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Independent analysis of NHS open data
PharmaInsight

Orlistat vs Naltrexone/bupropion

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

Orlistat was dispensed 6,536.7× as often as Naltrexone/bupropion in May 2026 — 45,757 items versus 7 in England.

45,757items

Orlistat · May 2026

NHSBSA Prescription Cost Analysis

7items

Naltrexone/bupropion · May 2026

NHSBSA Prescription Cost Analysis

Figure 1. Orlistat versus Naltrexone/bupropion: national items dispensed by month

▬ Orlistat   ·   ╌ Naltrexone/bupropion

0 27k 53k Jan 2021 Nov 2021 Sep 2022 Jul 2023 May 2024 Mar 2025 May 2026 Naltrexone/bupro… 45,757 Jan 2021: 24k Feb 2021: 24k Mar 2021: 29k Apr 2021: 28k May 2021: 27k Jun 2021: 29k Jul 2021: 30k Aug 2021: 27k Sep 2021: 28k Oct 2021: 26k Nov 2021: 27k Dec 2021: 25k Jan 2022: 26k Feb 2022: 26k Mar 2022: 31k Apr 2022: 29k May 2022: 32k Jun 2022: 32k Jul 2022: 32k Aug 2022: 32k Sep 2022: 32k Oct 2022: 30k Nov 2022: 31k Dec 2022: 27k Jan 2023: 30k Feb 2023: 28k Mar 2023: 35k Apr 2023: 32k May 2023: 36k Jun 2023: 40k Jul 2023: 40k Aug 2023: 40k Sep 2023: 40k Oct 2023: 39k Nov 2023: 39k Dec 2023: 35k Jan 2024: 38k Feb 2024: 38k Mar 2024: 40k Apr 2024: 42k May 2024: 45k Jun 2024: 44k Jul 2024: 48k Aug 2024: 46k Sep 2024: 45k Oct 2024: 46k Nov 2024: 44k Dec 2024: 41k Jan 2025: 45k Feb 2025: 41k Mar 2025: 46k Apr 2025: 46k May 2025: 50k Jun 2025: 50k Jul 2025: 53k Aug 2025: 47k Sep 2025: 49k Oct 2025: 48k Nov 2025: 43k Dec 2025: 44k Jan 2026: 44k Feb 2026: 41k Mar 2026: 46k Apr 2026: 47k May 2026: 46k

Source: NHSBSA Prescription Cost Analysis, to May 2026

Orlistat versus Naltrexone/bupropion, May 2026
Measure Orlistat Naltrexone/bupropion
Items, May 2026 45,757 7
Items, last 12 months 558,111 52
Net ingredient cost, May 2026 £702,645 £767

See the full profile for Orlistat or Naltrexone/bupropion.