Livmarli is the brand name of maralixibat, a prescription medicine in a class called ileal bile acid transporter (IBAT) inhibitors. It comes as an oral solution, which is a liquid you swallow.
Bile helps your body digest fats. In Alagille syndrome, the bile ducts are fewer, narrower, and malformed, so bile builds up in the liver. Cholestatic liver diseases such as PFIC and Alagille syndrome can cause severe itching, also called pruritus.
Livmarli is used to treat this cholestatic pruritus in eligible people with PFIC or Alagille syndrome. It is a long-term therapy that fits into a broader plan of nutrition, skin care, and regular follow-up with a liver specialist, including tests such as Liver Function Tests (LFTs).
A related medicine, Bylvay (odevixibat), is also an IBAT inhibitor and is used for PFIC.