Table Herbal Medicines - A brief summary of present evidence

Common Name
Botanical Name
Traditional Use RCT # Result as compared to placebo Adverse Effects Ref.
Chamomile, German
Chamomilia recutita
Tonic 0 Allergy 8 , 11
Mouthwash, oral mucositis 1 =
Devils Claw
Harpagophytum procumbens
Antirheumatic (Low back pain) 1 = 12
Echinacea
Echinacea purpurea
Immune stimulant (upper respiratory infections) 2 ? Allergy 8 , 13 , 14
Evening Primrose
Oenothera biennis
Atopic dermatitis 5 2⬆, 3 = 1519
Rheumatoid arthritis 3 ? 2022
Psoriatic arthritis 1 = 23
Premenstrual syndrome 2 = 24 , 25
Menopausal flushing 1 = 26
Obesity 1 = 27
Ulcerative colitis 1 = 28
Hyperactivity 2 = 29 , 30
Raynaud’s syndrome 1 = 31
Sjögren’s syndrome 1 = 32
Psoriasis 2 = 23 , 33
Feverfew
Tanacetum parthenium
Migraine 2 Allergy 34 , 35
Rheumatoid arthritis 1 = 36
Garlic
Allium sativum
BP. Lowering 7 ? Halitosis 37
Cholesterol lowering 17 ? 3840
Ginger
Zingiber officinale
Seasickness 1 = 41
Hyperemesis gravidarum 1 42
Post - op N/V 3 2⬆, 1 = 4345
EGb 761
Ginkgo biloba
Dementia progression 5 Bleeding 9 , 4650
Tinnitus 2 1⬆, 1 = 51
American Ginseng
P. quinquefolium
Exercise performance 1 = 54
Korean Ginseng (G115 ® )
Panax Ginseng
Exercise performance 2 = 52 , 53
Psychomotor performance 1 = 57
Flu Vaccine Immun. Resp. 1 56
Siberian Ginseng
Eleutherococcus senticossus
Exercise performance 1 = 41
Saint John’s Wort
Hypericum perforatum
Antidepressant 2 Skin photosensitivity 58 , 59
Saw Palmetto (Pemixon ® )
Serenoa repens
Prostatic hyperplasia 2 60 , 61
Letter 19
Zemaphyte ®
Ten Herbs
Atopic eczema 1 Liver toxicity 62 , 63

⬆Benefit as compared to placebo, ? ⇧ Reported benefit unlikely (due to design or analytical flaw), = Same as compared to placebo.

From: Letter 25, Herbal Medicines

Cover of Therapeutics Letter
Therapeutics Letter.
Perry T, editor.
Vancouver (BC): Therapeutics Initiative; 1994-.
Copyright © 1994 - 2022 Therapeutics Initiative, University of British Columbia.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.