The present invention relates to co-crystals of 1, 1-dioxo-3, 3-dibutyl-5-phenyl-7-methylthio-8-(N-{(R)-alpha-[N-((S)-1-carboxylpropyl) carbamoyl]-4-hydroxybenzyl} carbamoylmethoxy)-2, 3, 4, 5-tetrahydro-1, 2, 5-benzothiadiazepine (Ovicobatide) and a
pyridoxine, in particular to co-crystals of 1, 1-dioxo-3, 3-dibutyl-5-phenyl-7-methylthio-8-(N-{(R)-alpha-[N-((S)-1-carboxylpropyl) carbamoyl]-4-hydroxybenzyl} carbamoylmethoxy)-2, 3, 4, 5-tetrahydro-1, 2, 5-benzothiadiazepine (Ovicobatide). The invention also relates to pharmaceutical compositions comprising said co-crystals, and their use in the treatment of various conditions as described herein.