Histamine-1 Receptor Antagonist
An Established Pharmacologic Class (EPC) in the FDA NDC Directory: the class FDA records for a product in its PHARM_CLASSES field.
In the NADAC file of 2026-10-14
167 products in the NADAC file of 2026-10-14 have an NDC that FDA lists in this class, covering 53 nonproprietary names as FDA writes them. 14 of them have a Medicare figure on OpenBill.
Being in one class means FDA describes the drugs’ pharmacology the same way. It does not mean one can replace another; that is a question for your prescriber.
Prices per unit: CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · as of 2026-10-14 · retrieved 2026-10-17. Classes: FDA NDC Directory · ndctext.zip · as of 2026-10-16.
The products, with what pharmacies pay per unit
- 24HR ALLERGY(LEVOCETIRZN) 5 MG
- ACETAMINOPHEN PM CAPLET
- ADVANCED EYE RELIEF 0.2% DROPS
- ALL DAY ALLERGY 10 MG TABLET
- ALL DAY ALLERGY-D 5-120 MG TAB
- ALL DAY ALLERGY-D TABLET
- ALLER-CHLOR 4 MG TABLET
- ALLER-G-TIME 25 MG CAPLET
- ALLERGY (DIPHEN) 25 MG CAPSULE
- ALLERGY (DIPHEN) 25 MG MINITAB
- ALLERGY 25 MG TABLET
- ALLERGY 4 MG TABLET
- ALLERGY MULTI-SYMPTOM CAPLET
- ALLERGY RELIEF 12.5 MG/5 ML
- ALLERGY RELIEF 180 MG TABLET
- ALLERGY RELIEF 25 MG CAPSULE
- ALLERGY RELIEF 25 MG SOFTGEL
- ALLERGY RELIEF 25 MG TABLET
- ALLERGY RELIEF 4 MG TABLET
- ALLERGY RELIEF-D TABLET
- ALLERGY RLF (CETRZN) 10 MG TAB
- ALLERGY RLF (CETRZN) 5 MG TAB
- ALLERGY RLF (FEXO) 60 MG TAB
- ALLERGY RLF-DECONG ER 5-120 MG
- ALLERGY-TIME 4 MG TABLET
- ANTI-ITCH 2%-0.1% CREAM
- AZELASTIN-FLUTIC 137-50 MCG SPR
- AZELASTINE 0.1% (137 MCG) SPRY
- AZELASTINE HCL 0.05% DROPS
- BANOPHEN 25 MG CAPSULE
- BANOPHEN 25 MG TABLET
- BANOPHEN 50 MG CAPSULE
- BANOPHEN ANTI-ITCH 2% CREAM
- BEPOTASTINE 1.5% EYE DROP
- BEPREVE 1.5% EYE DROPS
- CARBINOXAMINE ER 4 MG/5 ML SUSP
- CARBINOXAMINE MALEATE 4 MG TAB
- CETIRIZINE HCL 1 MG/ML SOLN
- CETIRIZINE HCL 1 MG/ML SYRUP
- CETIRIZINE HCL 10 MG CHEW TAB
- CETIRIZINE HCL 10 MG TABLET
- CETIRIZINE HCL 5 MG CHEW TAB
- CETIRIZINE HCL 5 MG TABLET
- CETIRIZINE-PSE ER 5-120 MG TAB
- CHILD ALL DAY ALLERGY 1 MG/ML
- CHILD ALLERGY (FEXO) 30 MG/5 ML
- CHILD ALLERGY RELIEF 1 MG/ML
- CHILD ALLERGY RLF 12.5 MG/5 ML
- CHILD CETIRIZINE HCL 1 MG/ML
- CHLD ALLRGY RLF 12.5 MG CHEW TB
- CLARINEX 5 MG TABLET
- CLARINEX-D 12 HR 2.5-120 MG TB
- COUGH-COLD HBP TABLET
- COUGH-COLD TABLET
- DESLORATADINE 5 MG ODT
- DESLORATADINE 5 MG TABLET
- DIMETANE 25 MG SOFTGEL
- DIMETANE 50 MG SOFTGEL
- DIPHEDRYL 12.5 MG/5 ML ELIXIR
- DIPHENHYDRAMINE 12.5 MG/5 ML
- DIPHENHYDRAMINE 25 MG CAPSULE
- DIPHENHYDRAMINE 25 MG TABLET
- DIPHENHYDRAMINE 50 MG CAPSULE
- DIPHENHYDRAMINE 50 MG/ML VIAL
- DRIMINATE 50 MG TABLET
- DYMISTA NASAL SPRAY
- ED A-HIST DM TABLET
- ED-A-HIST 4 MG-10 MG TABLET
- ED-A-HIST DM LIQUID
- FEXOFENADINE HCL 180 MG TABLET
- FEXOFENADINE HCL 60 MG TABLET
- FEXOFENADINE-PSE ER 60-120 TAB
- FLU HBP 325-2-10 MG CAPLET
- FT AD ALLERGY (CETRZN) 10 MG TB
- FT ALL DAY ALLERGY-D 5-120 MG TB
- FT ALL DY ALLERGY-D 5-120 MG TB
- FT ALLERGY (CETRZN) 10 MG TAB
