Likewise, an essential problem with regard to the active (and effective) peptide is the continuous search for new delivery systems and new carriers, and new carriers and delivery systems together, with all standard angiogenic growth factors to improve their efficacy, although they are very extensive and highly sophisticated (for review, see Saghazadeh et al., 2018
Possible side effects include: Nausea, diarrhea, vomiting, constipation, mild to moderate abdominal pain, headache, fatigue, dyspepsia, dizziness, abdominal distension, belching, hypoglycemia, flatulence, gastroenteritis, loss of lean muscle mass and gastroesophageal reflux disease
In preclinical models, it increases insulin release and decreases glucagon, which is the activation of GLP-1 receptors
PMID 17230599
First, you have blueprints and small-scale models (lab and animal studies)