Common effects
Nausea, vomiting, diarrhoea, constipation, abdominal discomfort and reduced appetite are reported with several GLP-1 medicines. The likelihood and wording differ by product, indication and person, so the current leaflet for the exact medicine matters.
Why hydration matters
Vomiting or diarrhoea can lead to dehydration. Product information for several medicines warns that dehydration may worsen kidney problems. Persistent symptoms, inability to keep fluids down or markedly reduced urination should not be treated as a routine tracking issue.
Symptoms that need attention
Severe persistent abdominal pain, especially with vomiting, can be a warning sign of pancreatitis. Upper-abdominal pain, fever or yellowing may indicate gallbladder problems. Severe allergic symptoms, collapse, breathing difficulty or rapidly worsening illness require emergency help.
Useful information to track
- Exact product and administration date
- Symptom, severity, start time and duration
- Food and fluid tolerance
- Other diabetes medicines and glucose readings if requested by a clinician
When to seek help
Seek urgent medical advice for severe or persistent abdominal pain, signs of severe dehydration, an allergic reaction or any rapidly worsening symptom.
Sources
Reviewed against the following official guidance and primary evidence. Product information and clinical guidance can change.