What Is The TRICARE Formulary? Coverage & Tiers Explained

*TRICARE.com is an independent reference site and is not an official government agency. For official policy and the most current data, visit TRICARE.mil.*

## Quick answer The TRICARE Formulary is the official list of brand-name and generic drugs that TRICARE covers. Managed by Express Scripts, it categorizes medications into four "tiers" that determine your out-of-pocket costs and where you can fill your prescriptions.

## Details TRICARE’s pharmacy benefit is uniform across all plans (Select, Prime, and For Life), but the price you pay depends on which "tier" your drug falls into within the formulary. The Department of Defense Pharmacy and Therapeutics (P&T) Committee meets quarterly to update this list based on a drug's effectiveness and cost.

### The Four Tier System (2026 Rates) Your copayment is determined by which tier your medication occupies:

* **Tier 1: Generic Drugs.** These have the lowest copayments. They are widely available at military pharmacies for $0 or via home delivery for a small fee (approx. $17 for a 90-day supply in 2026). * **Tier 2: Preferred Brand-Name Drugs.** These are medications that the DoD has determined provide excellent clinical value at a negotiated price (approx. $43 for a 90-day supply via home delivery in 2026). * **Tier 3: Non-Preferred Brand-Name Drugs.** These are typically higher-cost drugs that have a Tier 1 or Tier 2 alternative. You will pay significantly more for these (approx. $91 for a 90-day supply). * **Tier 4: Non-Covered Drugs.** These have little to no clinical advantage over cheaper alternatives. TRICARE generally does not pay for these unless a medical necessity waiver is approved.

### Where You Fill Matters The formulary also dictates *where* you can get your medicine. Some "specialty" drugs on the formulary can only be filled through the TRICARE Pharmacy Home Delivery (Express Scripts). * **Military Pharmacy:** $0 copay for most formulary drugs. * **Home Delivery:** Best for maintenance medications. * **Retail Network:** Best for short-term needs (e.g., antibiotics), though often more expensive than home delivery for long-term use.

### The Formulary Search Tool Because the status of a drug can change quarterly, beneficiaries should use the **TRICARE Formulary Search Tool**. This digital database allows you to type in a drug name and see: 1. If the drug is covered. 2. What the specific copay will be for 2026. 3. If the drug requires **Prior Authorization (PA)** or **Medical Necessity (MN)** paperwork from your doctor. 4. If there are **Quantity Limits** (e.g., only 30 pills per 30 days).

## Who this affects The TRICARE formulary applies to almost all beneficiaries, though specific costs vary by their "group" status (Group A vs. Group B): * Active duty service members (always $0 copay for covered drugs). * Active duty family members. * Retired service members and their families. * National Guard and Reserve members (on active duty or enrolled in TRS). * TRICARE For Life (TFL) beneficiaries. * Survivors and Medal of Honor recipients.

## Sources * **TRICARE.mil:** Pharmacy Overview (https://www.tricare.mil/pharmacy) * **Express Scripts:** TRICARE Formulary Search Tool (https://www.express-scripts.com/tform) * **Defense Health Agency (DHA):** Pharmacy Operations (https://health.mil) * **TriWest Healthcare Alliance:** West Region Pharmacy Info (https://www.triwest.com)