The short version
7 companies supply this market — a reasonable cushion if one runs into trouble. The brand price has held steady around $3.13 per mL over the past year. Generic versions run $1.23 per mL — 314× cheaper. It is in shortage right now — FDA lists the reason as “other”. Put together: worth watching — several of the pressures that precede supply trouble are present at once.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.