The short version
Just 2 companies supply this market — thin enough that a single exit would be felt immediately.
Market view
3 marketed package NDCs · 2 active manufacturers
Most dispensed: TRAVOPROST 75 ug · Implant · #1 pouch/carton / 1 tray in 1 pouch / 1 canister in 1 tray / 1 implant in 1 canister
Just 2 companies supply this market — thin enough that a single exit would be felt immediately.
Other molecules FDA puts in Prostaglandin Analog, 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.