| 6 Products | May 2025 | May 2026 | Change |
| Benadryl Allergy Relief Capsules () | £5.15 | £5.51 | + £0.36 7% increase |
| | £3.00 | £5.98 | + £2.98 99.3% increase |
| | £6.00 | £6.60 | + £0.60 39.8% increase |
| | £6.60 | £6.60 | £0.00 22.9% increase |
| | £5.70 | £6.60 | + £0.90 21% increase |
| | £2.00 | £2.00 | £0.00 19.3% increase |
| | £6.90 | £6.75 | - £0.15 14.5% decrease |
| | £6.60 | £6.60 | £0.00 11.8% increase |
| | £5.60 | £4.47 | - £1.13 7.5% decrease |
| | £3.99 | £3.99 | £0.00 7% increase |
| Benadryl One a Day Allergy Relief Tablets (10mg) | £6.39 | £6.47 | + £0.08 1.3% increase |
| | £6.50 | £6.50 | £0.00 No change |
| | £6.50 | £6.50 | £0.00 No change |
| | £6.50 | £6.50 | £0.00 No change |
| | £6.50 | £6.50 | £0.00 No change |
| | £6.80 | £6.80 | £0.00 No change |
| | £6.50 | £6.50 | £0.00 No change |
| | £5.40 | £6.00 | + £0.60 1.3% increase |
| Benadryl Allergy Relief Capsules 24 () | £10.63 | £10.31 | - £0.32 -3% decrease |
| | £10.50 | £10.50 | £0.00 No change |
| | £10.75 | £10.75 | £0.00 No change |
| | £10.75 | £10.75 | £0.00 No change |
| | £10.50 | £10.75 | + £0.25 0.6% increase |
| | £11.30 | £11.30 | £0.00 0.5% increase |
| | £11.00 | £11.00 | £0.00 0.4% increase |
| | £9.59 | £7.10 | - £2.49 -3% decrease |
| Benadryl Allergy One-a-day Relief Tablets 30 (10mg) | £10.19 | £10.93 | + £0.74 7.3% increase |
| | £10.00 | £9.98 | - £0.02 -0.2% decrease |
| | £11.00 | £11.00 | £0.00 -0.1% increase |
| | £11.00 | £11.00 | £0.00 -0.1% increase |
| | £10.00 | £11.00 | + £1.00 2.4% increase |
| | £11.55 | £11.55 | £0.00 1.9% increase |
| | £11.00 | £11.00 | £0.00 1.5% increase |
| | £6.75 | £10.99 | + £4.24 7.3% increase |
| Benadryl Allergy Relief Capsules () | £10.00 | £10.00 | £0.00 No change |
| | £10.00 | £10.00 | £0.00 No change |
| Benadryl Allergy Relief 24 Caps () | £9.00 | £9.00 | £0.00 No change |
| | £9.00 | £9.00 | £0.00 No change |
