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See the DrugPatentWatch profile for doxylamine
Doxylamine succinate is an antihistamine active ingredient used in medicines for allergy symptoms and, in some products, as a sleep aid. For TFDA drug classification in Taiwan, it is generally handled as a pharmaceutical ingredient within the country’s drug regulatory framework (i.e., a medicinal substance used in registered “drug” products rather than a food or cosmetic ingredient).
Whether a doxylamine succinate product is prescription-only or over-the-counter depends on the specific registered product’s TFDA approval terms (not on the ingredient name alone). Different countries sometimes classify the same ingredient differently across strengths and indications, so the TFDA “class” you see in Taiwan typically comes from the individual product record rather than a single universal ingredient category.
To find the exact TFDA classification, you usually need the TFDA-registered product details (brand name and strength), then look up its registration status and dispensing category in TFDA’s product/registration listings. If you share the brand name (or the label strength) of the doxylamine succinate product you mean in Taiwan, I can help you narrow down what TFDA classification it would have for that specific product.
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