allergies are bad, I'm on Coumadin I was told that I could take Claritin during the day, Benadryl @ night & that it doesn't counter act with Coumadin, how true is that????
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Re: loratadine (Claritin) and warfarin
Reply #12 by Patricia
Posted: July 25, 2013 at 18:35
Regular Claritin is fine. I'm not sure about Claritin D or Benadryl.
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Re: loratadine (Claritin) and warfarin
Reply #13 by Collette
Posted: July 24, 2014 at 18:20
I just wanted to know if can take the medications together without having a
problem with my INR going down or going up to high! I have be between 2.5 and
3.5!
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