30 Aug 2010
The Zanaflex contains Tizanidine and is used as antispastic in MS and spinal injury. The half life of Tizanidine is 2.5 hours but its metabolites have half life of 20-40 hours. So the single dose will take 80-90 hours to get out of system and in hair follicle test it will take 90 days.
- Tizanidine Information for Consumers
- Tizanidine Information for Healthcare Professionals (includes dosage details)
- Side Effects of Tizanidine (detailed)
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I can't believe that one pill that you have never taken before can stay in your system up to 7 days. I've never heard of anything like ...
3 answers • 23 Dec 2009
my friend is in a lot of pain and was prescribed them but is fighting a battle for her kids need to know how long it will stay in her system
3 answers • 25 Jul 2010
My son had an addiction and was sent to a detention center for 5 days. He had not done them for 6 days but when he got out, he tested positive for ...
5 answers • 2 Aug 2011
My system is very sensitive, so I was wondering if I might take half of a 4mg tablet.
1 answer • 25 Oct 2012
1 answer • 23 Apr 2013