The short version
Just 3 companies supply this market — thin enough that a single exit would be felt immediately.
Market view
6 marketed package NDCs · 3 active manufacturers
Most dispensed: 100 mg/mL · Injection, Solution · #1 vial, multi-dose/box / 10 ml in 1 vial, multi-dose · 100 mg/mL · Injection, Solution · #10 vial, multi-doses/box / 10 ml in 1 vial, multi-dose
Just 3 companies supply this market — thin enough that a single exit would be felt immediately.
Other molecules FDA puts in Cytoprotective 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.
Expand a strength to see its dosage forms, then package sizes, then each manufacturer and NDC. Click an NDC for its full detail page.