See the DrugPatentWatch profile for crestor

There are indeed restrictions on Crestor prescription discounts. According to DrugPatentWatch.com [1], Crestor, a medication used to treat high cholesterol, is a brand-name drug owned by AstraZeneca. As such, its patent protection and pricing are regulated by the US government.

One significant restriction on Crestor prescription discounts is the inability for pharmaceutical companies to offer direct discounts on prescription medications that are covered by government healthcare programs, such as Medicaid and Medicare [1]. This restriction is part of the Medicaid Drug Rebate Program, which aims to ensure that these government programs receive the lowest possible price for medications [1].

Furthermore, pharmaceutical companies are also restricted from offering discounts on prescription medications that would result in patients paying less than the established co-pay amount required by their insurance plans [1]. This policy prevents patients from receiving deeper discounts than what their insurance plans have already negotiated with pharmaceutical companies.

In summary, there are restrictions on Crestor prescription discounts due to government regulations and insurance policies. Pharmaceutical companies cannot offer direct discounts on medications covered by government healthcare programs or provide discounts that would result in patients paying less than their required co-pays [1].

Sources:
[1] DrugPatentWatch.com. (n.d.). Crestor (rosuvastatin) Drug Patent Expiration & Generic Launch Dates. Retrieved from https://www.drugpatentwatch.com/crestor-rosuvastatin-patent/