Home / Digestive tract and metabolism / Glycerol Phenylbutyrate
ATC A16AX09 · Various Alimentary Tract and Metabolism Products
Glycerol Phenylbutyrate shortage
As of 2 Nov 2026, Glycerol Phenylbutyrate has a reported shortage in 2 of the 16 countries we track (United States, Canada), covering 3 products from 2 companies.
Countries2/16
Products3packs or presentations
Companies21 listed
Short since1 Sep 20262 months ago
Earliest return30 Jun 2027company estimate
Main reasonNot stated
United States2 products shortCanada1 product shortGermanyNo reported shortageFranceNo reported shortageItalyNo reported shortageSpainNo reported shortageIrelandNo reported shortageAustriaNo reported shortageBelgiumNo reported shortageSwitzerlandNo reported shortageCzechiaNo reported shortageNorwayNo reported shortageSwedenNo reported shortageJapanNo reported shortageNew ZealandNo reported shortageAustraliaNo reported shortage
Timeline
United StatesCanada
Solid bars run from the reported start to today; faded bars show the time left until the expected return. An arrow means no return date was given.
Which companies are short
products short, all countriesListed: Amgen AMGN · Nasdaq
Compared with similar medicines
ATC group A16AX · Various Alimentary Tract and Metabolism ProductsAffected products
| Country | Product | Company | Since | Expected back | Reason |
|---|---|---|---|---|---|
| US | RAVICTI, Oral Liquid, 1.1 g/1 mL (NDC 75987-050-06) discontinuation | Amgen Inc. | 1 Sep 2026 | not given | Not stated |
| US | RAVICTI, Oral Liquid, 1.1 g/1 mL (NDC 75987-050-07) discontinuation | Amgen Inc. | 1 Sep 2026 | not given | Not stated |
| CA | RAVICTI (25 mL) discontinuation | HORIZON THERAPEUTICS IRELAND DAC | not given | 30 Jun 2027 | Not stated |
"Expected back" is the date the company gave the authority, when it gave one. Ask a pharmacist about alternatives.