Quick Answer: No single GLP-1 receptor agonist is definitively easiest on the stomach, but dulaglutide and liraglutide may cause slightly fewer gastrointestinal side effects than higher-dose semaglutide or tirzepatide, though individual tolerance varies considerably
However, some women experience an increased heart rate on these medications
The Side Effect in Question: NAION What is NAION
Ipamorelin produced a selective and dose-dependent increase in GH levels with no significant stimulation of ACTH or cortisol, suggesting hypothalamic specificity. Kraemer et al., Journal of Clinical Endocrinology & Metabolism 2
Receptor activation triggers adenylyl cyclase signaling, elevating intracellular cAMP, which activates protein kinase A (PKA) and subsequently the MITF (melanocyte-inducing transcription factor) pathway
Grip strength often decreases, making it difficult to hold objects firmly