Plant Comparison

Devil's Claw vs Clove

A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.

First plant
Second plant
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Plant ADevil's ClawHarpagophytum procumbensPedaliaceaeFull monograph →
Plant BCloveSyzygium aromaticumMyrtaceaeFull monograph →

At a glance

Devil's Claw and Clove: they share 6 indicated uses (arthritis / joint pain, back pain, headache, …); 2 pharmacological actions in common.

Devil's ClawClove
Constituents23
Pharmacological actions26
Indicated uses612
Safety notes32
Cited sources1514
Indicated uses
Only Devil's Claw
none
Shared (6)
Arthritis / joint painBack painHeadacheInflammation (general)Pain (general)Skin irritation
Only Clove
BloatingCancer (anticancer research)IndigestionInfection (general)Oral & throat healthWounds
Pharmacological actions
Only Devil's Claw
none
Shared (2)
Analgesic (pain relief)Anti-inflammatory
Only Clove
Anticancer (preclinical)AntimicrobialAntioxidantDigestive aid

Evidence face-off — shared uses

ConditionDevil's ClawCloveVerdict
Arthritis / joint pain8/102/10Stronger for Devil's Claw
Back pain9/101/10Stronger for Devil's Claw
Headache8/101/10Stronger for Devil's Claw
Inflammation (general)8/101/10Stronger for Devil's Claw
Pain (general)9/101/10Stronger for Devil's Claw
Skin irritation8/101/10Stronger for Devil's Claw

Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.

Key Constituents

Iridoid glycosides (harpagoside, harpagide, procumbide)[12, 13, 14]

Harpagoside is the main marker compound and anti-inflammatory principle; effective extracts are standardised to it, with the better-quality clinical evidence using preparations delivering roughly 50-60 mg harpagoside per day.

Iridoid glycosidesHarpagosideGlycosides
Phenylethanoids (acteoside/verbascoside) and flavonoids[13]

Antioxidant supporting constituents.

Verbascoside (acteoside)Flavonoids
Essential oil (eugenol)[1, 2]

Eugenol typically makes up the great majority of clove oil and is responsible for most of its analgesic, antimicrobial and anti-inflammatory activity.

Essential (volatile) oilEugenol
Flavonoids and phenolic acids[3]

Contribute additional antioxidant activity.

FlavonoidsPhenolic acids
Tannins[2]

Contribute mild astringency.

Tannins

Pharmacological Actions

Analgesic (pain relief)[1, 2, 4, 6, 7, 9, 10, 12, 13]

Anti-inflammatory and analgesic for osteoarthritis (hip and knee) pain

Anti-inflammatory[1, 3, 4, 5, 6, 8, 9, 11, 12, 13]

Anti-inflammatory and analgesic for osteoarthritis (hip and knee) pain

Analgesic (pain relief)[2, 11, 12, 13]
Anti-inflammatory[2, 3, 8, 11, 12, 13]
Anticancer (preclinical)[10]
Antimicrobial[1, 2, 3, 5, 7, 11, 12, 13]
Antioxidant[1, 2, 4, 6, 7, 11, 12, 13]
Digestive aid[9, 11, 12, 13]

Traditional & Indicated Uses

Arthritis / joint pain[12, 13]Good · 8/10

Anti-inflammatory and analgesic for osteoarthritis (hip and knee) pain; General joint pain and arthritis support

Evidence: 8
Label: Arthritis / joint pain
Back pain[12, 13, 14, 15]Strong · 9/10

Effective at standardised doses (~50-60 mg harpagoside/day); an aqueous extract was non-inferior to rofecoxib for short-term chronic low back pain; Relief of chronic non-specific low back pain

Evidence: 9
Label: Back pain
Headache[12, 13]Good · 8/10

inferred from analgesic action

Evidence: 8
Label: Headache
Inflammation (general)[12, 13]Good · 8/10

inferred from anti-inflammatory action

Evidence: 8
Label: Inflammation (general)
Pain (general)[12, 13, 14, 15]Strong · 9/10

Anti-inflammatory and analgesic for osteoarthritis (hip and knee) pain; Effective at standardised doses (~50-60 mg harpagoside/day); an aqueous extract was non-inferior to rofecoxib for short-term chronic low back pain; General joint pain and arthritis support; Relief of chronic non-specific low back pain

