Does anyone know where the majority of our drugs here are made (or does it depend on what type?)
I read something recently that claimed 97% of antibiotics in the US, come from China!!
It depends very much on what you mean by "drugs"!
There are, broadly, two components to most medicines: the Active Pharmaceutical Ingredient(s) (API) and the Excipients (inactive ingredients).
The pharmaceutical industry is very closed. We simply do not know where the actual pill makers get their APIs and excipients from. Indeed, even is we know that A buys something from B, we don't know where B gets their raw materials from.
About some products we know quite a bit - the actual factories used to produce many of the Covid vaccines, for example. But even then, the steps can be divided - with Wockhardt in Wrexham doing the "finishing" of AstraZeneca's vaccine. But we likely know nothing of the raw materials used by AZ.
Nonetheless, I think we can reasonably claim that Pfizer, Moderna, AstraZeneca vaccines were not made in China.
The levothyroxine powder used to make the tablets I take could come from anywhere. Nor do we know where the excipients come from. The 100 microgram tablets are made in Barnstaple, Devon (and possibly Tyneside, as the manufacturer bought up a factory up there). While the 25 microgram tablets are made in Brighton.
Occasionally we know a bit more. For example, if the excipients include branded products (such as Opadry or coatings).
And we know that all USA desiccated thyroid products are made from thyroids harvested from pigs in the usual USA food chain.
It seems quite possible that large quantities of APIs come from China. Have a look at Ali Baba. Last time I did, I saw levothyroxine powder in vast quantities. My own tablets contain approximately 112.5 micrograms per day. Which works out at around 40 milligrams a year. Or half quite a small tablet (if it were pure API). So just what would you need huge numbers of kilograms for? In a few minutes, you could order more than the population of the UK would need for at least a year. A few more minutes and you'd have enough for Europe.
We are in difficulty in that substantial quantities of some APIs are used for animals.
We know that there are three factories in the world that make vitamin B12 - with virtually all European product coming from a French company. They use a sophisticated bio-reactor process.
And we knew that some European liothyronine products had their API manufactured in Austria.