Bristol Myers Squibb Co. is moving to halt an Arkansas law from going into effect that the drugmaker alleges favors pharmacies within the state’s borders and discriminates against those beyond, calling the legal framework “overt economic protectionism.”

Filed Tuesday in the US District Court for the Eastern District of Arkansas, Bristol Myers Squibb‘s complaint claims the state’s Act 630violates the US Constitution by interfering with interstate commerce. The drugmaker in its complaint also says the law is at odds with US Food and Drug Administration regulations as it forces the company to rely on in-state pharmacies even if …