Evidence: 9
Label: Pain (general)
Skin irritation[12, 13]Good · 8/10

inferred from anti-inflammatory action

Evidence: 8
Label: Skin irritation
Arthritis / joint pain[8, 11, 12, 13]Traditional · 2/10

inferred from anti-inflammatory action

Evidence: 2
Label: Arthritis / joint pain
Back pain[11, 12, 13]Traditional · 1/10

inferred from analgesic action

Evidence: 1
Label: Back pain
Bloating[11, 12, 13]Traditional · 1/10

inferred from digestive action

Evidence: 1
Label: Bloating
Cancer (anticancer research)[10]Traditional · 2/10

inferred from anticancer action

Evidence: 2
Label: Cancer (anticancer research)
Headache[11, 12, 13]Traditional · 1/10

inferred from analgesic action

Evidence: 1
Label: Headache
Indigestion[11, 12, 13]Traditional · 1/10

inferred from digestive action

Evidence: 1
Label: Indigestion
Infection (general)[5, 11, 12, 13]Traditional · 2/10

inferred from antimicrobial action

Evidence: 2
Label: Infection (general)
Inflammation (general)[11, 12, 13]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Inflammation (general)
Oral & throat health[11, 12, 13]Traditional · 1/10
Evidence: 1
Label: Oral & throat health
Pain (general)[11, 12, 13]Traditional · 1/10
Evidence: 1
Label: Pain (general)
Skin irritation[11, 12, 13]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Skin irritation
Wounds[11, 12, 13]Traditional · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Wounds

Safety, Cautions & Contraindications

Safety note[13]Caution

Because it is a bitter that increases stomach-acid and bile secretion, it is contraindicated in active peptic ulcer, gastritis and (without medical supervision) gallstones.

Safety note[13]Caution

May add to the effect of anticoagulants (e.g. warfarin) and may influence blood sugar, blood pressure and heart rhythm; use caution with these medicines.

Safety note[13]Caution

Avoid during pregnancy (oxytocic/uterine effect) and while breastfeeding.

Safety note[11, 12, 13]Caution

Strong and concentrated: Clove oil is very potent and should always be diluted before skin or mouth use.Dental use: Undiluted clove oil can burn gums or skin.Blood thinning: Clove may increase bleeding risk in large amounts or with anticoagulants.Pregnancy: Culinary amounts are fine; medicinal doses should be used cautiously.Children: Essential oil should be used with extra caution and diluted well.

Safety note[11, 12, 13, 14]Caution

Duke (2002) rates cloves as +++ with clinical evidence (score 2) for analgesic activity — specifically, topical application of clove oil (eugenol) for dental pain is clinically validated. The plant also shows strong antimicrobial, antifungal (anti-Candida), antispasmodic, and antiviral activities at the experimental level. Commission E approves topical clove preparations for dental pain. Recommended dose: 1–5% clove oil preparation (topical) or 150 mg clove powder internally. The essential oil is irritating to mucous membranes and should not be applied undiluted to skin or mucous membranes (Duke, 2002).

External Ids

Gbif: 3585335
Powo: urn:lsid:ipni.org:names:675824-1
Wikidata: Q386675
Gbif: 3183002
Wikidata: Q26736

Botanical Description

Low-growing, sprawling perennial herb with trailing stems and deeply lobed, greyish-green leaves arising from a large, fleshy primary taproot bearing smaller secondary storage tubers (the part used medicinally). Striking funnel-shaped, purplish-pink to violet flowers give way to a distinctive woody fruit covered in long, hooked spines - the origin of the common name.[13]

Height: Trailing stems to 1.5 m, low-growing
Habit: Low-growing, sprawling perennial herb
Leaves: Deeply lobed, greyish-green
Flowers: Funnel-shaped, purplish-pink to violet
Stem: Trailing, sprawling stems
Root: Large primary taproot with smaller secondary storage tubers (the medicinal part)
Fruit: Woody capsule covered in long, hooked spines ('devil's claw')
Flowering Period: Summer (during the rainy season)

Evergreen tree (Myrtaceae), 8-12 m tall (occasionally to 20 m), with a pyramidal crown. Leaves are glossy, elliptical and aromatic. Small crimson flowers are borne in terminal clusters; the unopened flower buds, picked before they open and dried, are the 'cloves' of commerce and the medicinal/culinary part used.[2]

