Honest drug prices & Medicare plan facts. Straight from federal data.
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Promethazine: what pharmacies actually pay

Prices below are the National Average Drug Acquisition Cost (NADAC) — the federal government's weekly survey of what pharmacies actually pay their wholesalers, as of 07/22/2026. Your pharmacy's cash price includes their markup and dispensing cost, so it will be higher — but if it's many times this number, that's a signal to shop around.

Form & strengthPharmacy costUnitType
PROMETHAZINE 12.5 MG SUPPOS$2.10per tablet/unitGeneric
PROMETHAZINE 12.5 MG TABLET$0.05per tablet/unitGeneric
PROMETHAZINE 25 MG SUPPOSITORY$2.05per tablet/unitGeneric
PROMETHAZINE 25 MG TABLET$0.05per tablet/unitGeneric
PROMETHAZINE 25 MG/ML AMPUL$1.27per mLGeneric
PROMETHAZINE 25 MG/ML VIAL$1.76per mLGeneric
PROMETHAZINE 50 MG TABLET$0.08per tablet/unitGeneric
PROMETHAZINE 50 MG/ML AMPUL$2.34per mLGeneric
PROMETHAZINE 6.25 MG/5 ML SOLN$0.04per mLGeneric
PROMETHAZINE 6.25 MG/5 ML SYRP$0.04per mLGeneric

Rough math: a typical 30-day supply of one tablet/day equals 30× the per-unit cost.

This is pricing information, not medical advice. Talk to your doctor or pharmacist before changing any medication.

Which Medicare plans cover this drug?

Pick your state and county to see every plan there, filtered to this drug — with the tier, prior-authorization status, and estimated copay.

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