I don't have a copay on epipens, but I do have a deductible. This actually can help me but the max is $100 off of full price (a few years ago I got $75 off with a similar card).
Oh, I didn't think you would be terribly concerned about the savings, I thought the company helping patients use their insurance was a nice addendum to your comment about the agency problem.
Edit: The way I read it, if you give the card to the pharmacy, the company will pay the $25 on your wife's plan.
https://www.epipen.com/en/copay-offer
(I didn't read it closely, but the eligibility criteria seem to be 'private insurance')