The short version
8 companies supply this market — a reasonable cushion if one runs into trouble. The generic price has fallen 42% in a year, to $494.81 per mL — and generics that get this cheap tend to get abandoned rather than defended. The brand (Bonsity) runs $1167.90 per mL — 2.4× more. Put together: worth watching — several of the pressures that precede supply trouble are present at once. Historically, drugs in this position went on to a new shortage within 90 days about 0.2% of the time — roughly 2× the typical drug (0.1%).
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