The short version
Just 3 companies supply this market — thin enough that a single exit would be felt immediately.
Market view
16 marketed package NDCs · 3 active manufacturers
Most dispensed: 150 mg · Injection, Powder, For Solution · #12 vial, glass/carton / 1 injection, powder, for solution in 1 vial, glass · 150 mg/2mL · Injection, Powder, Lyophilized, For Solution · #1 vial/box / 2 ml in 1 vial · 150 mg · Injection, Powder, For Solution · #1 vial/carton / 1 injection, powder, for solution in 1 vial · 150 mg · Injection, Powder, For Solution · #1 vial, glass/carton / 1 injection, powder, for solution in 1 vial, glass
Just 3 companies supply this market — thin enough that a single exit would be felt immediately.
Other molecules FDA puts in Polymyxin-class Antibacterial, 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.