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Reply To: Concerned about giving milk thistle after Heartgard

March 30, 2014 at 4:27 pm #37247 Report Abuse
theBCnut
Member

According to this http://parasitipedia.net/index.php?option=com_content&view=article&id=2454&Itemid=2722
the half life is 1 -3 days, so I would wait about 9 days before using milk thistle.