Drugs · acquisition-cost intelligence
PHENERGAN
PROMETHAZINE HCI· ingredient promethazineAntihistamines for topical use· PROMETHAZINE HYDROCHLORIDE 25 mg/mL; PROMETHAZINE HYDROCHLORIDE 50 mg/mL
What this is. Acquisition-cost intelligence for pharmacy & clinic buyers — the historical trend, generic-equivalent costs, and Part D posture. NADAC is a pharmacy acquisition cost (the national average pharmacies pay), not a retail or cash price — for consumer cash prices use GoodRx/your plan.
Acquisition benchmark · NADAC per ML
$1.75
NADAC — pharmacy acquisition cost, not a retail/cash price
Acquisition-cost history
Weekly NADAC per ML — the trend nobody else shows. 7 weeks.
2025-09-172026-05-20
Same-ingredient options by acquisition cost
Other promethazine products, cheapest acquisition cost first. Per ML — confirm strength/form equivalence before switching.
| Product | NADAC / ML | vs this |
|---|---|---|
| promethazine hydrochloride | $0.04156 | −$1.71 |
| promethazine hydrochloride | $0.04766 | −$1.71 |
| PROMETHAZINE | $0.04766 | −$1.71 |
| PROMETHEGAN | $1.91 | +$0.15170 |
| PROMETHAZINE HCI | $2.34 | +$0.58540 |
| PROMETHEGAN | $24.54 | +$22.79 |
Sources: CMS NADAC (pharmacy acquisition cost), FDA NDC + RxNorm (identity), RxClass (therapeutic class), CMS Medicare Part D formulary (coverage). Observed reference data for professional buyers — not a retail/cash price, not pricing or medical advice. Verify before purchasing or substituting.