See the DrugPatentWatch profile for crestor

Crestor, a medication used to treat high cholesterol, does have specific restrictions on discounts. However, the details of these restrictions are not publicly available. According to DrugPatentWatch.com, Crestor's patent expired in December 2016, which may affect the availability and cost of the drug [1]. Post-patent expiration, generic versions of the drug become available, increasing competition and potentially leading to price decreases.

However, the manufacturer of Crestor, AstraZeneca, may still offer discounts or patient assistance programs. These programs often have restrictions based on factors such as income, insurance status, and treatment history. The specifics of these restrictions are typically not publicly disclosed and may vary depending on the program [2].

It's recommended to contact AstraZeneca directly or visit their website to get the most accurate and up-to-date information about any available discounts or assistance programs for Crestor [3].

Sources:
[1] https://www.drugpatentwatch.com/drugs/crestor
[2] https://www.needymeds.org/medication/Crestor
[3] https://www.astrazeneca-us.com/medicines/pi/crestor.html#section-9