You should contact your GP or healthcare provider if you experience: Persistent green stools lasting more than a week without obvious dietary explanation Black, tarry stools (melaena), which may indicate upper gastrointestinal bleeding Bright red blood in stools (haematochezia) or on toilet paper Pale, clay-coloured, or white stools , which could suggest bile duct obstruction or liver problems Diarrhoea lasting more than 48 hours , particularly if accompanied by dehydration symptoms Severe abdominal pain , especially if localised to the upper abdomen and radiating to the back, which could indicate pancreatitis (a rare but serious side effect of GLP-1 receptor agonists) Right upper quadrant pain , particularly after fatty meals, which may suggest gallbladder problems Yellowing of the skin or eyes (jaundice) with dark urine, which could indicate liver or gallbladder issues Signs of dehydration: excessive thirst, dark urine, dizziness, reduced urination, or dry mouth Persistent vomiting preventing adequate fluid or medication intake Unexplained weight loss beyond expected therapeutic effects Fever accompanying stool changes , suggesting possible infection For urgent but non-emergency concerns, contact NHS 111

Comparison with Other Medications Tirzepatide has been compared with other popular diabetes and weight loss medications, including: Semaglutide Dulaglutide Insulin glargine In a 2021 meta-analysis , tirzepatide outperformed these drugs in controlling blood sugar and promoting weight loss
Exenatide, the active ingredient in Bydureon BCise, was the first GLP-1 medication to be approved by the FDA
These symptoms are more concerning when they are severe, persistent, or paired with dizziness, dark urine, confusion, fainting, or inability to keep fluids down
Daily movement drops: nausea or schedule changes can reduce steps and NEAT, shrinking your calorie burn (IAPAM overview)
That's why saline is always single-use