It may be the leflunomide:
http://www.medscape.com/viewarticle/538209
You can join medscape for free easily. They have a strict copyright so I cannot copy things here from there.
This drug has always been controversial, and FDA at one point was accused for favoritism for approving it in the beginning.
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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