RELYVRIO Powder for oral suspension Ref.[50247] Active ingredients: Sodium phenylbutyrate Ursodoxicoltaurine

RELYVRIO contains two active ingredients: sodium phenylbutyrate and taurursodiol.

The chemical designation for phenylbutyrate is 4-phenyl butyric acid sodium salt. Its molecular formula is C₁₀H₁₁NaO₂, and its molecular weight is 186.2.

The sodium phenylbutyrate chemical structure is:

Sodium phenylbutyrate is a white or yellow powder which decomposes at about 220°C. It is freely soluble in water and methanol; sparingly soluble in ethanol; and practically insoluble in methylene chloride, acetone, and diethyl ether.

Taurursodiol, also known as tauroursdeoxycholic acid, is an ambiphilic bile acid and is the taurine conjugate of ursodiol, also known as ursodeoxycholic acid. The chemical name of taurursodiol is 2-[(3α, 7β-dihydroxy-24-oxo-5β-cholan-24-yl) amino] ethane sulfonic acid, dihydrate. The molecular formula is C₂₆H₄₅NO₆S ^. 2H₂O and the molecular weight is 535.74 (dihydrate).

The taurursodiol chemical structure is:

Taurursodiol is a white microcrystalline powder, practically odorless, with a bitter taste. It is freely soluble in ethyl alcohol, very slightly soluble in acetone and dioxane, sparingly soluble in water, and practically insoluble in ether and ethyl acetate.

RELYVRIO is a white to yellow powder for oral suspension that consists of fine to large granules. RELYVRIO is supplied in a packet containing 3 g sodium phenylbutyrate (equivalent to 2630 mg phenylbutyrate) and 1 g taurursodiol. Each packet contains 464 mg of sodium and also contains the following inactive ingredients: acacia, dextrates, dibasic sodium phosphate, maltodextrin, medium-chain triglycerides, mixed berry flavoring, other flavoring ingredients, silicon dioxide, sodium stearyl fumarate, sorbitol, and sucralose.