Colorado Prescription Drug Formularies change during the year, so it is always a good idea to confirm your medication before filling a prescription.
Each health plan uses a drug list, called an Rx prescription drug formulary. Use the links below to check if a medication is covered, what tier it falls in, and whether there are any rules like prior authorization or step therapy.
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Carrier formulary downloads
A formulary is a plan’s prescription drug list. Confirm the correct list for your plan and coverage year, including prior authorization, step therapy and quantity limits.
Anthem Blue Cross and Blue ShieldDocument: October 1, 2026Essential Five-Tier Drug List. Your plan may use tiers 1a/1b; check its benefit summary. BE flags a benefit exclusion that must be checked against your plan.
Download full formulary (PDF)
Colorado Access ChoiceDocument: 2027 file; internal update July 1, 2026Colorado Access Choice formulary. NC means not covered; EXC means a plan exclusion. Related brand names do not confirm brand coverage.
Download full formulary (PDF)
Elevate Health Plans by Denver HealthDocument: October 2026 (4Q2026)Formulary for Elevate Exchange, Colorado Option and Peak plans. Check listed requirements for the exact strength and form.
Download full formulary (PDF)
Kaiser PermanenteDocument: January 1, 2027Colorado Commercial Marketplace formulary. Generic, Brand and Specialty are the source labels, not numbered tiers or exact copays.
Download full formulary (PDF)Rocky Mountain Health Plans / UnitedHealthcareDocument: January 1, 2027Colorado Individual & Family 2027 Prescription Drug List. Its tier numbers do not necessarily mean the same cost as another carrier's.
Download full formulary (PDF)Select HealthDocument: Current RxCore Colorado list (PDF undated)RxCore Colorado formulary. Check your plan’s benefit summary for the cost associated with each tier.
Download full formulary (PDF)Tips when checking a medication
- Use the exact Rx drug name, including the generic name if you know it.
- Select the correct strength and form, such as tablet, capsule, or injection.
- Check the tier, since your copay or coinsurance depends on it.
- Look for notes about prior authorization, step therapy, or quantity limits.
- If a drug is not covered, ask your doctor about alternatives or a possible exception.