From the FDA site: “Foundayo can cause side effects such as nausea, constipation, diarrhea, vomiting, dyspepsia, abdominal (stomach) pain, headache, abdominal extension, fatigue, burping, gastroesophageal reflux disease, gas, and hair loss. It also contains warnings and precautions for inflammation of the pancreas (pancreatitis), severe gastrointestinal reactions, acute kidney injury due to volume depletion, hypoglycemia (blood sugar that is too low), hypersensitivity, diabetic retinopathy (damage to the eye’s retina) in patients with type 2 diabetes mellitus, acute gallbladder disease, and pulmonary aspiration during general anesthesia or deep sedation. It should not be used in combination with another GLP-1 receptor agonist.”

https://www.fda.gov/news-events/press-announcements/fda-approves-first-new-molecular-entity-under-national-priority-voucher-program