PAEAN evidence guide · Written and reviewed by registered UK practitioners
Is Herbal Medicine Safe? Your Complete Guide
The short answer is yes — when prescribed by a qualified practitioner, herbal medicine has an excellent safety record. This guide explains the important safety considerations, how to use herbal medicine responsibly, and what to look for in a qualified herbalist.
01 · The practice
A 5,000-year-old practice meeting modern evidence.
Herbal medicine is safe in the hands of a UK-registered practitioner — adverse event rates from NIMH-registered herbalists run well below those for over-the-counter painkillers. Risk concentrates in three areas: self-prescribing without screening, buying from unregulated online suppliers, and combining herbs with prescription drugs without practitioner oversight. All three are avoidable.
The short answer is yes — when prescribed by a qualified practitioner, herbal medicine has an excellent safety record. This guide explains the important safety considerations, how to use herbal medicine responsibly, and what to look for in a qualified herbalist.
“Herbal medicine has been practiced for over 5,000 years across every continent.”
WHO Traditional Medicine Strategy 2014-2023
02 · How it works
How herbal medicine actually works.
01
Tailored protocol
Each formula is matched to the individual, not just the diagnosis.
02
Root-cause approach
The aim is to address the underlying cause, not just suppress symptoms.
03
Evidence-informed
Where good clinical evidence exists, it guides the protocol.
04
Coordinated care
Treatment is coordinated with any conventional care you receive.
By the numbers
The numbers behind herbal practice.
5,000
Years of documented herbal practice
80%
Of the world uses herbal medicine (WHO)
3-4
Years NIMH degree training
25%
Of modern drugs derived from plants
03 · The herbs at work
A handful of well-evidenced herbs.
Demulcent
Marshmallow root
Gentle, food-grade mucilage — one of the safer herbs in the pharmacopoeia.
Nervine
Chamomile
Long-established safety record across all age groups.
Anti-inflammatory
Turmeric
Generally safe with caveats — avoid high doses with anticoagulants.
Nervine
St John’s Wort
Effective but interacts with many drugs — never self-prescribe alongside SSRIs, contraceptives or blood thinners.
04 · What to expect
How a course of treatment unfolds in our practice.
01
Discovery call
A free 15-minute video call to see whether herbal medicine is right for your situation.
02
Initial consultation
60-90 minutes with a registered medical herbalist taking your full health history.
03
Tailored protocol
A bespoke formula combining 4-8 herbs in specific ratios — prepared and sent to your door.
04
Follow-up & review
Progress monitored every 3-4 weeks; the protocol adjusts as your health evolves.
Safety note
Herbal medicine is a regulated discipline in the UK. Always work with a registered practitioner — NIMH (medical herbalists), ARH, RCHM, BAcC (acupuncture) or the Faculty of Homeopathy — rather than self-treating. Tell your GP about any herbal treatment, especially if you take SSRIs, anticoagulants, contraceptives, immunosuppressants or thyroid medication.
05 · Frequently asked
Common questions about herbal medicine.
Are herbal medicines regulated in the UK?
Herbal medicines sold to the public are regulated by the MHRA under the Traditional Herbal Registration (THR) scheme. Practitioners are regulated by the NIMH.
Can I take herbs during pregnancy?
Some herbs are safe in pregnancy; many are contraindicated. Always consult a qualified herbalist before taking any herbs when pregnant.
Are herbs safe for children?
Many herbs are safe for children when appropriately dosed. Our paediatric herbalists have specialist training in safe paediatric prescribing.
What if I have a bad reaction?
Stop the herbs and contact your herbalist immediately. Adverse reactions to professionally prescribed herbal medicine are rare but should be reported.
Curious whether a herbalist could help with your situation?
A free 15-minute discovery call is the no-pressure way to find out.