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Independent analysis of NHS open data
PharmaInsight

Hydroxychloroquine sulfate vs Leflunomide

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

Hydroxychloroquine sulfate was dispensed 6.5× as often as Leflunomide in May 2026 — 107,136 items versus 16,405 in England.

107,136items

Hydroxychloroquine sulfate · May 2026

NHSBSA Prescription Cost Analysis

16,405items

Leflunomide · May 2026

NHSBSA Prescription Cost Analysis

Figure 1. Hydroxychloroquine sulfate versus Leflunomide: national items dispensed by month

▬ Hydroxychloroquine sulfate   ·   ╌ Leflunomide

0 58k 115k Jan 2021 Dec 2021 Oct 2022 Aug 2023 Jun 2024 Apr 2025 May 2026 Leflunomide 107,136 Jan 2021: 100k Feb 2021: 93k Mar 2021: 105k Apr 2021: 102k May 2021: 97k Jun 2021: 104k Jul 2021: 104k Aug 2021: 99k Sep 2021: 103k Nov 2021: 103k Dec 2021: 108k Jan 2022: 101k Feb 2022: 94k Mar 2022: 106k Apr 2022: 100k May 2022: 105k Jun 2022: 102k Jul 2022: 102k Aug 2022: 104k Sep 2022: 103k Oct 2022: 102k Nov 2022: 103k Dec 2022: 105k Jan 2023: 103k Feb 2023: 95k Mar 2023: 107k Apr 2023: 98k May 2023: 102k Jun 2023: 106k Jul 2023: 105k Aug 2023: 105k Sep 2023: 103k Oct 2023: 105k Nov 2023: 106k Dec 2023: 106k Jan 2024: 107k Feb 2024: 101k Mar 2024: 103k Apr 2024: 107k May 2024: 109k Jun 2024: 102k Jul 2024: 111k Aug 2024: 106k Sep 2024: 104k Oct 2024: 110k Nov 2024: 106k Dec 2024: 109k Jan 2025: 111k Feb 2025: 99k Mar 2025: 105k Apr 2025: 106k May 2025: 110k Jun 2025: 107k Jul 2025: 114k Aug 2025: 105k Sep 2025: 110k Oct 2025: 113k Nov 2025: 104k Dec 2025: 115k Jan 2026: 110k Feb 2026: 100k Mar 2026: 110k Apr 2026: 110k May 2026: 107k

Source: NHSBSA Prescription Cost Analysis, to May 2026

Hydroxychloroquine sulfate versus Leflunomide, May 2026
Measure Hydroxychloroquine sulfate Leflunomide
Items, May 2026 107,136 16,405
Items, last 12 months 1,305,590 197,406
Net ingredient cost, May 2026 £426,654 £206,618

See the full profile for Hydroxychloroquine sulfate or Leflunomide.