The short version
8 companies supply this market — a reasonable cushion if one runs into trouble. The generic price has fallen 42% in a year, to $32.00 per mL — and generics that get this cheap tend to get abandoned rather than defended. The brand (Victoza) runs $87.78 per mL — 2.7× more. It is in shortage right now — FDA lists the reason as “delay in shipping of the drug”. Put together: this is a fragile supply — if anything else goes wrong, there is very little slack to absorb it.
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