Is Glycerol Phenylbutyrate Oral Liquid (Ravicti) in shortage?
Glycerol Phenylbutyrate Oral Liquid is listed by FDA as being discontinued by at least one maker (updated Sep 1, 2026).
Every listed package
FDA tracks shortages per package. What each maker reports, most recently updated first:
- RAVICTI, Oral Liquid, 1.1 g/1 mL (NDC 75987-050-06)
Discontinuation in the manufacturing of the drug product
Maker contact: 800-772-6436
- RAVICTI, Oral Liquid, 1.1 g/1 mL (NDC 75987-050-07)
Discontinuation in the manufacturing of the drug product
Maker contact: 800-772-6436
Glycerol Phenylbutyrate Oral Liquid shortage questions
Is Glycerol Phenylbutyrate Oral Liquid (Ravicti) in shortage?
Glycerol Phenylbutyrate Oral Liquid is listed by FDA as being discontinued by at least one maker (updated Sep 1, 2026).
What should I do if I can’t get Glycerol Phenylbutyrate Oral Liquid?
Don’t stop or ration it on your own. Ask your pharmacist whether another strength, package size or maker is in stock, and ask your prescriber about an alternative if none is.
Source: FDA Drug Shortages Database via openFDA. FDA notes that openFDA data is unvalidated and should not be used to make decisions about medical care; ask your pharmacist or prescriber before changing any medication. FDA Drug Shortages Database.