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PharmaInsight

Montelukast vs Zafirlukast

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

Montelukast was dispensed 208,118.5× as often as Zafirlukast in March 2026 — 416,237 items versus 2 in England.

416,237items

Montelukast · March 2026

NHSBSA Prescription Cost Analysis

2items

Zafirlukast · March 2026

NHSBSA Prescription Cost Analysis

Figure 1. Montelukast versus Zafirlukast: national items dispensed by month

▬ Montelukast   ·   ╌ Zafirlukast

Zafirlukast 416,237

Source: NHSBSA Prescription Cost Analysis, to March 2026

Montelukast versus Zafirlukast, March 2026
Measure Montelukast Zafirlukast
Items, March 2026 416,237 2
Items, last 12 months 4,907,834 21
Net ingredient cost, March 2026 £386,754 £44

See the full profile for Montelukast or Zafirlukast.