Strepsils is manufactured by Reckitt Benckiser and is one of the Boots Healthcare International brands that Reckitt Benckiser acquired in 2006.[5] The primary active ingredients are dichlorobenzyl alcohol and amylmetacresol,[6] with some formulations containing ascorbic acid (vitamin C).[7] Inactive ingredients include menthol, tartaric acid, and propylene glycol.[6]