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Help · Side-effect guide

Side effects, in plain English.

What our pharmacists tell every patient before they start. Pick the medicine you're asking about on the left.

LIKELY · MORE THAN 1 IN 10
  • Mild to moderate nausea, especially in the first 2 weeks.
  • Fatigue, reduced energy during titration.
  • Constipation or, less often, diarrhoea.
  • Mild headache.
POSSIBLE · 1 IN 10 TO 1 IN 100
  • Dizziness, dehydration if fluids not increased.
  • Reflux, burping, gastrointestinal discomfort.
  • Injection-site irritation.
SERIOUS · RARE, CONTACT US IMMEDIATELY
  • Severe abdominal pain (possible pancreatitis).
  • Unusual visual changes (rare retinal effects).
  • Severe vomiting or signs of dehydration.

This information is reviewed by our pharmacist team and reflects the manufacturer's SmPC and our own dispensing experience. It does not replace your individual pharmacist's advice.