Bismuth citrate is an inorganic salt and it is not metabolized. No porphyrinogenic effects are expected.

Bismuth subcitrate (bismuth tripotassium dicitrate) is a salt of bismuth, potassium and citric acid (Drug Bank).

Bismuth citrate is used in the treatment of gastroduodenal disorders and may be used in combination with other drugs for eradication of Helicobacter pylori. It is administrated orally.

Bismuth is widely distributed throughout the entire body, and is eliminated through urinary and biliary routes. Half-life of 5 days suggests tissue accumulation (FDA). No studies of CYP interaction potential is identified, but this is not expected.