SincalideDiagnostic peptide

What is Sincalide?

Sincalide is a synthetic peptide corresponding to the active end of cholecystokinin. It is used in diagnostic settings involving gallbladder function.

How it works

It stimulates gallbladder contraction. The measured response depends on the administration and imaging protocol.

Effects studied

What does the evidence show?

Diagnostic use and protocol-comparison research

Making a response visible

Sincalide is a short synthetic version of the active end of cholecystokinin, a digestive hormone. After a meal, this signalling system helps coordinate bile release and pancreatic secretion. During a test, a controlled stimulus lets clinicians observe a response that would otherwise be difficult to compare.

What the scan measures

One application is assessing gallbladder emptying during hepatobiliary imaging. An ejection fraction describes the proportion emptied under the test conditions. It is a measurement of a particular response, not a complete explanation for abdominal pain or proof that every symptom comes from the gallbladder.

Why the protocol matters

Infusion timing can affect both gallbladder contraction and discomfort during the test. The archived multicentre study compared infusion methods to address this variability. Interpreting a result requires a procedure and reference range that match; an isolated number can be misleading.

A diagnostic tool, not digestive support

Cramping, nausea, flushing or dizziness can occur around administration. Pregnancy, bowel obstruction and the person’s clinical circumstances need assessment before testing. Sincalide belongs within a supervised diagnostic procedure. Stimulating a physiological response does not establish relief of a chronic digestive disorder or a role as an everyday digestive supplement.

Safety & status

Abdominal cramps, nausea, flushing and dizziness can occur. Pregnancy and bowel-obstruction considerations belong to the product-specific clinical assessment.