I found a yellow capsule in my teenage sons room. It has a brownish colored powder with the writing on 1/2 of the capsule is st-2 and on the other half is 224 over a line, and 3850 under the line.
4 May 2005
This pill is one of the Stacker 2 products
Take a look at
This pill is possibly one of the older formulations containing Ephedra.
On April 12, 2004, a final rule went into effect prohibiting the sale of dietary supplements containing ephedrine alkaloids (ephedra). More info at
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what is this pill is purple and gray and also has the markings st-3ef and 224 over 3850. thanks
2 answers • 6 Jun 2009
st-2 224 3850. purple and yellow capsule
1 answer • 1 Nov 2012
Its a capsule, half purple,half yellow
1 answer • 5 Dec 2012
1 answer • 16 Feb 2013
Capsule - ST-2 portion is purple, 224 is placed above 3850 (like a division problem) and that portion is yellow.
1 answer • 20 Feb 2014