Aetna Formulary 2025 Medicare Formulary. The formulary and pharmacy network may change at any time.  — aetna® medicare has a transition policy for prescription drugs you may be taking that aren't on our formulary (drug list) or are subject to new requirements.

2025 aetna health exchange plan:  — visit aetnamedicare.com to learn more about our 2025 aetna medicare plans.