EGF and gastric ulcer: Kangfuxin is an ethanol extract of Periplaneta americana (EEPA) prescribed for repairing gastric ulcers and skin wounds in China.[14] We further show that the peptide promotes gastric organoid growth and mucosa restitution via stabilizing the EGF‐EGFR complex and activating EGFR downstream ERK and Stat1, but not Akt1 or Stat3, in a slow but long‐lasting manner, compared to EGF.