Even name brand pharmaceuticals are likely to be made off shore. Pharmaceuticals can have a surprisingly deep supply chain. All of which ideally has two suppliers in case one becomes unavailable (drought, war, blockade, etc).

All of the major brands will likely have some onshore capacity, but no way that GMP facilities can be turned on overnight that could handle a sudden massive shift in volume.

Which goes back to the original question if this is really an attempt to direct policy or just looking for bribes. Manufacturing needs to be planned with years of notice.