Kass M A, Gordon M
Am J Ophthalmol. 1981 Aug;92(2):273-8. doi: 10.1016/0002-9394(81)90784-4.
The passage of the Missouri generic drug law in 1979 did not increase the dispensing of generic antiglaucoma medications, nor did it reduce retail prices. In 1976 and in 1980, antiglaucoma medications purchased with generic prescriptions were no less expensive than medications purchased with brand-name prescriptions. Almost all generic prescriptions were filled with brand-name products. A wide range of prices (approximately twofold) was noted from pharmacy to pharmacy for each drug. The retail cost of antiglaucoma medication increased approximately 35% between March and April 1976 and July and August 1980. This was less than the increase in the Consumer Price Index for the urban United States during the same period.
1979年密苏里州通用药品法的通过并未增加通用抗青光眼药物的配药量，也未降低零售价格。1976年和1980年，用通用处方购买的抗青光眼药物并不比用品牌处方购买的药物便宜。几乎所有通用处方都配给了品牌产品。每种药物在不同药店的价格差异很大（约两倍）。1976年3月至4月与1980年7月至8月期间，抗青光眼药物的零售成本上涨了约35%。这低于同期美国城市消费者价格指数的涨幅。
