The short version
14 companies supply this market — deep enough that no single failure threatens the supply. The generic price has fallen 47% in a year, to $6.75 per mL — and generics that get this cheap tend to get abandoned rather than defended. The brand (Alphagan P) runs $37.33 per mL — 3.7× more. One of its named manufacturing plants, Somerset Therapeutics Private 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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