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PharmaInsight

Chlortalidone vs Spironolactone

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

Spironolactone was dispensed 274.4× as often as Chlortalidone in March 2026 — 367,450 items versus 1,339 in England.

1,339items

Chlortalidone · March 2026

NHSBSA Prescription Cost Analysis

367,450items

Spironolactone · March 2026

NHSBSA Prescription Cost Analysis

Figure 1. Chlortalidone versus Spironolactone: national items dispensed by month

▬ Chlortalidone   ·   ╌ Spironolactone

Spironolactone 1,339

Source: NHSBSA Prescription Cost Analysis, to March 2026

Chlortalidone versus Spironolactone, March 2026
Measure Chlortalidone Spironolactone
Items, March 2026 1,339 367,450
Items, last 12 months 15,516 4,181,506
Net ingredient cost, March 2026 £41,695 £1,253,634

See the full profile for Chlortalidone or Spironolactone.