Plant Comparison

Wormwood vs Wild Lettuce

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 AWormwoodArtemisia absinthiumAsteraceaeFull monograph →
Plant BWild LettuceLactuca virosaAsteraceaeFull monograph →

At a glance

Wormwood and Wild Lettuce: both belong to the Asteraceae family.

WormwoodWild Lettuce
Constituents32
Pharmacological actions74
Indicated uses128
Safety notes22
Cited sources1714
Indicated uses
Only Wormwood
Arthritis / joint painBloatingBlood sugar / diabetes supportCancer (anticancer research)IndigestionInfection (general)Inflammation (general)Menstrual crampsMetabolic supportMuscle spasmSkin irritationWounds
Shared (0)
none
Only Wild Lettuce
AnxietyBack painCoughHeadacheInsomnia / sleeplessnessNervous tensionPain (general)Stress
Pharmacological actions
Only Wormwood
Anti-inflammatoryAnticancer (preclinical)Antidiabetic (blood-sugar lowering)AntimicrobialAntioxidantAntispasmodicDigestive aid
Shared (0)
none
Only Wild Lettuce
Analgesic (pain relief)Antitussive (cough suppressant)Anxiolytic / calmingSedative / sleep support

Key Constituents

Sesquiterpene lactones (absinthin, artabsin)[1, 4]

Intensely bitter sesquiterpene lactones responsible for the classic digestive-bitter action.

Sesquiterpene lactonesSesquiterpenes
Essential oil (thujone, other monoterpenes)[1]

Volatile oil containing thujone (alpha- and beta-isomers), the neurotoxic ketone that limits safe internal use, along with other monoterpenes.

Essential (volatile) oilTerpenes / terpenoids
Flavonoids and phenolic acids[3]

Antioxidant constituents contributing to the plant's antioxidant activity.

FlavonoidsPhenolic acids
Sesquiterpene lactones (lactucin, lactucopicrin)[4, 11, 12]

Bitter, centrally-active constituents responsible for the sedative and pain-relieving effects; isolated lactucin and lactucopicrin produced analgesia comparable to ibuprofen and sedation in rodent tests.

Sesquiterpene lactonesSesquiterpenes
Lactucarium (the dried milky latex)[11]

The historical medicinal preparation, concentrating the active lactones.

Pharmacological Actions

Anti-inflammatory[10, 13, 14]
Anticancer (preclinical)[1, 15, 16]

Artemisia absinthium (wormwood) total flavonoids and its constituent alpha/beta-thujone induce ROS- and caspase-mediated apoptosis in cervical and choriocarcinoma cancer cells (preclinical).

Antidiabetic (blood-sugar lowering)[5, 6, 7, 13, 14]
Antimicrobial[1, 9, 13, 14]
Antioxidant[1, 3, 5, 6, 10, 13, 14]
Antispasmodic[13, 14]

Antispasmodic (cramp easing)

Digestive aid[4, 8, 13, 14]
Analgesic (pain relief)[4, 6, 11, 12]

Mild analgesic / anodyne for pain (lactucin and lactucopicrin act on the central nervous system) - in mice these compounds produced analgesia comparable to ibuprofen

Antitussive (cough suppressant)[5, 11]

Antitussive for an irritable, dry cough (traditional)

Anxiolytic / calming[11]

Calming for nervous tension and restlessness

Sedative / sleep support[4, 6, 7, 8, 11]

Sedative for sleeplessness / insomnia - lactucin and lactucopicrin showed sedative activity in animal models

Traditional & Indicated Uses

Arthritis / joint pain[13, 14]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Arthritis / joint pain
Bloating[13, 14]Traditional · 1/10

inferred from digestive action

Evidence: 1
Label: Bloating
Blood sugar / diabetes support[13, 14]Traditional · 1/10

inferred from antidiabetic action

Evidence: 1
Label: Blood sugar / diabetes support
Cancer (anticancer research)[1, 15, 16]Traditional · 2/10

Artemisia absinthium (wormwood) total flavonoids (cynaroside, astragalin) inhibit HeLa cervical cancer cells via ROS-mediated apoptosis, and its terpenoid alpha,beta-thujone induces caspase-dependent apoptosis in choriocarcinoma cells and sensitizes them to paclitaxel (preclinical).

