ADB-HEXINACA (also known as ADB-HINACA and ADMB-HEXINACA) is a cannabinoid designer drug that has been found as an ingredient in some synthetic cannabis products, first appearing in early 2021. It is a longer chain homologue of previously encountered synthetic cannabinoid compounds such as ADB-BUTINACA and ADB-PINACA. The pharmacology of ADB-HEXINACA and numerous analogues at CB1 and CB2 receptors has been reported.