Miss. Code Ann. § 41-149-7: Miss. Code Ann. § 41-149-7

(1) A manufacturer or distributor shall not deny, restrict, prohibit, or otherwise interfere with, either directly or indirectly, the acquisition of a 340B drug by, or delivery of a 340B drug to, a pharmacy that is under contract with a 340B entity and is authorized under such contract to receive and dispense 340B drugs on behalf of the covered entity unless such receipt is prohibited by the United States Department of Health and Human Services.

(2) A manufacturer or distributor shall not interfere with a pharmacy contracted with a 340B entity.