Plant Comparison
Hemp vs Valerian
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.
At a glance
Hemp and Valerian: they share 4 indicated uses (arthritis / joint pain, inflammation (general), insomnia / sleeplessness, …); 3 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Hemp | Valerian | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 5/10 | 8/10 | Stronger for Valerian |
| Inflammation (general) | 5/10 | 8/10 | Stronger for Valerian |
| Insomnia / sleeplessness | 5/10 | 10/10 | Stronger for Valerian |
| Skin irritation | 5/10 | 8/10 | Stronger for Valerian |
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
The characteristic bioactive compounds of the resin-bearing flowers, varying widely in ratio and concentration between cultivars; THC is psychoactive, CBD is not.
Aromatic terpenes contribute to the plant's characteristic scent and may modulate cannabinoid effects.
Hemp seed is rich in polyunsaturated fatty acids (including omega-3 and omega-6), giving the pressed seed oil its nutritional value; essentially free of psychoactive cannabinoids.
Sesquiterpenes thought to be key contributors to the sedative, GABA-A-modulating action.
Unstable iridoid esters historically of pharmacological interest, though their contribution to the whole-root effect is debated.
Responsible for the root's characteristic strong aroma.
Pharmacological Actions
Traditional & Indicated Uses
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from sedative action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from sedative action
Safety, Cautions & Contraindications
Industrial hemp (low-THC cannabis) seed oil and seeds are generally safe as food. CBD products derived from hemp may interact with medications metabolised by cytochrome P450 liver enzymes, including common anticoagulants, antiepileptics, and immunosuppressants. THC-containing preparations impair driving and are regulated or prohibited in many jurisdictions. Not recommended during pregnancy or breastfeeding. Quality and cannabinoid content vary widely between hemp products.
Duke (2002) rates cannabis as ++ and notes clinical evidence (score 2) for its antiemetic activity, especially relevant for chemotherapy-induced nausea. Score 1 activities include analgesic, anticonvulsant, and anti-inflammatory properties. Duke highlights the legal and pharmacological complexity, noting THC as the primary psychoactive compound. Medically, synthetic cannabinoids (dronabinol, nabilone) are clinically approved for nausea and anorexia. Duke cautions that while the plant has genuine therapeutic potential, psychoactive effects, legal restrictions, and risk of dependence with regular use must be considered (Duke, 2002).
Generally well tolerated for short-to-medium term use. May cause vivid dreams, morning grogginess, or headache in some individuals. Avoid combining with alcohol, sedatives, or anaesthetics. Do not drive immediately after taking high doses. Do not use in children under 3 years. Abrupt discontinuation after long-term use may cause withdrawal symptoms.
Duke (2002) does not appear to include a primary entry for Valeriana officinalis (European valerian) in the sections searched. The entry found was for Indian valerian (Valeriana jatamansi). Commission E approves European valerian for restlessness and sleep disorders. Dose: 400–900 mg standardized root extract before bedtime. Interactions include potentiation of CNS depressants and sedatives.
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Botanical Description
Erect annual herb with a distinctive palmately compound leaf of narrow, serrated leaflets. The plant is usually dioecious (separate male and female plants); female plants develop dense, resinous flower clusters, while male plants bear looser pollen-releasing flowers. The seed (achene) is small, hard-shelled and oil-rich.[14]
Tall, upright perennial herb with hollow, grooved stems and opposite, pinnately divided leaves. Small, pale pink to white, sweetly scented flowers are borne in dense, domed clusters (cymes) at the top of the stem; the dried root has a distinctive strong, earthy, 'dirty sock' smell.[12]
Habitat
Believed native to Central Asia; now cultivated worldwide, with industrial hemp (low-THC cultivars) grown in temperate climates for fibre, seed and cannabinoid extraction, subject to varying legal regulation by jurisdiction.[14]
Grows in damp meadows, ditches, riverbanks and marshy ground, tolerating both sun and partial shade; native to Europe and parts of Asia and naturalised in North America.[12]
Harvesting
Flowers (and resin-bearing leaves) are harvested at peak resin/cannabinoid content, typically as the flower clusters mature in late summer to autumn; seed is harvested once mature and dried, then pressed for oil or used whole.[14]
The rhizome and roots are dug in autumn of the second year, once the strong characteristic aroma has developed, then cleaned and dried.[12]
Traditional Uses
Cannabis/hemp has a long multi-cultural history as a fibre, food and medicinal plant, traditionally used for pain, muscle spasm, sleep and appetite, alongside industrial use of the fibre and seed. Modern cannabinoid research, particularly on THC and CBD, has substantially expanded the evidence base for pain, spasticity and specific seizure disorders.[14, 15]
Preparations
Whole or hulled seed, or cold-pressed seed oil, used as a nutritional food source (essentially free of psychoactive cannabinoids).
