I only have a portion of the original blister pack which was cut. All writing is black on silver foil. The part of the blister pack has England UK written, and "ts" where it was presumably cut through the word "tablets". It has a post code EX32 8NS, which belongs to Actavis UK. After the "... ts" it has BP then 10mg in an oval box. Next to that is a rectangle containing the letters "POM".

The tablets themselves, as described above, are round and white, not flat but slightly raised either side.
One side has a capital M and P, separated by a score line running the length of the tab. The other side just has the word "COX" in capitals with no score line or numbers.
Thanks a lot for any possible help, Ive had no luck so far elsewhere.