The short version
11 companies supply this market — deep enough that no single failure threatens the supply. The generic price is down 14% over the past year, to $28.49 per mL. The brand (Depo-Provera) runs $52.33 per mL — 2.3× more. Put together: this looks like a healthy supply — the boring kind, which is exactly what you want. 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%).
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.