The short version
16 companies supply this market — deep enough that no single failure threatens the supply. The price has fallen 41% in a year, to $6.74 per mL — and generics that get this cheap tend to get abandoned rather than defended. 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 0.5% of the time — roughly 3× the typical drug (0.1%).
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