The short version
4 companies supply this market — a reasonable cushion if one runs into trouble. It is in shortage right now — FDA lists the reason as “demand increase for the drug”.
Market view
9 marketed package NDCs · 4 active manufacturers
Most dispensed: 6 [hp_X]/mL · Liquid · #30 mL/bottle, dropper
4 companies supply this market — a reasonable cushion if one runs into trouble. It is in shortage right now — FDA lists the reason as “demand increase for the drug”.
Other molecules FDA puts in Catecholamine, 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.