Some homeopathic remedies might be contaminated by actual remedies — might contain actual drugs — warns The US Food and Drug Administration in March 20, 2014 alert headlined “Pleo Homeopathic Drug Products by Terra-Medica: Recall – Potential for Undeclared Penicillin“. (Arielle Duhaime-Ross supplies commentary about this, in The Verge).
BONUS: All wet: Benveniste explains it to you