Importing pharmaceuticals, food, food supplements, products for animal health, medical devices, cosmetics, or other medical and hazardous substances into Thailand requires registration with the Food and Drug Administration of Thailand (FDA).

The Thai FDA requires importers and manufacturers in Thailand to obtain FDA approval prior to importing or manufacturing drugs or medicines in Thailand. The FDA categorizes drugs by modern, general medicines, traditional medicines, and veterinary medicines. Each category has separate registration requirements. General medicines are grouped into separate categories: generic medicines, new medicines, and new generics. Each medicine category also has a distinct set of registration requirements.