bpc 157 human clinical trials randomized controlled The Stable Gastric Pentadecapeptide Pleiotropic Beneficial Activity and Its Possible Relations with Neurotransmitter Activity BPC-157 and Healing Peptides: Hype
Description
Severe reactions to J&J is supposed to be very small (roughly 2-3%)

10.3390/vaccines9010060 Vaccines 81 HeJ.YuL.LinX.LiuX.ZhangY.YangF.et al

GIP receptor activation does not produce the nausea and gastrointestinal distress that limits GLP-1 receptor dose escalation

If you are arranging US delivery from Canada, plan ahead so your injection schedule, storage needs, and refill timing stay aligned
Small subcutaneous nodules after BPC-157 injection are a common and benign response