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        <title>Tizanidine</title>
        <description> 41 man

  4mg of Tizanidine tanks my 
Blood pressure and pulse

 I take half of 2mg now (1mg)

  Anyone take it for muscle or pain

   Is it dangerous? I have Inappropriate sinus tachycardia 
My echocardiogram is normal 
Ejection fraction and LV function normal 

 Thoughts opinions?</description>
        <link>https://www.afibbers.org/forum/read.php?9,199114,199114#msg-199114</link>
        <lastBuildDate>Sat, 24 Oct 2026 08:53:56 +0000</lastBuildDate>
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        <item>
            <guid>https://www.afibbers.org/forum/read.php?9,199114,199192#msg-199192</guid>
            <title>Re: Tizanidine</title>
            <link>https://www.afibbers.org/forum/read.php?9,199114,199192#msg-199192</link>
            <description><![CDATA[ I took Tizandine (Zanaflex) about 12 years ago. I saved the bottle, and wrote on the bottle that this drug slowed my HR way down, and also caused an erratic Heartbeat.  I remember it was a bad experience, although I took it at 6mg over 4 hours.  I am reading that the type of IR Heartbeat caused can be QT prolongation, which can be very serious.  <br />
<br />
The dosage of a drug that impacts the heart is important, so it it sounds wise to cut the dose down low enough that repeated EKG&#039;s are normal, and you don&#039;t have noticeable side effects relating to HR and BP.]]></description>
            <dc:creator>The Anti-Fib</dc:creator>
            <category>AFIBBERS FORUM</category>
            <pubDate>Fri, 07 Mar 2025 21:31:50 +0000</pubDate>
        </item>
        <item>
            <guid>https://www.afibbers.org/forum/read.php?9,199114,199116#msg-199116</guid>
            <title>Re: Tizanidine</title>
            <link>https://www.afibbers.org/forum/read.php?9,199114,199116#msg-199116</link>
            <description><![CDATA[ Slow heartbeat is a known side effect:<br />
<br />
[<a href="https://medlineplus.gov/druginfo/meds/a601121.html#side-effects"  rel="nofollow">medlineplus.gov</a>]<br />
<br />
It&#039;s also a &quot;call your doctor&quot; event.  Have you discussed your unpleasant side effects with the prescribing physician?<br />
<br />
ETA: it can also cause low blood pressure:<br />
<br />
[<a href="https://www.healthline.com/health/tizanidine-oral-tablet#important-warnings"  rel="nofollow">www.healthline.com</a>]<br />
<br />
I&#039;d definitely contact my doctor.]]></description>
            <dc:creator>NBeener</dc:creator>
            <category>AFIBBERS FORUM</category>
            <pubDate>Thu, 27 Feb 2025 14:31:26 +0000</pubDate>
        </item>
        <item>
            <guid>https://www.afibbers.org/forum/read.php?9,199114,199114#msg-199114</guid>
            <title>Tizanidine</title>
            <link>https://www.afibbers.org/forum/read.php?9,199114,199114#msg-199114</link>
            <description><![CDATA[ 41 man<br />
<br />
  4mg of Tizanidine tanks my <br />
Blood pressure and pulse<br />
<br />
 I take half of 2mg now (1mg)<br />
<br />
  Anyone take it for muscle or pain<br />
<br />
   Is it dangerous? I have Inappropriate sinus tachycardia <br />
My echocardiogram is normal <br />
Ejection fraction and LV function normal <br />
<br />
 Thoughts opinions?]]></description>
            <dc:creator>AL1983</dc:creator>
            <category>AFIBBERS FORUM</category>
            <pubDate>Thu, 27 Feb 2025 08:48:30 +0000</pubDate>
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