Evidence: 2
Label: Cancer (anticancer research)
Indigestion[13, 14]Traditional · 1/10

inferred from digestive action

Evidence: 1
Label: Indigestion
Infection (general)[13, 14]Traditional · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Infection (general)
Inflammation (general)[13, 14]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Inflammation (general)
Menstrual cramps[13, 14]Traditional · 1/10

inferred from antispasmodic action

Evidence: 1
Label: Menstrual cramps
Metabolic support[13, 14]Traditional · 1/10

inferred from antidiabetic action

Evidence: 1
Label: Metabolic support
Muscle spasm[13, 14]Traditional · 1/10

inferred from antispasmodic action

Evidence: 1
Label: Muscle spasm
Skin irritation[13, 14]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Skin irritation
Wounds[13, 14]Traditional · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Wounds
Anxiety[11]Traditional · 1/10

inferred from anxiolytic action

Evidence: 1
Label: Anxiety
Back pain[4, 11, 12]Traditional · 2/10

inferred from analgesic action

Evidence: 2
Label: Back pain
Cough[11]Traditional · 1/10

Antitussive for an irritable, dry cough (traditional)

Evidence: 1
Label: Cough
Headache[4, 11, 12]Traditional · 2/10

inferred from analgesic action

Evidence: 2
Label: Headache
Insomnia / sleeplessness[4, 11]Traditional · 2/10

Sedative for sleeplessness / insomnia - lactucin and lactucopicrin showed sedative activity in animal models

Evidence: 2
Label: Insomnia / sleeplessness
Nervous tension[11]Traditional · 1/10

Calming for nervous tension and restlessness

Evidence: 1
Label: Nervous tension
Pain (general)[4, 11, 12]Traditional · 2/10

Mild analgesic / anodyne for pain (lactucin and lactucopicrin act on the central nervous system) - in mice these compounds produced analgesia comparable to ibuprofen

Evidence: 2
Label: Pain (general)
Stress[11]Traditional · 1/10

inferred from anxiolytic action

Evidence: 1
Label: Stress

Safety, Cautions & Contraindications

Safety note[13, 14]Caution

CAUTION: Contains thujone, which is neurotoxic in significant amounts. Internal use should be limited in duration and dose — short-term use only (under 4 weeks). Contraindicated in pregnancy (powerful uterine stimulant). Avoid in epilepsy, renal disease, and in children. The small amounts present in properly prepared bitter tinctures and vermouth are generally considered safe. The thujone content of absinthe was historically exaggerated.

Safety note[13, 14, 17]Caution

Duke (2002) rates wormwood as + (use with caution) and provides clinical evidence (score 2) for use as an aperitif and bitter digestive tonic, consistent with Commission E approval for dyspeptic complaints and loss of appetite. The plant contains absinthin and artabsin (bitter sesquiterpene lactones) responsible for digestive stimulation, and also thujone — a neurotoxic ketone that is the active agent responsible for 'absinthism' (historical neurological syndrome linked to absinthe consumption). Duke strongly cautions that thujone content limits safe long-term use, and wormwood should not be taken internally for more than 4 weeks at a time. Strictly contraindicated in pregnancy (abortifacient, neurotoxic) and epilepsy (Duke, 2002).

Safety note[12]Info

Can be unsafe in large amounts or if harvested too early: overdose can cause sweating, fast heartbeat, dilated pupils, dizziness, ringing in the ears, vision changes, heavy sedation, breathing difficulty and, in extreme cases, death.

Safety note[11, 12]Caution

Its sedative effect can add to that of sedatives and alcohol - avoid combining and do not use before driving. As a daisy-family (Asteraceae) plant it can cause allergy; avoid in pregnancy and breastfeeding.

