In many cases, some level of queasiness is a part of how these drugs work
"The beneficial effect of BPC 157, a 15 amino acid peptide BPC fragment, on gastric and duodenal lesions induced by restraint stress, cysteamine, and 96% ethanol in rats." Journal of Physiology Paris
Adverse reactions related to volume depletion (including reports of dehydration, hypovolemia, orthostatic hypotension, or hypotension) for the 12-trial and 13-trial, short-term, placebo-controlled pools and for the DECLARE trial are shown in Table 4 [see Warnings and Precautions (5.3)]
severe impairment, n = 5) and the hepatic impairment study included 32 participants (normal function, n = 14
Theoretical immunogenicity flagged by FDA in the Category 2 listing
M.Alzheimer's Disease Neuroimaging Initiative (2020)