Extract standardised to specific cannabinoid content (e.g. CBD), used in regulated medicinal products; regulatory status varies widely by jurisdiction and product type.
Standardized root extract taken shortly before bedtime, the form most used in clinical research.
References
Drug Class Interactions
Lookalikes Review
Dosage
Not documented
Commission E and clinical research commonly suggest around 400-900 mg standardized root extract taken 30-60 minutes before bedtime. Educational reference only, not a prescription.
Pairings
Not documented
Valerian and hops are traditionally combined for sleep; a controlled trial found the valerian-hops combination shortened the time to fall asleep more than valerian alone. Both add to sedation, so expect stronger drowsiness.[18, 19]
Valerian and passionflower are both mild GABA-acting sedatives often blended in sleep and calming formulas; combined use may enhance relaxation but also additive drowsiness.[19, 20]
Valerian and lemon balm are a classic calming pair acting on the GABA system to improve sleep quality; combined use may increase sedation.[19]
Dangerous Lookalikes
Not documented
References & Sources
- Rock, E.M. and Parker, L.A (2021) 'Constituents of Cannabis sativa', Advances in Experimental Medicine and Biology, 1264, pp. 1-13. doi:10.1007/978-3-030-57369-0_1 Traditional / reference
https://doi.org/10.1007/978-3-030-57369-0_1 - Castillo-Arellano, J., Canseco-Alba, A., Cutler, S.J. and León, F (2023) 'The Polypharmacological Effects of Cannabidiol', Molecules, 28(7), pp. 3271. doi:10.3390/molecules28073271 Traditional / reference
https://doi.org/10.3390/molecules28073271 - Pagano, C., Navarra, G., Coppola, L., Avilia, G. et al (2022) 'Cannabinoids: Therapeutic Use in Clinical Practice', International Journal of Molecular Sciences, 23(6), pp. 3344. doi:10.3390/ijms23063344 Traditional / reference
https://doi.org/10.3390/ijms23063344 - ElSohly, M.A., Radwan, M.M., Gul, W., Chandra, S. and Galal, A (2017) 'Phytochemistry of Cannabis sativa L', Progress in the Chemistry of Organic Natural Products, 103, pp. 1-36. doi:10.1007/978-3-319-45541-9_1 Meta-analysis / review
https://doi.org/10.1007/978-3-319-45541-9_1 - Viana, M.D.B., de Aquino, P.E.A., Estadella, D., Ribeiro, D.A. and Viana, G.S.D.B (2022) 'Cannabis sativa and cannabidiol: a therapeutic strategy for the treatment of neurodegenerative diseases?', Medical Cannabis and Cannabinoids, 5(1), pp. 207-219. doi:10.1159/000527335 Meta-analysis / review
https://doi.org/10.1159/000527335 - Alves, P., Amaral, C., Teixeira, N. and Correia-da-Silva, G (2020) 'Cannabis sativa: much more beyond delta-9-tetrahydrocannabinol', Pharmacological Research, 157, pp. 104822. doi:10.1016/j.phrs.2020.104822 Meta-analysis / review
https://doi.org/10.1016/j.phrs.2020.104822 - Odieka, A.E., Obuzor, G.U., Oyedeji, O.O., Gondwe, M., Hosu, Y.S. and Oyedeji, A.O (2022) 'The medicinal natural products of Cannabis sativa Linn.: a review', Molecules, 27(5), pp. 1689. doi:10.3390/molecules27051689 Meta-analysis / review
