Adverse effects and side-effect management

The manuals converge on active safety monitoring as a core part of psychedelic and ketamine treatment. Across ayahuasca, LSD, psilocybin, ketamine, ibogaine, and mescaline protocols, the sources describe systematic observation, documentation of adverse events, and attention to both physical and psychological reactions, including nausea, vomiting, anxiety, agitation, blood pressure changes, and other emergent safety concerns. They also converge on the need to distinguish expected, usually tolerable effects from reactions that may require escalation. Several sources mention supportive responses such as reassurance, comfort measures, post-session monitoring, and rescue medication pathways, while ketamine sources add clearer emergency thresholds for sedation, hypoxia, airway problems, or hypertensive emergency. Ayahuasca sources place particular emphasis on emesis management, while ketamine sources place more emphasis on cardiovascular, respiratory, and behavioural risk. Sources differ mainly in the kinds of adverse effects they foreground and the level of specificity in response. Some manuals focus on vomiting and comfort measures, others on structured side-effect surveillance across multiple follow-up points, and others on rare but serious complications such as laryngospasm, aspiration risk, arrhythmia, or inability to arouse. A few extracts also note specific tools or pathways, such as formal side-effect scales, rescue medication decisions, or medical supervision periods, whereas other sources simply stress vigilant observation and documentation.