Creates the Preserving Access to Affordable Drugs Act. Provides that an agreement resolving or settling, on a final or interim basis, a patent infringement claim in connection with the sale of a pharmaceutical product is presumed to have anticompetitive effects and is a violation of the Act if certain circumstances apply. Provides other requirements for patent infringement claims in connection with the sale of a pharmaceutical product. Contains provisions regarding presumptions in an action under the Act. Provides civil penalties for violating the Act. Provides that any penalty shall accrue only to the State of Illinois and shall be recovered in a civil action brought by the Attorney General against any party to an agreement that violates this Act. Requires an action to enforce a cause of action for a violation of the Act to be commenced within 4 years after the cause of action accrued. Contains other provisions.