Answer
Intravascular contrast may contribute to kidney impairment in susceptible patients, allowing metformin to accumulate and increasing the risk of lactic acidosis.
Sources for this answer
- Urografin 150 for Infusion — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.