The most common gastrointestinal adverse events were nausea ( @ -LSB- @ % -RSB- in dulaglutide group vs @ -LSB- @ % -RSB- in liraglutide group ) , diarrhoea ( @ -LSB- @ % -RSB- vs @ -LSB- @ % -RSB- ) , dyspepsia ( @ -LSB- @ % -RSB- vs @ -LSB- @ % -RSB- ) , and vomiting ( @ -LSB- @ % -RSB- vs @ -LSB- @ % -RSB- ) , with similar rates of study or study drug discontinuation because of adverse events between the two groups ( @ -LSB- @ % -RSB- in each group ) .