Drugs · acquisition-cost intelligence
promethazine hydrochloride
· ingredient promethazineAntihistamines for topical use· PROMETHAZINE HYDROCHLORIDE 6.25 mg/5mL
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
$0.04156
NADAC — pharmacy acquisition cost, not a retail/cash price
Acquisition-cost history
Weekly NADAC per ML — the trend nobody else shows. 6 weeks.
2025-12-172026-05-20
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 | $0.04766 | +$0.00610 |
| PROMETHAZINE | $0.04766 | +$0.00610 |
| PHENERGAN | $1.75 | +$1.71 |
| PROMETHEGAN | $1.91 | +$1.86 |
| PROMETHAZINE HCI | $2.34 | +$2.30 |
| PROMETHEGAN | $24.54 | +$24.50 |
Medicare Part D coverage · CY2026
On 218 plan formularies · typical tier 1
Prior auth 57% · Step therapy 0% · Quantity limit 0% of formularies
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.