Glucagon-like peptide-1 (GLP-1) receptor agonists are a relatively new therapeutic option for the treatment of type 2 diabetes mellitus (T2DM). These agents are generally well tolerated and provide glycemic control and other clinical benefits. 1,2 Aside from their efficacy in reducing glycated hemoglobin via effects on both fasting plasma glucose and postprandial plasma glucose, GLP-1 receptor agonists allow patients to achieve glycemic targets, with beneficial effects on weight being reported. 1,3-6 One of the key benefits of GLP-1 receptor agonists is that they stimulate insulin secretion and inhibit glucagon secretion in a glucose-dependent manner, and therefore carry a limited risk of hypoglycemia. 3,7 The GLP-1 receptor agonists currently available are exenatide (Byetta ® , Bristol-Myers Squibb/AstraZeneca), administered as a twice-daily injection; 8 liraglutide (Victoza ® , Novo Nordisk), administered as a once-daily injection; 9 exenatide (Bydureon ® , Bristol-Myers Squibb/AstraZeneca), administered as a once-weekly injection; and lixisenatide (Lyxumia ® , Sanofi-Aventis), a once-daily prandial GLP-1 receptor agonist. 10 Twice-daily exenatide as well as oncedaily liraglutide and once-daily lixisenatide are available as ready-to-use prefilled pen devices for subcutaneous injection. Exenatide is available in 2 different fixed-dose 511733D STXXX10.