Overview
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Herbal products are preparations derived from plants or plant parts, used for therapeutic, preventive, or health-promoting purposes
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They may contain whole plants, roots, leaves, seeds, flowers, or extracts, and can be formulated as teas, capsules, tablets, tinctures, essential oils, or topical applications
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Often categorized as dietary supplements in many countries, meaning they may not undergo the same rigorous approval processes as prescription drugs
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Utilized in traditional medicine systems such as Ayurveda, Traditional Chinese Medicine (TCM), Unani, and Western herbalism
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Active constituents can be alkaloids, glycosides, terpenoids, flavonoids, tannins, saponins, and phenolic compounds
Classification by Therapeutic Use
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Adaptogens – support stress resistance and recovery (e.g., ginseng, ashwagandha, rhodiola)
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Anti-inflammatory herbs – reduce inflammation (e.g., turmeric, boswellia, willow bark)
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Digestive aids – support digestion, reduce bloating (e.g., peppermint, ginger, chamomile)
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Cardiovascular support – improve circulation, regulate blood pressure (e.g., hawthorn, garlic, ginkgo biloba)
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Immune modulators – enhance or regulate immune function (e.g., echinacea, astragalus, elderberry)
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Nervine and mood support herbs – calm the nervous system or support mood (e.g., valerian, passionflower, St. John’s wort)
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Liver-supporting herbs – hepatoprotective activity (e.g., milk thistle, dandelion root)
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Urinary tract support – diuretic or anti-infective activity (e.g., cranberry, horsetail)
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Respiratory support – expectorant or anti-inflammatory for the lungs (e.g., mullein, licorice root)
Common Examples and Uses
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Turmeric (Curcuma longa) – curcumin as active compound; anti-inflammatory and antioxidant
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Ginseng (Panax ginseng / Panax quinquefolius) – adaptogen, improves stamina, cognitive function
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Garlic (Allium sativum) – cardiovascular support, antimicrobial activity
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Ginkgo biloba – cognitive enhancement, circulatory improvement
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Echinacea purpurea – immune stimulation, cold prevention
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Milk thistle (Silybum marianum) – liver protection, antioxidant
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Peppermint (Mentha piperita) – digestive relief, antispasmodic
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Valerian root (Valeriana officinalis) – sleep aid, anxiolytic
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Aloe vera – topical for burns, skin healing, internal use for digestion (with caution)
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Cinnamon (Cinnamomum spp.) – blood sugar regulation, antimicrobial
Safety Considerations
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Quality control: Variable potency and purity, risk of contamination with heavy metals, pesticides, or adulterants
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Drug-herb interactions: Some herbs affect CYP450 enzymes or clotting (e.g., St. John’s wort reduces levels of many drugs; ginkgo increases bleeding risk)
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Toxicity: Some herbs are toxic in high doses (e.g., comfrey contains hepatotoxic pyrrolizidine alkaloids; aristolochia is nephrotoxic)
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Pregnancy and lactation: Many herbs lack safety data or may cause uterine contractions or harm to the fetus
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Allergic reactions: Possible, especially in individuals allergic to related plant families
Regulation
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In the US: Regulated as dietary supplements under the Dietary Supplement Health and Education Act (DSHEA) – manufacturers are responsible for safety, labeling, and claims, but FDA approval is not required before marketing
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In EU: Regulated under Traditional Herbal Medicinal Products Directive (THMPD) – products must meet quality and safety requirements and have evidence of traditional use
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In other regions: May be regulated as foods, supplements, or medicines, depending on jurisdiction
Comprehensive Therapeutic Classification of Common Medicinal Herbs
1. Adaptogens (Support Stress Resistance and Recovery)
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Panax ginseng (Asian ginseng) – ginsenosides; improves stamina, cognitive function, immune support
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Panax quinquefolius (American ginseng) – ginsenosides; stress adaptation, immune modulation
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Withania somnifera (Ashwagandha) – withanolides; reduces anxiety, enhances endurance
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Rhodiola rosea (Rhodiola) – rosavin, salidroside; fatigue reduction, mental performance support
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Eleutherococcus senticosus (Siberian ginseng) – eleutherosides; increases resilience to stress, supports immunity
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Schisandra chinensis (Schisandra) – lignans; liver protection, mental clarity, endurance
2. Anti-inflammatory Herbs
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Curcuma longa (Turmeric) – curcumin; reduces inflammation, antioxidant
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Boswellia serrata (Indian frankincense) – boswellic acids; joint health, anti-inflammatory
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Salix alba (White willow bark) – salicin; analgesic, antipyretic
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Harpagophytum procumbens (Devil’s claw) – iridoid glycosides; musculoskeletal pain relief
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Glycyrrhiza glabra (Licorice root) – glycyrrhizin; anti-inflammatory, soothing for mucous membranes
3. Digestive Aids
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Zingiber officinale (Ginger) – gingerols, shogaols; anti-nausea, digestive stimulant
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Mentha piperita (Peppermint) – menthol; antispasmodic, relieves bloating
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Matricaria chamomilla (Chamomile) – apigenin; calming for digestion, anti-inflammatory
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Foeniculum vulgare (Fennel) – anethole; reduces bloating, mild expectorant
