Investigation and a pending class action lawsuit on behalf of wholesalers and pharmacies, alleging that AztraZeneca used a fraudulently obtained patent to block the entry of lower priced generic competitors to their brand-name prescription medication, sold under the brand name Toprol XL.
The class action lawsuit alleges that AztraZeneca engaged in the anticompetitive conduct forced all purchasers to overpay for this prescription medication.
Do not change medications without first consulting your doctor.