As you know, only the retail price of formulary drugs purchased with your Part D plan are counted toward your entry into the Coverage Gap or Doughnut Hole.
There are a number of Medicare Part D plan costs or drug store expenses that do not change when you enter into, or when you exit, the Doughnut Hole, such as:
Your monthly prescription drug plan premiums do not count toward your Doughnut Hole.
Any medications or drugs that are purchased outside of your Medicare prescription drug plan do not count toward the Doughnut Hole. For instance, if you purchase a prescription that is normally covered by your Medicare Part D plan and forget to use your Part D plan, you will pay full retail cost for the drug and the purchase will not be counted toward the Doughnut Hole.
Any medications that you purchase outside of the United States do not count toward the Doughnut Hole.
Any medications not covered by your Medicare prescription drug plan (including OTC or over-the-counter drugs or non-formulary prescriptions) also do not count toward your Doughnut Hole.