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Lubiprostone 24 ug/1 Medicare Part D Coverage

Dosage form
CAPSULE, GELATIN COATED
Route
ORAL
75%
of Medicare Part D plans
cover Lubiprostone
4,142 of 5,530 plans
3.0
Avg. formulary tier
$15.00
Median 30-day copay
$0.00–$30.00
Copay range

Formulary Tier Distribution

How Medicare Part D plans classify Lubiprostone. Lower tiers = lower copays.

Tier 1 - Preferred Generic 4%
148 plans • avg $0.00/mo
Tier 2 - Generic 11%
458 plans • avg $1.60/mo
Tier 3 - Preferred Brand 64%
2,653 plans • avg $7.41/mo
Tier 4 - Non-Preferred Drug 21%
883 plans • avg $32.87/mo

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Lubiprostone Medicare Coverage by State

Coverage rates and average costs vary significantly by state. Click a state to see the specific plans available there.

Frequently Asked Questions about Lubiprostone

75% of Medicare Part D plans cover Lubiprostone. It is most commonly placed on Tier 3. Coverage varies by plan and geographic area.

The median 30-day copay for Lubiprostone on Medicare Part D is $15.00 at a preferred pharmacy. Costs range from $0.00 to $30.00 depending on the plan.

Lubiprostone is placed on Tier 3 by most Medicare Part D plans. Lower tier numbers generally mean lower copays.

0% of plans require prior authorization for Lubiprostone. Prior authorization means your doctor must confirm the drug is medically necessary before the plan will cover it.

Coverage statistics based on CMS formulary data for plan year 2026. Data updated regularly. Methodology →