Military families rely on TRICARE for healthcare, and prescriptions are a major part of that benefit. Express Scripts TRICARE refers to the arrangement under which Express Scripts administers the TRICARE Pharmacy Program on behalf of the Department of Defense, serving roughly 9 to 10 million active-duty service members, retirees, and their family members. Whether you fill at a military pharmacy, a retail network pharmacy, or through home delivery, Express Scripts processes those claims. Here is how the system works and how to get the most from your benefit. This article is general, informational, and not affiliated with TRICARE or Express Scripts; because program details change, verify current specifics through the official sources listed at the end.
How Express Scripts Manages TRICARE Pharmacy Benefits
The Defense Health Agency contracts with Express Scripts to administer pharmacy benefits for TRICARE-eligible beneficiaries. Express Scripts has held this role for many years, and under the current contract it handles formulary management, claims processing, home-delivery (mail-order) pharmacy operations, and the retail pharmacy network for TRICARE. Government pharmacy contracts are periodically re-competed and can change over time, so it is worth confirming the current administrator if you are reading this well after publication.
Express Scripts TRICARE operates differently from a typical commercial pharmacy benefit in several important ways. The formulary is standardized across TRICARE plans rather than varying by employer. Copay amounts are set by federal regulation, not by individual plan sponsors. And military treatment facility (MTF) pharmacies remain the lowest-cost option for beneficiaries, operating outside the retail network.
TRICARE Pharmacy Copay Structure
TRICARE prescription costs depend on two factors: the type of drug (generic, brand-name formulary, or non-formulary) and where you fill it. The amounts below reflect the 2026 schedule for standard beneficiaries; medically retired members and certain survivors, as well as active-duty members, are treated differently (see below). Always confirm current rates before you rely on them, as they are reviewed and adjusted over time.
Military pharmacy (up to a 90-day supply): $0 for covered formulary medications — the cheapest option available for both generics and brand-name drugs. Non-formulary drugs are generally not stocked and require medical necessity.
Home delivery / mail order through Express Scripts (up to a 90-day supply): approximately $14 for generic formulary drugs, $44 for brand-name formulary drugs, and $85 for non-formulary drugs (with non-formulary coverage generally requiring an approved medical-necessity request).
Retail network pharmacy (up to a 30-day supply): approximately $16 for generic formulary drugs, $48 for brand-name formulary drugs, and $85 for non-formulary drugs. For ongoing (maintenance) medications, retail is typically the most expensive route because you refill more frequently for smaller day-supplies.
Active-duty service members generally pay $0 for covered drugs at a military pharmacy, through home delivery, and at a retail network pharmacy, though a provider must establish medical necessity for non-formulary drugs.
According to TRICARE and the Military Health System, copay amounts are reviewed periodically and may change. Always verify current rates on the official TRICARE website or through Express Scripts before assuming a price.
Setting Up Home Delivery with Express Scripts TRICARE
Home delivery is strongly encouraged for TRICARE beneficiaries taking maintenance medications. The cost advantage is meaningful — you generally get up to a 90-day supply at home-delivery prices rather than paying the retail copay repeatedly for shorter fills.
To set up home delivery, register on the official Express Scripts TRICARE beneficiary website or call the phone number printed on your pharmacy materials or listed on the official site. Have your identifying information and prescription details ready when you enroll. Because exact registration steps, identifiers, and routing details can change, follow the current instructions on the official TRICARE/Express Scripts site rather than a third-party summary.
Your prescriber can send a 90-day prescription electronically to Express Scripts home delivery; your pharmacy or the official Express Scripts/TRICARE site can provide the current e-prescribing routing information. Alternatively, a paper prescription can be mailed to the address shown on the official TRICARE pharmacy website. First orders can take a couple of weeks to arrive, while subsequent refills typically ship faster; check the site for current timeframes and consider ordering refills before you run low.
The TRICARE Uniform Formulary
TRICARE uses a Uniform Formulary managed by the Department of Defense Pharmacy and Therapeutics Committee. This committee, composed of military and civilian healthcare professionals, reviews medications and assigns them to tiers:
Generic (lowest cost): generic drugs with the lowest copays — the preferred option whenever a generic equivalent is available.
Brand-name formulary: brand-name drugs approved for the TRICARE formulary, carrying moderate copays at retail and through home delivery.
Non-formulary: brand-name drugs not on the preferred formulary, which carry the highest copays. In many cases, prior authorization or a medical-necessity determination is required before coverage applies.
The formulary is updated on a regular cycle. When a drug moves between tiers, or when a new generic becomes available, your copay may change. Express Scripts generally notifies affected beneficiaries when a formulary change is expected to impact their prescriptions, but it is wise to check periodically.