Height: 8-12 m (occasionally to 20 m)
Habit: Evergreen tree with a pyramidal crown
Leaves: Glossy, elliptical, aromatic
Flowers: Small, crimson, in terminal clusters; unopened buds are the harvested cloves
Stem: Woody, branching
Root: Deep woody root system
Fruit: Small drupe ("mother clove"), less commonly harvested than the flower bud
Flowering Period: Variable, often twice a year in tropical climates

Habitat

Native to the dry savannas and semi-desert regions of southern Africa, particularly the Kalahari Desert region of Namibia, Botswana and South Africa.[13]

Native to the Maluku Islands (Moluccas, the historic 'Spice Islands') of Indonesia, now cultivated throughout the tropics, notably Zanzibar, Madagascar, Sri Lanka and Indonesia, in warm, humid, well-drained tropical conditions.[2]

Harvesting

The secondary root tubers are dug by hand, sliced and dried in the sun, traditionally by local harvesters in southern Africa; sustainable wild-harvesting practices are important given the plant's slow growth and habitat sensitivity.

Parts: Secondary root tuber

Unopened flower buds are hand-picked while still green-pink, just before they would open, then sun-dried until they turn dark reddish-brown - the familiar clove spice.[2]

Parts: Flower
Season: Before the flower buds open

Traditional Uses

Devil's claw has a long southern African traditional-medicine history as a remedy for fever, pain and digestive complaints, and is now one of the most clinically studied herbal analgesics for osteoarthritis and chronic low back pain, with standardised extracts showing efficacy comparable to some conventional analgesics in trials.[13]

Clove has an ancient trade history and a long traditional use across Asian, African and European medicine as a dental analgesic (chewed or applied as oil for toothache), a digestive carminative, and an antiseptic. Modern research on its principal constituent eugenol supports strong analgesic, antimicrobial, antioxidant and anti-inflammatory activity, with clove oil remaining a recognised topical dental-pain remedy.[2]

Preparations

Standardised extract[13, 14]

Root tuber extract standardised to harpagoside content, taken as capsules or tablets; the best-studied clinical form for osteoarthritis and back pain.

Whole clove (culinary/chewed)[2]

Whole dried flower buds chewed or infused for digestive and dental use.

Clove oil (topical, diluted)[11, 12, 13]

The classic dental-pain remedy, applied to the affected tooth/gum, always diluted.

Dosage

Standardised extract[14]

Clinical trials for osteoarthritis and back pain commonly use extracts providing around 50-60 mg harpagoside daily. Educational reference only, not a prescription.

Clove oil / powder[11, 12, 13]

Duke (2002): a 1-5% clove oil preparation topically, or about 150 mg clove powder internally. Educational reference only, not a prescription; never apply undiluted oil to skin or mucous membranes.

References

REF-1829, REF-1830, REF-1831, REF-1832, REF-1833, REF-1834, REF-1835, REF-1836, REF-1837, REF-1838, REF-1839
REF-1074, REF-1075, REF-1076, REF-1077, REF-1078, REF-1079, REF-1080, REF-1081, REF-1082, REF-1083

Lookalikes Review

Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07
Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07

