The invention relates to pharmaceutical compositions comprising a peptide, such a GLP-1 peptide and a salt of N-(8-(2-hydroxybenzoyl)amino)caprylic acid. The invention further relates to processes for the preparation of such compositions, and their use in medicine.L'invention concerne des compositions pharmaceutiques comprenant un peptide, un tel peptide GLP -1 et un sel d'acide N- (8- (2-hydroxybenzoyl) amino) caprylique. L'invention concerne en outre des procédés pour la préparation de telles compositions, et leur utilisation en médecine.