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PharmaInsight

Codeine phosphate vs Ammonium chloride/diphenhydramine hydrochloride

National NHS prescribing compared (Prescription Cost Analysis)
Data updated March 2026

Codeine phosphate was dispensed 2,171.7× as often as Ammonium chloride/diphenhydramine hydrochloride in March 2026 — 6,515 items versus 3 in England.

6,515items

Codeine phosphate · March 2026

NHSBSA Prescription Cost Analysis

3items

Ammonium chloride/diphenhydramine hydrochloride · March 2026

NHSBSA Prescription Cost Analysis

Figure 1. Codeine phosphate versus Ammonium chloride/diphenhydramine hydrochloride: national items dispensed by month

▬ Codeine phosphate   ·   ╌ Ammonium chloride/diphenhydramine hydrochloride

Ammonium chlorid… 6,515

Source: NHSBSA Prescription Cost Analysis, to March 2026

Codeine phosphate versus Ammonium chloride/diphenhydramine hydrochloride, March 2026
Measure Codeine phosphate Ammonium chloride/diphenhydramine hydrochloride
Items, March 2026 6,515 3
Items, last 12 months 73,779 6
Net ingredient cost, March 2026 £167,309 £7

See the full profile for Codeine phosphate or Ammonium chloride/diphenhydramine hydrochloride.