- FT ALLERGY (CHLORPHEN) 4 MG TB
- FT ALLERGY (DIPHEN) 25 MG CAP
- FT ALLERGY (DIPHEN) 25 MG TAB
- FT ALLERGY (FEXO) 180 MG TAB
- FT ALLERGY MULTI-SYMPTOM CPLT
- FT ANTI-ITCH 2%-0.1% CREAM
- FT CHILD ALL DAY ALLER 1 MG/ML
- FT CHILD ALLERGY 12.5 MG/5 ML
- FT CHILD ALLERGY RLF 1 MG/ML
- FT EYE ALLERGY ITCH RLF 0.2%
- FT EYE ALLERGY ITCH-RED 0.1%
- FT IBUPROFEN PM 200-38 MG CPLT
- FT MOTION SICKNESS 50 MG TAB
- FT NIGHTTIME SLEEP 25 MG CPLT
- FT PAIN RELIEVER PM 500-25 MG GELTAB
- FT SLEEP AID 50 MG SOFTGEL
- GNP ALL DAY ALLERGY 10 MG SFGL
- GNP ALLERGY MULTI-SYMPTOM CPLT
- GNP ALLERGY RELIEF 25 MG SFGL
- GNP ALLERGY RELIEF 25 MG TAB
- GNP ALLERGY RELIEF 4 MG TABLET
- GNP ALLERGY RELIEF 5 MG TABLET
- GNP ALLERGY RELIEF 50 MG/20 ML
- GNP ANTI-ITCH 2%-0.1% CREAM
- GNP CHILD ALLERGY 12.5 MG CHEW
- GNP CHILD ALLERGY 12.5 MG/5 ML
- GNP COUGH-COLD HBP TABLET
- GNP FEXOFENADINE HCL 180 MG TB
- GNP FEXOFENADINE-PSE ER 60-120
- GNP IBUPROFEN PM CAPLET
- GNP ITCH RELIEF 2%-0.1% SPRAY
- GNP NIGHTTIME SLEEP AID 50 MG
- GNP OLOPATADINE 0.1% EYE DROPS
- GNP OLOPATADINE 0.2% EYE DROP
- GNP PM PAIN RLF 25-500 MG CPLT
- GNP SLEEP AID 25 MG CAPLET
- GNP SLEEP AID 50 MG/30 ML LIQ
- GS ALL DAY ALLERGY 10 MG TAB
- GS ALL DAY ALLERGY-D TABLET
- GS ALLER-EASE 180 MG TABLET
- GS ALLERGY (DIPHEN) 25 MG TAB
- GS CHILD ALL DAY ALLER 1 MG/ML
- GS CHILD ALLERGY 12.5 MG/5 ML
- GS IBUPROFEN PM CAPLET
- GS ITCH RELIEF 2%-0.1% CREAM
- GS NIGHTTIME SLEEP AID 25 MG
- GS PAIN RLF PM 25-500 MG CPLT
- GS SLEEP TIME 50 MG/30 ML LIQ
- HYDROCODONE-CHLORPHEN ER SUSP
- IBUPROFEN PM 200-38 MG CAPLET
- ITCH RELIEF 2%-0.1% CREAM
- ITCH RELIEF 2%-0.1% SPRAY
- KARBINAL ER 4 MG/5 ML SUSP
- LASTACAFT ONCE DAILY 0.25% DRP
- LEVOCETIRIZINE 2.5 MG/5 ML SOL
- LEVOCETIRIZINE 5 MG TABLET
- M-DRYL 12.5 MG/5 ML SOLUTION
- MOTION SICKNESS 50 MG TABLET
- NOHIST-DM LIQUID
- OLOPATADINE 665 MCG NASAL SPRY
- OLOPATADINE HCL 0.1% EYE DROP
- OLOPATADINE HCL 0.1% EYE DROPS
- OLOPATADINE HCL 0.2% EYE DROP
- PATADAY ONCE DAILY 0.2% DROPS
- PATADAY ONCE DAILY 0.7% DROPS
- PATADAY TWICE DAILY 0.1% DROPS
- QC ACETAMINOPHEN PM GELCAP
- QC ALLERGY (CETRZN) 10 MG TAB
- QC ALLERGY (CHLORPHEN) 4 MG TB
- QC ALLERGY (DIPHEN) 25 MG CAP
- QC ALLERGY (DIPHEN) 25 MG SFGL
- QC ALLERGY (DIPHEN) 25 MG TAB
- QC ALLERGY (FEXO) 180 MG TAB
- QC ALLERGY MULTI-SYMPTOM CPLT
- QC ALLERGY RLF (FEXO) 60 MG TB
- QC COUGH-COLD HBP TABLET
- QC EZZ NITE SLEEP 50 MG/30 ML
- QC MOTION SICKNESS 50 MG TAB
- QC NIGHTTIME SLEEP 25 MG TAB
- QC PAIN RLF PM 25-500 MG CAPLET
- QC PAIN RLF PM 25-500 MG GELTAB
- QC REST SIMPLY 25 MG CAPLET
- QC SLEEP AID 50 MG SOFTGEL
- RYALTRIS 665-25 MCG SPRAY
- SLEEP AID 25 MG SOFTGEL
- SLEEP AID 50 MG SOFTGEL
- SLEEP AID 50 MG/30 ML LIQUID
- SLEEP TABS 25 MG TABLET
- SUDOGEST COLD AND ALLERGY TAB
- ZERVIATE 0.24% EYE DROP
How to read these prices
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- A price is a range to expect, never a quote.
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- Disclaimer footer: not medical advice, no warranty, other people's data can be wrong.