Why are my supplements in the same list as my medicines?

Because a doctor reading that list is looking for things that clash, and a supplement can clash with a medicine just as easily as another medicine can. The usual way a supplement gets missed is being on a separate list that nobody reads. Each row says whether it is a medicine or a supplement, so nothing is disguised, and a product's ingredients come with it. Your turmeric capsules arrive as turmeric and black pepper, not as a brand name.