Participant safety restriction counseling

The manuals converge on clear participant counselling about post-dose safety restrictions, especially around driving, operating machinery, and avoiding dangerous activities while judgment or coordination may still be affected. Several sources also recommend arranging alternative transport, such as a ride, taxi, public transport, car service, or a caregiver, and many pair this with explicit reminders about remaining overnight or not leaving unsafely after dosing. They also align on reinforcing study-period restrictions that protect both safety and protocol integrity. Across the extracts, the manuals recommend limits on alcohol, nicotine, caffeine, recreational drugs, and other prohibited or non-approved substances, along with medication restrictions, washout or tapering requirements, fasting, and adherence to session-day or follow-up procedures. Some sources also emphasise explaining the rationale for these rules in a clear, non-punitive way and checking adherence before dosing or follow-up visits. The manuals differ mainly in emphasis and context. Some focus on residential supervision and facility rules, others on infusion-day transport and medical clearance, and others on broader lifestyle restrictions such as grapefruit, poppy seeds, strenuous exercise, birth control requirements, or support-person arrangements. A few extracts also add protocol-specific medication management, such as PI review for certain medicines or coordination with regular clinicians about pain management and respiratory risk, which is not present in all manuals.