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Omnia Sana · Plant Monograph

Marjoram

Origanum majorana

Family LamiaceaeParts used Flower, LeafAlso known as sweet marjoram, knotted marjoram

This monograph compiles 6 pharmacological actions, 10 traditional / indicated uses, supported by 13 cited sources, drawn directly from the Omnia Sana plant database.

Pharmacological Actions

Anti-inflammatory[3, 6, 8, 11, 12, 13]
Antimicrobial[4, 6, 8, 9, 11, 12, 13]
Antioxidant[2, 6, 8, 9, 11, 12, 13]
Antispasmodic[1, 6, 10, 11, 12, 13]

Antispasmodic (cramp easing)

Digestive aid[6, 7, 11, 12, 13]
Sedative / sleep support[6, 11, 12, 13]

Traditional & Indicated Uses

Arthritis / joint pain[11, 12, 13]Traditional · 1/10

inferred from anti-inflammatory action

more plants for arthritis / joint pain →detailed sources →
Bloating[11, 12, 13]Traditional · 1/10

inferred from digestive action

more plants for bloating →detailed sources →
Indigestion[11, 12, 13]Traditional · 1/10

inferred from digestive action

more plants for indigestion →detailed sources →
Infection (general)[4, 11, 12, 13]Traditional · 2/10

inferred from antimicrobial action

more plants for infection (general) →detailed sources →
Inflammation (general)[3, 11, 12, 13]Traditional · 2/10

inferred from anti-inflammatory action

more plants for inflammation (general) →detailed sources →
Insomnia / sleeplessness[11, 12, 13]Traditional · 1/10

inferred from sedative action

more plants for insomnia / sleeplessness →detailed sources →
Menstrual cramps[11, 12, 13]Traditional · 1/10

inferred from antispasmodic action

more plants for menstrual cramps →detailed sources →
Muscle spasm[1, 11, 12, 13]Traditional · 2/10

inferred from antispasmodic action

more plants for muscle spasm →detailed sources →
Skin irritation[11, 12, 13]Traditional · 1/10

inferred from anti-inflammatory action

more plants for skin irritation →detailed sources →
Wounds[11, 12, 13]Traditional · 1/10

inferred from antimicrobial action

more plants for wounds →detailed sources →

Safety, Cautions & Contraindications

Safety note[11, 12, 13]Caution

Generally very safe as a culinary herb. Essential oil should not be ingested in large amounts and avoided in pregnancy. Theoretically may interact with anticoagulants. Avoid medicinal doses during pregnancy.

Safety note[11, 12, 13]Caution

Duke (2002) rates marjoram (Origanum majorana) as +++ and notes antiviral, antispasmodic, COX-2 inhibitory, and antiseptic activities at the experimental level (score 1). It demonstrates antiherpetic activity in vitro. The plant contains rosmarinic acid and thymol, which contribute to antioxidant and antimicrobial effects. Dose: 1–2 g dried herb as tea three times daily or equivalent preparations. Duke notes the plant is generally well-tolerated with no significant contraindications at usual herbal doses (Duke, 2002).

