First injection | Maintenance of hyperalgesia induced by the second acid injection on | ||
---|---|---|---|
Day 1 | Day 2 | Day 5 | |
Acid with APETx2 | 7 days (20 pmole) | 6 days (20 pmole) | 4 hr (20 pmole) |
3 days (200 pmole) | |||
Acid with capsazepine | 9 days | 9 days | 7 days |
Acid with vehicle | >12 days | >12 days | >12 days |