References & Sources

  1. Mncwangi, N., Chen, W., Vermaak, I., Viljoen, A.M. and Gericke, N (2012) 'Devil's Claw - a review of the ethnobotany, phytochemistry and biological activity of Harpagophytum procumbens', Journal of Ethnopharmacology, 143(3), pp. 755-771. doi:10.1016/j.jep.2012.08.013 Meta-analysis / review
    https://doi.org/10.1016/j.jep.2012.08.013
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  3. Mariano, A., Bigioni, I., Mattioli, R., Di Sotto, A., Leopizzi, M., Garzoli, S., Mariani, P.F., Dalla Vedova, P., Ammendola, S. and Scotto d'Abusco, A (2022) 'Harpagophytum procumbens Root Extract Mediates Anti-Inflammatory Effects in Osteoarthritis Synoviocytes through CB2 Activation', Pharmaceuticals, 15(4), pp. 457. doi:10.3390/ph15040457 Preclinical
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  4. Gxaba, N. and Manganyi, M.C (2022) 'The Fight against Infection and Pain: Devil's Claw (Harpagophytum procumbens) a Rich Source of Anti-Inflammatory Activity: 2011-2022', Molecules, 27(11), pp. 3637. doi:10.3390/molecules27113637 Meta-analysis / review
    https://doi.org/10.3390/molecules27113637
  5. Menghini, L., Recinella, L., Leone, S., Chiavaroli, A., Cicala, C., Brunetti, L., Vladimir-Knezevic, S., Orlando, G. and Ferrante, C (2019) 'Devil's claw (Harpagophytum procumbens) and chronic inflammatory diseases: A concise overview on preclinical and clinical data', Phytotherapy Research, 33(9), pp. 2152-2162. doi:10.1002/ptr.6395 Meta-analysis / review
    https://doi.org/10.1002/ptr.6395
  6. Brien, S., Lewith, G.T. and McGregor, G (2006) 'Devil's Claw (Harpagophytum procumbens) as a treatment for osteoarthritis: a review of efficacy and safety', Journal of Alternative and Complementary Medicine, 12(10), pp. 981-993. doi:10.1089/acm.2006.12.981 Meta-analysis / review
    https://doi.org/10.1089/acm.2006.12.981
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  8. Recinella, L., Chiavaroli, A., Ronci, M., Menghini, L., Brunetti, L., Leone, S., Tirillini, B., Angelini, P., Covino, S., Venanzoni, R., Zengin, G., Di Simone, S., Ciferri, M.C., di Giacomo, V., Cataldi, A., Rapino, M., Valerio, V.D., Orlando, G. and Ferrante, C (2020) 'Multidirectional Pharma-Toxicological Study on Harpagophytum procumbens DC. ex Meisn.: An IBD-Focused Investigation', Antioxidants, 9(2), pp. 168. doi:10.3390/antiox9020168 Preclinical
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  9. Baghdikian, B., Lanhers, M.C., Fleurentin, J., Ollivier, E., Maillard, C., Balansard, G. and Mortier, F (1997) 'An analytical study, anti-inflammatory and analgesic effects of Harpagophytum procumbens and Harpagophytum zeyheri', Planta Medica, 63(2), pp. 171-176. doi:10.1055/s-2006-957638 Preclinical
    https://doi.org/10.1055/s-2006-957638
  10. Lim, D.W., Kim, J.G., Han, D. and Kim, Y.T (2014) 'Analgesic effect of Harpagophytum procumbens on postoperative and neuropathic pain in rats', Molecules, 19(1), pp. 1060-1068. doi:10.3390/molecules19011060 Preclinical
    https://doi.org/10.3390/molecules19011060
  11. Jang, M., Lim, S., Han, S., Park, H., Shin, I., Kim, J., Kim, N., Lee, J., Kim, K. and Kim, C (2003) 'Harpagophytum procumbens suppresses lipopolysaccharide-stimulated expressions of cyclooxygenase-2 and inducible nitric oxide synthase in fibroblast cell line L929', Journal of Pharmacological Sciences, 93(3), pp. 367-371. doi:10.1254/jphs.93.367 Preclinical
    https://doi.org/10.1254/jphs.93.367
  12. Chrubasik, S (2004) 'Devil's claw extract as an example of the effectiveness of herbal analgesics', Der Orthopade. doi:10.1007/s00132-004-0675-7 Clinical study
    https://doi.org/10.1007/s00132-004-0675-7
  13. Brendler, T., Gruenwald, J., Ulbricht, C. and Basch, E (2006) 'Devil's Claw (Harpagophytum procumbens DC): an evidence-based systematic review by the Natural Standard Research Collaboration', Journal of Herbal Pharmacotherapy. doi:10.1080/j157v06n01_09 Meta-analysis / review
    https://doi.org/10.1080/j157v06n01_09
  14. Chrubasik, S., Conradt, C. and Roufogalis, B.D (2004) 'Effectiveness of Harpagophytum extracts and clinical efficacy', Phytotherapy Research, 18(2), pp. 187--189. doi:10.1002/ptr.1416 Preclinical
    https://doi.org/10.1002/ptr.1416
  15. Gagnier, J.J., Chrubasik, S. and Manheimer, E (2004) 'Harpagophytum procumbens for osteoarthritis and low back pain: a systematic review', BMC Complementary and Alternative Medicine. doi:10.1186/1472-6882-4-13 Meta-analysis / review
    https://doi.org/10.1186/1472-6882-4-13
  1. Haro-Gonzalez, J.N., Castillo-Herrera, G.A., Martinez-Velazquez, M. and Espinosa-Andrews, H (2021) 'Clove Essential Oil (Syzygium aromaticum L. Myrtaceae): Extraction, Chemical Composition, Food Applications, and Essential Bioactivity for Human Health', Molecules, 26(21), pp. 6387. doi:10.3390/molecules26216387 Meta-analysis / review
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Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.