Using Retail Pharmacies with TRICARE
Express Scripts maintains a retail pharmacy network for TRICARE that includes most major chains and many independent pharmacies. Present your military ID or TRICARE information at a network pharmacy to fill prescriptions at TRICARE copay rates. Network participation can change, so it is worth confirming a specific store is in-network before filling.
Filling at a non-network pharmacy is possible but more costly. You will typically pay the full price upfront and submit a claim to Express Scripts for partial reimbursement, based on the TRICARE allowable charge, which may be less than what you paid. Sticking with network pharmacies avoids this hassle.
Some TRICARE rules require beneficiaries to move certain maintenance medications to home delivery or an MTF pharmacy after an initial retail period. If that applies to your drug, continuing to fill it at retail may cost more or eventually not be covered at the retail rate — check your current benefit details.
Prior Authorization Under TRICARE
Certain medications require prior authorization before Express Scripts will cover them under TRICARE. This typically applies to high-cost drugs, drugs with significant safety considerations, or medications where a preferred alternative exists.
Your prescriber initiates the prior authorization by submitting clinical documentation supporting the need for the specific medication. Processing timeframes for coverage determinations are defined by DoD and applicable federal standards, with expedited handling for urgent situations where a delay could seriously harm the patient. If you need a timeframe for planning, ask Express Scripts or check the official site for the current standard.
If a prior authorization is denied, you have appeal rights. The first level of appeal generally goes through Express Scripts; if the denial is upheld, you can escalate through the TRICARE/Defense Health Agency appeals process, which also includes access to independent review in appropriate cases. Follow the specific instructions in your denial notice.
Specialty Medications and TRICARE
TRICARE covers specialty medications for conditions such as cancer, multiple sclerosis, rheumatoid arthritis, and hepatitis C. These prescriptions are commonly managed through Express Scripts’ specialty pharmacy or through military treatment facility pharmacies.
Specialty medications often have special handling requirements — temperature-controlled shipping, patient monitoring programs, and check-ins with clinical staff. Express Scripts coordinates these services for TRICARE beneficiaries, though copays still apply based on formulary tier placement. Confirm handling and cost details for your specific drug before your first fill.
Frequently Asked Questions
Can active-duty service members use Express Scripts home delivery?
Yes. Active-duty service members generally pay $0 for covered prescriptions through Express Scripts home delivery, whether the drug is generic, brand-name, or non-formulary (non-formulary drugs require an established medical necessity). Home delivery can be more convenient than visiting a military pharmacy, especially at installations with limited pharmacy hours.
What if my TRICARE prescription is denied by Express Scripts?
If coverage is denied, your prescriber can submit a prior authorization request with clinical justification. If that is denied, you can appeal through Express Scripts and then escalate through the Defense Health Agency appeals process. Many initial denials are resolved with proper documentation. Follow the exact steps in your denial letter.
Does TRICARE cover compounded medications?
TRICARE covers some compounded medications when commercially manufactured alternatives are not available or appropriate. The compound must be prescribed by a TRICARE-authorized provider and filled at a network pharmacy, and certain ingredients are excluded. Check with Express Scripts before filling a compounded prescription to verify coverage.
How do I check if a pharmacy is in the TRICARE network, or find the right phone number?
Use the pharmacy locator tool on the official Express Scripts TRICARE website, or call the number printed on your TRICARE pharmacy materials or listed on the official site. Enter your ZIP code to find nearby network pharmacies. Most major retail chains participate, but independent pharmacies vary by location, so confirm before filling.
Maximizing Your TRICARE Pharmacy Benefit
The single best way to save on TRICARE prescriptions is to use military treatment facility pharmacies whenever practical — covered drugs are $0. When that is not practical, home delivery through Express Scripts TRICARE is usually the next most cost-effective option, especially for maintenance medications.
Review your medications at least annually against the current TRICARE formulary, ask your prescriber about generic alternatives that could lower your copay, and set up automatic refills through Express Scripts so you do not run out of important medications. For broader context on how pharmacy benefits work across different programs, see our healthcare policy guide and our overview of what a PBM is.
Verify current details: This article is general information and is not affiliated with, or endorsed by, TRICARE, the Department of Defense, or Express Scripts. Copay amounts, formulary tiers, network participation, phone numbers, and the pharmacy contract itself can change, and TRICARE contracts are periodically re-competed. Before acting, confirm the current rates, rules, and contact information on the official TRICARE website (tricare.mil) and the official Express Scripts TRICARE beneficiary site, or use the number printed on your benefit materials. 2026 copays cited here were verified against tricare.mil in January 2026.
Sources
- TRICARE — “Pharmacy Costs” and Pharmacy Program pages (tricare.mil) — 2026 copays verified January 2026; verify current
- Defense Health Agency / Military Health System — Pharmacy Program (health.mil) — verify current
- Express Scripts (TRICARE) — official beneficiary site (militaryrx.express-scripts.com) — verify current