Over-the-counter (OTC) products refer to nonprescription medications and treatments that consumers can purchase directly without a clinician’s prescription.

In a regulatory and e-commerce context, OTC items occupy a very different space than prescription or controlled substances. Unlike gray-market novelties or restricted prescription syrups, compliant OTC products are legally marketable online, provided they adhere to strict federal standardization.

Regulatory Pathways for OTC Products

• OTC Monograph System: Regulated by specific monograph standards that pre-approve certain active ingredients, dosages, formulations, and labeling requirements without requiring an individual pre-market application.

• New Drug Application (NDA): Required for nonprescription products that fall outside established monographs, including “Rx-to-OTC switches” (drugs transitioning from prescription-only to over-the-counter status).