; (C) requires the methods used in, and the facilities and controls used for, the manufacture, processing, and packing of drugs in the country to be adequate to preserve the identity, quality, purity, and strength of the drugs; and (D) requires the reporting of adverse reactions to drugs and establish procedures to recall, and withdraw approval of, drugs found not to be safe or effective. (f) Labeling Any qualifying prescription drug imported that meets the labeling requirements described in subsection (b)(5)(A)(iv) is deemed not misbranded for purposes of section 502. (g) Drug testing laboratories The Secretary may approve one or more laboratories to conduct random testing of prescription drugs sold by certified foreign sellers to assess the chemical authenticity of such drugs. (h) Unfair and discriminatory Acts and practices It is unlawful for a manufacturer, directly or indirectly (including by being a party to a licensing agreement or other agreement)— (1) to discriminate by charging a higher price for a prescription drug sold to a certified foreign seller that sells such drug to an importer in accordance with this section than the price that is charged, inclusive of rebates or other incentives to the country from which the drug is exported, to another person that is in the same country and that does not import such a drug into the United States in accordance with this section; (2) except with respect to a prescription drug on the drug shortage list under section 506E, discriminate by denying, restricting, or delaying supplies of a prescription drug to a certified foreign seller, on account of such seller's status as a certified foreign seller, that sells such drug to an importer in accordance with this section, or by publicly, privately, or otherwise refusing to do business with such a certified foreign seller on account of such seller's status as a certified foreign seller