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Independent analysis of NHS open data
PharmaInsight

Venlafaxine vs Mirtazapine

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

Mirtazapine was dispensed 2.1× as often as Venlafaxine in May 2026 — 1,137,415 items versus 532,507 in England.

532,507items

Venlafaxine · May 2026

NHSBSA Prescription Cost Analysis

1,137,415items

Mirtazapine · May 2026

NHSBSA Prescription Cost Analysis

Figure 1. Venlafaxine versus Mirtazapine: national items dispensed by month

▬ Venlafaxine   ·   ╌ Mirtazapine

0 609k 1.2m Jan 2021 Nov 2021 Sep 2022 Jul 2023 May 2024 Mar 2025 May 2026 Mirtazapine 532,507 Jan 2021: 424k Feb 2021: 401k Mar 2021: 447k Apr 2021: 435k May 2021: 416k Jun 2021: 444k Jul 2021: 445k Aug 2021: 427k Sep 2021: 445k Oct 2021: 428k Nov 2021: 445k Dec 2021: 468k Jan 2022: 443k Feb 2022: 415k Mar 2022: 470k Apr 2022: 444k May 2022: 462k Jun 2022: 452k Jul 2022: 449k Aug 2022: 466k Sep 2022: 460k Oct 2022: 458k Nov 2022: 470k Dec 2022: 469k Jan 2023: 469k Feb 2023: 433k Mar 2023: 497k Apr 2023: 447k May 2023: 480k Jun 2023: 488k Jul 2023: 477k Aug 2023: 490k Sep 2023: 478k Oct 2023: 489k Nov 2023: 494k Dec 2023: 491k Jan 2024: 505k Feb 2024: 474k Mar 2024: 484k Apr 2024: 503k May 2024: 518k Jun 2024: 483k Jul 2024: 527k Aug 2024: 508k Sep 2024: 498k Oct 2024: 530k Nov 2024: 507k Dec 2024: 523k Jan 2025: 536k Feb 2025: 481k Mar 2025: 510k Apr 2025: 515k May 2025: 533k Jun 2025: 521k Jul 2025: 556k Aug 2025: 515k Sep 2025: 540k Oct 2025: 558k Nov 2025: 514k Dec 2025: 569k Jan 2026: 548k Feb 2026: 505k Mar 2026: 554k Apr 2026: 547k May 2026: 533k

Source: NHSBSA Prescription Cost Analysis, to May 2026

Venlafaxine versus Mirtazapine, May 2026
Measure Venlafaxine Mirtazapine
Items, May 2026 532,507 1,137,415
Items, last 12 months 6,461,429 13,842,931
Net ingredient cost, May 2026 £5,192,832 £1,218,242

See the full profile for Venlafaxine or Mirtazapine.