Finished pharmaceutical preparations — including tablets, capsules, injectables, and topical formulations — represent one of the most tightly regulated import categories, with FDA admissibility review, foreign facility registration, and drug listing requirements all applying before a shipment can enter US commerce. The HTS classification of a preparation depends on its active ingredient, dosage form, and therapeutic category, and misclassification can trigger both duty underpayment issues and regulatory holds. Products subject to Section 301 tariffs based on origin add another layer of cost analysis for importers sourcing from affected countries. Serialization and traceability requirements under the Drug Supply Chain Security Act also apply to most finished prescription drug imports.

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