Known side effects
Semaglutide injection may cause side effects.
Tell your doctor if any of these symptoms are severe or do not go away:
nausea
vomiting
diarrhea
abdominal pain
constipation
heartburn
burping
Some side effects can be serious. If you experience any of these symptoms call your doctor immediately or get emergency medical treatment

ngoing pain that begins in the upper left or middle of the stomach but may spread to the back, with or without
vomiting
rash;
itching;
swelling of the eyes, face, mouth, tongue, or throat;
or difficulty breathing
or swallowing
decreased urination;
or swelling of legs, ankles, or feet
vision changes
fainting or dizziness
pain in upper stomach;
yellowing of skin or eyes;
fever; or clay-colored stools (in those receiving semaglutide [Wegovy] for management of weight loss)rapid heartbeat
dizziness, light-headedness, sweating, confusion or drowsiness, headache, blurred vision, slurred speech, shakiness, fast heartbeat, anxiety or irritability or mood changes, hunger, weakness, or feeling jittery
https://medlineplus.gov/druginfo/meds/a618008.html