External Ids

Gbif: 3121319
Wikidata: Q25686
Gbif: 3140346
Wikidata: Q578927

Botanical Description

Aromatic, silvery-grey perennial herb with finely divided, silky-hairy leaves and numerous small, pale yellow, drooping, globe-shaped flower heads borne in loose branched panicles. The whole plant has a characteristic intensely bitter taste and a pungent, sage-like aroma.[4]

Height: 60-120 cm
Habit: Erect, silvery-grey, aromatic perennial herb
Leaves: Finely divided (2-3-pinnatisect), silky-hairy, silvery-grey
Flowers: Small, pale yellow, drooping, globe-shaped flower heads in loose branched panicles
Stem: Erect, ridged, silvery-hairy, woody at the base
Root: Woody rootstock
Fruit: Small achene without pappus
Flowering Period: July-September

Tall, bristly biennial herb with a milky latex throughout, and prickly-edged, often blue-green leaves that tend to twist to align edge-on with the sun ('compass plant' habit). Small, pale yellow, dandelion-like flower heads are borne in loose branched clusters atop a tall, spiny-stemmed flowering stalk.[11]

Height: 1-2 m
Habit: Tall, bristly biennial herb; low rosette in year one, tall flowering stem in year two
Leaves: Prickly-edged, often blue-green, sometimes twisting edge-on to the sun
Flowers: Small, pale yellow, dandelion-like flower heads in loose branched clusters
Stem: Tall, spiny, exuding milky white latex when cut
Root: Taproot
Fruit: Small achene with a feathery pappus
Flowering Period: July-September (second year)

Habitat

Grows on dry, sunny, stony or waste ground, roadsides and field margins; native to Europe, North Africa and temperate Asia, and naturalised in North America.[4]

Grows on dry waste ground, roadsides, hedgerows and disturbed soil; native to Europe, North Africa and Western Asia and naturalised in North America.

Harvesting

The flowering aerial parts (leaf, stem and flower) are cut as flowering begins, in mid- to late summer, and dried in a warm, shaded, airy place.[4]

Parts: Flower, Leaf, Stem
Season: Mid- to late summer, at the start of flowering

The milky latex is traditionally collected by scoring the flowering stem and letting the exuded sap dry into lactucarium; the aerial parts (leaf and stem) are also cut and dried while the plant is flowering.[11]

Parts: Aerial parts and dried latex (lactucarium)
Season: Flowering (second year); latex collected by scoring the stem

Traditional Uses

Wormwood is one of the classic bitter digestive herbs of European tradition, used to stimulate appetite and bile flow for dyspeptic complaints, and historically as a vermifuge (its common name reflects traditional use against intestinal worms) and in the production of absinthe and vermouth.[1, 4]

Wild lettuce has a long folk history, reflected in the name 'opium lettuce', as a mild sedative and analgesic remedy for insomnia, nervous tension and pain, and as an antitussive for irritable dry cough, its dried latex (lactucarium) once used as a milder, non-addictive alternative to opium.[11]

Preparations

Infusion[1]

Dried flowering herb infused briefly in hot water as a very bitter digestive tea, taken before meals to stimulate appetite.

Infusion[11]

Dried aerial parts infused in hot water as a traditional calming, sleep-supporting tea.

Lactucarium (historical)[12]

Dried milky latex, the classic historical preparation, used cautiously given its overdose toxicity.

Dosage

Short-term use only[13]

Because of its thujone content, traditional herbal references limit internal use to small bitter doses (around 0.5-1 g dried herb per cup) for no more than about 4 weeks at a time. Educational reference only, not a prescription.

Infusion[12]

Because of documented overdose toxicity (rapid heartbeat, heavy sedation, breathing difficulty), only conservative traditional herbal doses should be used and this herb should not be self-dosed at concentrated or extract strength without professional guidance. Educational reference only, not a prescription.

