The product safety warning involves the OxyELITE Pro capsules. OxyELITE Pro capsules are promoted as having “super thermogenic” (weight loss) properties. OxyELITE Pro capsules were found to contain undeclared yohimbine. Yohimbine is a prescription drug used to treat abnormal blood pressure.
You may also find additional details about the product safety warning in the CPSR bulletin at: http://hc-sc.gc.ca/ahc-asc/media/advisories-avis/_fpa-ape_2011/2011-139-eng.php