Why Is Alprazolam Not Covered By Medicare? 
For the most part , Medicare only covers prescriptions when one is hospitalized , under Part A . Some types of medications , such a certain cancer treatments , can also be covered under Medicare Part B , though most drugs one takes outside of a hospital are only covered if you have added Medicare Part D prescription coverage through a private insurance company . In such a case , this medication could be covered , as long as it appears on your company 's formulary list of covered medications , as the drug is considered to be medically necessary . 