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Cinnamomum verum / Cinnamomum cassia (Cinnamon) – cinnamaldehyde; digestive aid, antimicrobial
4. Cardiovascular Support
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Allium sativum (Garlic) – allicin; reduces cholesterol, improves circulation
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Crataegus monogyna / Crataegus laevigata (Hawthorn) – flavonoids, oligomeric procyanidins; supports heart function
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Ginkgo biloba (Ginkgo) – ginkgolides, flavonoids; enhances circulation, cognitive support
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Terminalia arjuna (Arjuna) – triterpenoids; cardiotonic
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Camellia sinensis (Green tea) – catechins; antioxidant, supports healthy cholesterol levels
5. Immune Modulators
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Echinacea purpurea / Echinacea angustifolia – alkylamides; stimulates immune activity
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Astragalus membranaceus (Astragalus) – polysaccharides, saponins; strengthens immune resistance
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Sambucus nigra (Elderberry) – anthocyanins; antiviral activity, supports immunity
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Andrographis paniculata (Andrographis) – andrographolides; anti-infective, immune stimulant
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Ganoderma lucidum (Reishi mushroom) – polysaccharides, triterpenes; immune balancing, adaptogenic
6. Nervine and Mood Support Herbs
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Valeriana officinalis (Valerian) – valerenic acids; sedative, sleep aid
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Passiflora incarnata (Passionflower) – flavonoids; anxiolytic, sleep support
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Hypericum perforatum (St. John’s wort) – hypericin, hyperforin; mild antidepressant
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Melissa officinalis (Lemon balm) – rosmarinic acid; calming, digestive support
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Scutellaria lateriflora (American skullcap) – flavonoids; relaxant, nervous tension relief
7. Liver-Supporting Herbs (Hepatoprotective)
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Silybum marianum (Milk thistle) – silymarin; liver cell protection, detoxification support
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Taraxacum officinale (Dandelion root) – bitter compounds; stimulates bile flow
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Picrorhiza kurroa (Kutki) – iridoid glycosides; liver protection, immune modulation
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Artemisia capillaris (Yin chen hao) – flavonoids; liver heat clearing in TCM
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Schisandra chinensis (Schisandra) – lignans; antioxidant, liver function enhancement
8. Urinary Tract Support
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Vaccinium macrocarpon (Cranberry) – proanthocyanidins; prevents bacterial adhesion in urinary tract
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Equisetum arvense (Horsetail) – silica; diuretic, urinary tract health
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Arctostaphylos uva-ursi (Bearberry) – arbutin; urinary antiseptic
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Zea mays (Corn silk) – flavonoids; soothing diuretic
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Juniperus communis (Juniper berry) – volatile oils; antimicrobial, diuretic
9. Respiratory Support
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Verbascum thapsus (Mullein) – mucilage; expectorant, soothing for lungs
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Thymus vulgaris (Thyme) – thymol; antimicrobial, expectorant
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Tussilago farfara (Coltsfoot) – mucilage; cough relief (use with caution due to pyrrolizidine alkaloids)
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Glycyrrhiza glabra (Licorice root) – demulcent, anti-inflammatory for respiratory tract
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Pelargonium sidoides (Umckaloabo) – coumarins; supports immune response in respiratory infections
10. Skin and Wound Healing Herbs
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Aloe vera – polysaccharides; skin soothing, wound healing
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Calendula officinalis (Calendula) – triterpenes, flavonoids; anti-inflammatory, skin repair
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Centella asiatica (Gotu kola) – triterpenoid saponins; wound healing, connective tissue support
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Plantago major (Plantain leaf) – allantoin; anti-inflammatory, wound healing
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Lavandula angustifolia (Lavender) – essential oils; antimicrobial, calming
11. Endocrine and Blood Sugar Regulation Herbs
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Gymnema sylvestre (Gymnema) – gymnemic acids; reduces sugar absorption
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Trigonella foenum-graecum (Fenugreek) – saponins; improves glucose tolerance
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Cinnamomum verum (Ceylon cinnamon) – polyphenols; blood sugar modulation
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Momordica charantia (Bitter melon) – charantin; hypoglycemic effect
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Panax ginseng – supports energy metabolism, insulin sensitivity
12. Women’s Health Herbs
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Angelica sinensis (Dong quai) – coumarins; supports menstrual health
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Vitex agnus-castus (Chaste tree berry) – diterpenes; hormone modulation
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Cimicifuga racemosa (Black cohosh) – triterpene glycosides; menopause symptom relief
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Rubus idaeus (Red raspberry leaf) – tannins; uterine tonic
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Alchemilla vulgaris (Lady’s mantle) – tannins; menstrual support
13. Men’s Health Herbs
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Serenoa repens (Saw palmetto) – fatty acids; prostate health
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Pygeum africanum (Pygeum) – sterols; supports urinary flow in BPH
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Eurycoma longifolia (Tongkat ali) – quassinoids; supports libido, testosterone balance
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Tribulus terrestris – steroidal saponins; supports male reproductive health
14. Circulatory and Blood Health Herbs
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Capsicum annuum (Cayenne pepper) – capsaicin; improves circulation
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Zingiber officinale (Ginger) – antiplatelet, circulatory stimulant
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Allium sativum (Garlic) – reduces platelet aggregation
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Ginkgo biloba – improves microcirculation, reduces clotting tendency
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