Chapter 4

Safety, side effects and who shouldn't take part


Known risks, common side effects and the medical and psychiatric screening used in clinical research.

In progressLast updated September 26, 2026

This chapter is being written. Every chapter is reviewed against the published research before it goes live.

What this chapter will cover

  • Common short-term effects
  • Serious risks and contraindications
  • Psychiatric screening in trials
  • Drug interactions
  • Abuse potential and long-term use