DrugDashboards

Market view

glycerol phenylbutyrate · Powder

4 marketed package NDCs · 3 active manufacturers

Most dispensed: 1.1 g/mL · Liquid · #1 bottle/carton / 25 ml in 1 bottle

The short version

Just 3 companies supply this market — thin enough that a single exit would be felt immediately.

What changed in the last 90 days

Every detected change for glycerol phenylbutyrate, newest first — price moves, shortages, recalls, and manufacturers entering or leaving. Detected by comparing each day’s federal data against the day before.

  • RavictiSep 3, 2026
    New shortageby this manufacturer
    Amgen Inc.'s Ravicti (Oral Liquid, 1.1 g/1 mL) is newly in shortage15 companies market ravicti
  • RavictiSep 3, 2026
    New shortageby this manufacturer
    Amgen Inc.'s Ravicti (Oral Liquid, 1.1 g/1 mL) is newly in shortage15 companies market ravicti
  • Mfr entered
    Navinta LLC · glycerol phenylbutyrate
  • New product
    Navinta LLC

Same drug class

Other molecules FDA puts in Nitrogen Binding Agent, with whether each is in shortage right now. Same class is not the same drug — substitution is a clinical decision, and this is a supply picture, not a recommendation.

Common questions

Is Glycerol phenylbutyrate in shortage right now?
No. FDA does not currently list Glycerol phenylbutyrate in shortage. This page is rebuilt every morning from FDA's shortage database, so a new posting appears here the day it is published.
Who makes Glycerol phenylbutyrate?
15 companies have marketed Glycerol phenylbutyrate in the last 30 days, according to the FDA NDC Directory. Every manufacturer and package is listed on this page.

All marketed products

Expand a strength to see its dosage forms, then package sizes, then each manufacturer and NDC. Click an NDC for its full detail page.