Table 2. Frequency of participants’ reported adverse physical effects (n = 8,216).
| Total sample (8,216) | Single ayahuasca use participants (598) | |
|---|---|---|
| n % | n (%) | |
| Adverse physical effect 1 , 2 | 5,742 (69.9) | 334 (55.9) |
| General symptom adverse effect 1 , 3 | 5,603 (68.2) | 321 (53.7) |
| Vomiting/nausea | 5,097 (62.0) | 281 (47.0) |
| Headache | 1,460 (17.8) | 57 (9.5) |
| Abdominal pain | 1,052 (12.8) | 31 (5.2) |
| Breathing difficulties | 599 (7.3) | 33 (5.5) |
| Chest pains | 384 (4.7) | 14 (2.3) |
| Arthromyalgical adverse effect 1 , 4 | 883 (10.7) | 39 (6.5) |
| Aching muscles | 617 (7.5) | 29 (4.8) |
| Coughing/wheezing | 273 (3.3) | 5 (0.8) |
| Stiff/swollen joints | 182 (2.2) | 12 (2.0) |
| Neurological adverse effect 1 , 5 | 416 (5.1) | 20 (3.3) |
| Fainting | 335 (4.1) | 13 (2.2) |
| Fits or seizures | 106 (1.3) | 7 (1.2) |
1 Reported presence of some of the adverse physical effects studied
2 adverse physical effects range (0–10) and median (1.0)
3 adverse psychophisical effects range (0–5) and median (1.0)
4 adverse arthromyalgic effects range (0–3) and median (0.0)
5 adverse neurological effects range (0–2) and median (0.0).