Is Lyrica on the banned list?
I suspect that this one, also, would absolutely underwhelm the decision makers at Gatwick. It's another one whose primary indication is epilepsy (see above). Interestingly, if you look on this page
Lyrica (pregabalin) under the heading "what's it used for ?" migraine isn't even mentioned, but epilepsy and anxiety definitely are.
It would be well worth asking about this in your own country too (FAA).
We have seen examples on this forum in fairly recent weeks of other countries where very different approaches are taken to pilots on mind or mood altering medication. I can only advise that under the JAR system (which includes the UK CAA) such things are very firmly proscribed - and I personally hope it stays that way. Safety first at all times !