Codeine phosphate vs Diamorphine hydrochloride (Systemic)

National NHS prescribing compared (Prescription Cost Analysis)

Data updated March 2026

Codeine phosphate was dispensed 3,309.6× as often as Diamorphine hydrochloride (Systemic) in March 2026 — 499,752 items versus 151 in England.

499,752items

Codeine phosphate · March 2026

NHSBSA Prescription Cost Analysis

151items

Diamorphine hydrochloride (Systemic) · March 2026

NHSBSA Prescription Cost Analysis

Figure 1. Codeine phosphate versus Diamorphine hydrochloride (Systemic): national items dispensed by month

▬ Codeine phosphate · ╌ Diamorphine hydrochloride (Systemic)

Source: NHSBSA Prescription Cost Analysis, to March 2026

Codeine phosphate versus Diamorphine hydrochloride (Systemic), March 2026
Measure	Codeine phosphate	Diamorphine hydrochloride (Systemic)
Items, March 2026	499,752	151
Items, last 12 months	5,659,640	4,030
Net ingredient cost, March 2026	£1,194,026	£25,254