Transient gastrointestinal adverse events characteristic of GLP-@ receptor agonists were more frequent with exenatide than glargine ( nausea : @ -LSB- @ % -RSB- of @ patients vs five -LSB- @ % -RSB- of @ ; vomiting : @ -LSB- @ % -RSB- vs six -LSB- @ % -RSB- ; diarrhoea : @ -LSB- @ % -RSB- vs @ -LSB- @ % -RSB- ) , although frequency of these events did decrease after week @ in the exenatide group .