The short version
Just 3 companies supply this market — thin enough that a single exit would be felt immediately. The generic price has fallen 48% in a year, to $10.53 per mL — and generics that get this cheap tend to get abandoned rather than defended. The brand (Inveltys) runs $103.18 per mL — 6.4× more. One of its named manufacturing plants, Lupin Limited, failed FDA inspectionwithin the last two years — the agency’s most serious outcome. Put together: this looks like a healthy supply — the boring kind, which is exactly what you want.
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