does l carnitine cause anxiety Frontiers The neuropsychopharmacology of acetyl-L-carnitine (LAC):

Mechanistic investigations clarify this selective recovery signaling: Selective somatotroph targeting reduces activation of ACTH-secreting corticotroph cells In vitro pituitary assays show preserved GH release with negligible prolactin secretion Comparative endocrine panels confirm minimal cortisol elevation relative to hexarelin or GHRP-6 Moreover, receptor-binding analyses [3] indicate that ipamorelin demonstrates high affinity for GHSR-1a without broad engagement of alternative pituitary receptor systems

This usually resolves as the body adapts

These plateaus are normal and do not necessarily indicate that your dose is inadequate

doi: 10.1016/S0014-5793(97)00561-9