The short version
8 companies supply this market — a reasonable cushion if one runs into trouble. The price has fallen 35% in a year, to $1.57 per unit — and generics that get this cheap tend to get abandoned rather than defended. One of its named manufacturing plants, Zhejiang Huahai Pharmaceutical Co., Ltd., 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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