Paul McAllister, pharmacist and plant medicine practitioner specialising in psychedelic safety

Psychedelic Screening & Safety Consultation · Online

Know your real risks
before you explore

A pharmacist-led screening and safety consultation — reviewing your medications, interactions, and health, so any decision you make is an informed one.

Why screening matters

Powerful substances,
real risks

Safety depends entirely on context, preparation,
and individual factors. Screening is what reveals them.

Psychedelics can influence the brain, nervous system, and mental health in profound ways. Without proper screening, they can also carry serious risks — particularly if you are:

  • Taking antidepressants, benzodiazepines, antipsychotics, or other psychiatric medication
  • Managing a physical or mental health condition
  • Unsure about drug interactions or contraindications
  • Considering a retreat, psychedelic therapy, or self-exploration

Many people receive guidance from sources without clinical pharmacology expertise. That gap creates preventable risk.

What it is

A structured, professional
risk assessment

A psychedelic screening consultation is a thorough, individual assessment designed to evaluate your real level of safety — across four key areas.

Medication interactions

Review of how psychedelics may interact with SSRIs, SNRIs, MAOIs, antipsychotics, mood stabilisers, and other medications — including serotonin syndrome risk.

Mental health risks

Consideration of factors such as anxiety, trauma, bipolar disorder, and psychosis vulnerability that may raise risk or call for caution.

Physical health

Assessment of physical considerations including cardiovascular and neurological factors that may be relevant to safety.

Suitability & harm reduction

An honest view of your overall suitability, plus harm-reduction principles and preparation considerations to help you decide from clarity.

Clear boundaries

Exactly what this
is and isn't

This is a professional educational and screening service, focused on safety, risk awareness, and informed consent. Honesty about its limits is part of the value.

What this can provide

  • A professional psychedelic risk assessment
  • Insight into medication interactions and safety concerns
  • Education on set, setting, preparation, and integration principles
  • Guidance on reducing potential risks
  • Information on safe tapering considerations for psychiatric medication*
  • Support for informed, autonomous decision-making

What this does not provide

  • Provision of psychedelic substances
  • Facilitation or guidance of psychedelic experiences
  • Medical clearance or endorsement of psychedelic use
  • Prescribing or altering medication
  • Guarantees of safety or outcomes

*Any medication changes must always be managed with your prescribing clinician.

Why work with Paul

The bridge between
two worlds

I'm a qualified pharmacist with over a decade of clinical experience, specialising in psychiatric medication, drug interaction analysis, and trauma-informed care. I bring both pharmacological rigour and a genuine understanding of the human side of this work.

Traditional healthcare often lacks psychedelic knowledge.

Psychedelic spaces often lack pharmacological expertise.

This service sits in the middle — clinically trained, and educated in psychedelic pharmacology.

MPharm — Master's in Pharmacy · Registered in UK & Ireland 10+ years across mental health, addiction & clinical services Specialist focus in drug interactions & deprescribing Trauma-informed and nervous system–aware approach
Paul McAllister, pharmacist with psychedelic pharmacology and plant medicine expertise

A balanced, evidence-based view

Not happy pills.
Not a quick fix.

Psychedelics are increasingly recognised in research as promising tools in mental health. But they are not safe for everyone, and they don't create happiness or bypass emotional pain. Depending on the person and the context, they may open pathways for healing — or they may intensify distress, trigger instability, or interact dangerously with medication.

Screening is what determines the difference between a calculated step and an avoidable risk.

This is a space for honesty over reassurance. If you're looking for someone to simply approve a decision you've already made, this isn't that service. If you want real clarity — including hearing "this may not be right for you" — then you're in the right place.

The consultation

Booking your screening

Continued support

£75

Follow-up · 30 min

  • For continued support after your screening
  • Deeper discussion of specific concerns
  • Reviewing next steps and considerations
  • Available as and when you need it
Book a follow-up

Every consultation is treated with strict confidentiality and professional discretion. Medication changes are always made in consultation with your prescribing clinician.

Common questions

Things you might
want to know

  • I'll give you a clear, professional risk assessment based on your medications, health, and context — which may flag elevated risk, reduced effectiveness, contraindications, or relative safety considerations. The final decision is always yours.
  • I provide education on harm-reduction principles — set and setting, preparation, nervous system considerations, and integration awareness. I do not provide step-by-step instructions, dosing protocols, or facilitation guidance.
  • Not necessarily — and stopping medication incorrectly can increase risk, destabilise your mental health, or lead to withdrawal complications. I can provide education around tapering considerations, but any medication changes must be overseen by your prescribing clinician.
  • Yes. Everything shared is treated with strict confidentiality and professional discretion.
  • Then that is part of the value of this service. Clarity is protection. Hearing that something may not be safe can prevent harm, save you from a destabilising experience, and help you explore more appropriate pathways.
  • Most facilitators don't have pharmacological training and can't assess drug interactions or contraindications. Many healthcare providers don't understand psychedelics. I sit in the middle — clinically trained in medications, educated in psychedelic pharmacology, and experienced in nervous system work.
  • Yes. This is a big and often vulnerable decision. Most people who come to this service are unsure, curious, and wanting clarity while feeling a little overwhelmed. That's exactly what this space is for.

Clarity, honesty, responsibility

Explore this
properly

You don't need to rush into anything. But you don't need to navigate it blindly either. If you're going to explore this, understand your risks first.

Important

This is a professional educational and screening service only. It does not provide psychedelic substances, facilitation, medical clearance, or prescribing. It does not endorse or encourage illegal activity. All medication decisions must be made with your GP, psychiatrist, or prescribing clinician.