References

REF-0728, REF-0729, REF-0730, REF-1770, REF-1771, REF-1772, REF-1773, REF-1774, REF-1775, REF-1776, REF-1777, REF-1778
REF-0854, REF-0855, REF-0856, REF-0622, REF-2059, REF-2060, REF-2061, REF-2062, REF-2063, REF-2064

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

Drug Class Interactions

Not documented

Safety note[13, 14]Caution
Drug Class: sedatives-cns-depressants
Mechanism: Wild lettuce is traditionally used as a calming, sedative herb; taken with sedatives, sleeping tablets or other central-nervous-system depressants (including alcohol) it may add to drowsiness and slowed reactions.
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-03

References & Sources

  1. Batiha, G.E.S., Olatunde, A., El-Mleeh, A., Hetta, H.F., Al-Rejaie, S. et al (2020) 'Bioactive Compounds, Pharmacological Actions, and Pharmacokinetics of Wormwood (Artemisia absinthium)', Antibiotics (Basel), 9(6), pp. 353. doi:10.3390/antibiotics9060353 Traditional / reference
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  2. Wubuli, A., Abdulla, R., Zhao, J., Wu, T. and Aisa, H.A (2024) 'Exploring anti-inflammatory and antioxidant-related quality markers of Artemisia absinthium L. based on spectrum-effect relationship', Phytochemical Analysis, 35(5), pp. 1152-1173. doi:10.1002/pca.3350 Preclinical
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  3. Rashidi, R., Akaberi, M., Gholoobi, A., Ghazavi, H. and Forouzanfar, F (2023) 'Artemisia absinthium Extract Attenuates the Quinolinic Acid-Induced Cell Injury in OLN-93 Cells', Current Drug Discovery Technologies, 20(4), pp. e300323215213. doi:10.2174/1570163820666230330105331 Preclinical
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  4. Szopa, A., Pajor, J., Klin, P., Rzepiela, A., Elansary, H.O., Al-Mana, F.A., Mattar, M.A. and Ekiert, H (2020) 'Artemisia absinthium L. - Importance in the History of Medicine, the Latest Advances in Phytochemistry and Therapeutical, Cosmetological and Culinary Uses', Plants, 9(9), pp. 1063. doi:10.3390/plants9091063 Meta-analysis / review
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  9. Liu, Z., Li, X., Jin, Y., Nan, T., Zhao, Y., Huang, L. and Yuan, Y (2023) 'New Evidence for Artemisia absinthium as an Alternative to Classical Antibiotics: Chemical Analysis of Phenolic Compounds, Screening for Antimicrobial Activity', International Journal of Molecular Sciences, 24(15), pp. 12044. doi:10.3390/ijms241512044 Preclinical
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  10. Moaca, E., Pavel, I.Z., Danciu, C., Crainiceanu, Z., Minda, D., Ardelean, F., Antal, D.S., Ghiulai, R., Cioca, A., Derban, M., Simu, S., Chioibas, R., Szuhanek, C. and Dehelean, C (2019) 'Romanian Wormwood (Artemisia absinthium L.): Physicochemical and Nutraceutical Screening', Molecules, 24(17), pp. 3087. doi:10.3390/molecules24173087 Preclinical
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  11. Turak, A., Shi, S., Jiang, Y. and Tu, P (2014) 'Dimeric guaianolides from Artemisia absinthium', Phytochemistry, 105, pp. 109-114. doi:10.1016/j.phytochem.2014.06.016 Preclinical
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  12. Correa-Ferreira, M.L., Noleto, G.R. and Oliveira Petkowicz, C.L (2013) 'Artemisia absinthium and Artemisia vulgaris: a comparative study of infusion polysaccharides', Carbohydrate Polymers, 102, pp. 738-745. doi:10.1016/j.carbpol.2013.10.096 Preclinical
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  15. Lee, J.-Y. and Park, H. and Lim, W. and Song, G (2020) 'alpha,beta-Thujone suppresses human placental choriocarcinoma cells via metabolic disruption', Reproduction, 159(6), pp. 745-756. doi:10.1530/REP-20-0018 Preclinical
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    https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition
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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.