Glucagon is a known positive chronotrope it directly increases heart rate by activating glucagon receptors in cardiac tissue, triggering a cAMP cascade that speeds up the heart's rhythm
However, it is not yet FDA-approved or available by prescription
While its exact GLP-1 modulating effects are still under investigation, it has long been recognized for its blood sugar-lowering properties, believed to involve enhanced glucose uptake, improved insulin signaling, and possibly indirect effects on incretin hormones
Commercial insurance still varies: coverage is common for type 2 diabetes, less consistent for weight loss alone
For a deeper safety-focused BMM discussion, see the article on retatrutide side effects
It should be clear and colorless to slightly yellow