Individual variation in gut microbiome composition, diet, and metabolic response to the medication all play a role
Wegovy, the weight loss formulation, can cost $1,000 to $1,600 per month without insurance

In preclinical studies, systemic administration of GLP-1 receptor agonists has been shown to reduce cocaine-induced CPP ( In vivo microdialysis studies have shown that GLP-1 receptor activation reduces dopamine release in reward-related regions such as NAc, indicating a suppression of dopaminergic reinforcement mechanisms ( The doses used in some of these studies also produced non-specific behavioral effects, such as reduced locomotor activity or induced malaise ( Regarding the lack of liraglutide effect in the extended-access study, this model precipitates neuroplastic changes in dopamine and glutamate signaling within reward circuits, which may reduce the sensitivity to GLP-1 receptor agonist intervention ( Another key issue in this line of research is the pharmacokinetic properties of LIR in rats, including absolute bioavailability and brain penetration, as well as typical side effects of the GLP-1 receptor agonist class, such as nausea

Conversely, activating GLP-1-expressing NTS neurons reduces high-fat diet intake by inhibiting dopaminergic VTA neurons through both reduced glutamatergic and enhanced GABAergic input [97]