According to Tony O'Lenick, dimethicones are a series of silicone polymers that contain only M and D units, whereas simethicone is a mixture of polydimethylsiloxane and silica gel.
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4 The information about dimethicone and simethicone which is contained
Improvement of symptoms in infant colic following reduction of lactose load with lactase - Kanabar - 2001 - Journal of Human Nutrition and Dietetics - Wiley Online Library
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