I can't get Duphaston for PCOS

[MoyaMoya12]

I came to UK from Japan last year.

I have to take Duphaston for PCOS, but

I haven't found the medicine yet and my GP told me

just "no medicine for PCOS"....

I have to take the medecine 2weeks per a month,

2 tublet per a day during the weeks.

I'd like to ask what should I do if you know about the problem.

Thank you.