Hello ladies,
Theramex has replied to other MM ladies, me included, and the replies are vague, except for the one given to Hurdity, saying the supply issue is related to the adhesive. However, FemSeven (oestrogen only) patches are widely available and listed as the only FemSeven product on Theramex website, They don't seem to have any adhesive issue, so it seems plausible that the levonorgestrel part of the patch is the real issue.
Another possibility is that their patent is expired and maybe a generic product will be available in the near future.
Conolly X