References

REF-1223, REF-1224, REF-1225, REF-1226, REF-1227, REF-1228, REF-1229, REF-1230, REF-1231, REF-1232

References & Sources

  1. Rehman, N.U., Ansari, M.N., Ahmad, W. and Ali, A (2024) 'Calcium Channel Inhibitory Effect of Marjoram (Origanum majorana L.): Its Medicinal Use in Diarrhea and Gut Hyperactivity', Frontiers in Bioscience (Landmark Edition), 29(2), pp. 47. doi:10.31083/j.fbl2902047 Preclinical
    https://doi.org/10.31083/j.fbl2902047
  2. Hussein, Z. and Yasir, S.M (2022) 'Origanum majorana attenuates ciprofloxacin-induced nephropathy in rats', Wiadomosci Lekarskie, 75(12), pp. 3046-3049. doi:10.36740/WLek202212126 Preclinical
    https://doi.org/10.36740/WLek202212126
  3. Elfiky, A.M., Ibrahim, R.S., Khattab, A.R., Kadry, M.O. and others (2025) 'Exploring the therapeutic potential of marjoram (Origanum majorana L.) in polycystic ovary syndrome: insights from serum metabolomics, network pharmacology and experimental validation', BMC Complementary Medicine and Therapies, 25(1), pp. 67. doi:10.1186/s12906-025-04774-5 Preclinical
    https://doi.org/10.1186/s12906-025-04774-5
  4. Waller, S.B., Cleff, M.B., de Mattos, C.B., da Silva, C.C. and others (2021) 'Protection of the marjoram (Origanum majorana Linn.) essential oil in cutaneous sporotrichosis caused by Sporothrix brasiliensis', Natural Product Research, 35(17), pp. 2977-2981. doi:10.1080/14786419.2019.1678617 Preclinical
    https://doi.org/10.1080/14786419.2019.1678617
  5. Haj-Husein, I., Tukan, S. and Alkazaleh, F (2016) 'The effect of marjoram (Origanum majorana) tea on the hormonal profile of women with polycystic ovary syndrome: a randomised controlled pilot study', Journal of Human Nutrition and Dietetics, 29(1), pp. 105-111. doi:10.1111/jhn.12290 Randomized trial
    https://doi.org/10.1111/jhn.12290
  6. Bouyahya, A., Chamkhi, I., Benali, T., Guaouguaou, F.E. and others (2021) 'Traditional use, phytochemistry, toxicology, and pharmacology of Origanum majorana L', Journal of Ethnopharmacology, 265, pp. 113318. doi:10.1016/j.jep.2020.113318 Meta-analysis / review
    https://doi.org/10.1016/j.jep.2020.113318
  7. Al-Howiriny, T., Alsheikh, A., Alqasoumi, S., Al-Yahya, M. and others (2009) 'Protective Effect of Origanum majorana L. 'Marjoram' on various models of gastric mucosal injury in rats', The American Journal of Chinese Medicine, 37(3), pp. 531-545. doi:10.1142/S0192415X0900703X Preclinical
    https://doi.org/10.1142/S0192415X0900703X
  8. Bina, F. and Rahimi, R (2017) 'Sweet Marjoram: A Review of Ethnopharmacology, Phytochemistry, and Biological Activities', Journal of Evidence-Based Complementary & Alternative Medicine, 22(1), pp. 175-185. doi:10.1177/2156587216650793 Meta-analysis / review
    https://doi.org/10.1177/2156587216650793
  9. Paudel, P.N., Satyal, P., Satyal, R., Setzer, W.N. and others (2022) 'Chemical Composition, Enantiomeric Distribution, Antimicrobial and Antioxidant Activities of Origanum majorana L. Essential Oil from Nepal', Molecules, 27(18), pp. 6136. doi:10.3390/molecules27186136 Preclinical
    https://doi.org/10.3390/molecules27186136
  10. Makrane, H., Aziz, M., Mekhfi, H., Ziyyat, A. and others (2019) 'Origanum majorana L. extract exhibit positive cooperative effects on the main mechanisms involved in acute infectious diarrhea', Journal of Ethnopharmacology, 239, pp. 111503. doi:10.1016/j.jep.2018.09.005 Preclinical
    https://doi.org/10.1016/j.jep.2018.09.005
  11. Baser, K.H.C (2008) 'Biological and pharmacological activities of carvacrol and carvacrol bearing essential oils', 14(29), pp. 3106--3119. Traditional / reference
    Find this source
  12. Hoffmann, D (2003) 'Medical Herbalism'. Traditional / reference
    Find this source
  13. Seidler-Lozykowska, K. et al (2016) 'Essential oil content and composition of sweet marjoram (Origanum majorana L.) grown in Poland', 62(1), pp. 37--45. Traditional / reference
    Find this source

Record last updated 2026-06-20 · Provenance: book+pubmed · Status: verified

This fact sheet is generated automatically from the Omnia Sana plant database and reflects its latest synced data. It is provided for educational purposes only and is not medical advice. Always consult a qualified practitioner before using medicinal plants.

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