The short version
22 companies supply this market — deep enough that no single failure threatens the supply. The price is up 9% over the past year, to $0.1057 per unit. A Class II recall hit this product in the past year (Bell Pharmaceuticals, Inc). 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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