Amitriptyline hydrochloride vs Tryptophan
National NHS prescribing compared (Prescription Cost Analysis)
Amitriptyline hydrochloride was dispensed 19,324.4× as often as Tryptophan in June 2026 — 1,410,679 items versus 73 in England.
1,410,679items
Amitriptyline hydrochloride · June 2026
NHSBSA Prescription Cost Analysis
73items
Tryptophan · June 2026
NHSBSA Prescription Cost Analysis
Figure 1. Amitriptyline hydrochloride versus Tryptophan: national items dispensed by month
▬ Amitriptyline hydrochloride · ╌ Tryptophan
Source: NHSBSA Prescription Cost Analysis, to June 2026
| Measure | Amitriptyline hydrochloride | Tryptophan |
|---|---|---|
| Items, June 2026 | 1,410,679 | 73 |
| Items, last 12 months | 16,629,971 | 854 |
| Net ingredient cost, June 2026 | £1,500,115 | £5,323 |
See the full profile for Amitriptyline hydrochloride or Tryptophan.