https://doi.org/10.3390/molecules27051689 - Nuutinen, T (2018) 'Medicinal properties of terpenes found in Cannabis sativa and Humulus lupulus', European Journal of Medicinal Chemistry, 157, pp. 198-228. doi:10.1016/j.ejmech.2018.07.076 Meta-analysis / review
https://doi.org/10.1016/j.ejmech.2018.07.076 - Liktor-Busa, E., Keresztes, A., LaVigne, J., Streicher, J.M. and Largent-Milnes, T.M (2021) 'Analgesic potential of terpenes derived from Cannabis sativa', Pharmacological Reviews, 73(4), pp. 98-126. doi:10.1124/pharmrev.120.000046 Meta-analysis / review
https://doi.org/10.1124/pharmrev.120.000046 - Martinelli, G., Magnavacca, A., Fumagalli, M., Dell'Agli, M., Piazza, S. and Sangiovanni, E (2021) 'Cannabis sativa and skin health: dissecting the role of phytocannabinoids', Planta Medica, 88(7), pp. 492-506. doi:10.1055/a-1420-5780 Meta-analysis / review
https://doi.org/10.1055/a-1420-5780 - Andre, C.M., Hausman, J.F. and Guerriero, G (2016) 'Cannabis sativa: the plant of the thousand and one molecules', Frontiers in Plant Science, 7, pp. 19. doi:10.3389/fpls.2016.00019 Meta-analysis / review
https://doi.org/10.3389/fpls.2016.00019 - Bonini, S.A., Premoli, M., Tambaro, S., Kumar, A., Maccarinelli, G., Memo, M. and Mastinu, A (2018) 'Cannabis sativa: a comprehensive ethnopharmacological review of a medicinal plant with a long history', Journal of Ethnopharmacology, 227, pp. 300-315. doi:10.1016/j.jep.2018.09.004 Meta-analysis / review
https://doi.org/10.1016/j.jep.2018.09.004 - Bergamaschi, M.M., Queiroz, R.H.C., Zuardi, A.W. and Crippa, J.A.S (2011) 'Safety and side effects of cannabidiol, a Cannabis sativa constituent', Current Drug Safety, 6(4), pp. 237-249. doi:10.2174/157488611798280924 Meta-analysis / review
https://doi.org/10.2174/157488611798280924 - Cerino, P., Buonerba, C., Cannazza, G. et al (2021) 'A review of hemp as food and nutritional supplement', 6(1), pp. 19--27. doi:10.1089/can.2020.0001 Preclinical
https://doi.org/10.1089/can.2020.0001 - Devinsky, O., Cross, J.H., Laux, L. et al (2017) 'Trial of cannabidiol for drug-resistant seizures in the Dravet syndrome', 376(21), pp. 2011--2020. Randomized trial
https://scholar.google.com/scholar?q=Trial%20of%20cannabidiol%20for%20drug-resistant%20seizures%20in%20the%20Dravet%20syndrome - Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
https://powo.science.kew.org - Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition - Talwar, A., Estes, E., Aparasu, R. and Reddy, D.S (2022) 'Clinical efficacy and safety of cannabidiol for pediatric refractory epilepsy indications: A systematic review and meta-analysis', Experimental Neurology, 359, pp. 114238. doi:10.1016/j.expneurol.2022.114238 Meta-analysis / review
https://doi.org/10.1016/j.expneurol.2022.114238 - Caus, M.N., Lupoae, M. and Chitescu, C.L (2026) 'Efficacy and Safety of Herbal Supplements with Anxiolytic, Antidepressant, and Sedative Action: A Review of Clinical Data and Toxicological Risks', Pharmaceuticals, 19(3), pp. 399. doi:10.3390/ph19030399 Meta-analysis / review
https://doi.org/10.3390/ph19030399
- Chandra Shekhar, H., Joshua, L. and Thomas, J.V (2024) 'Standardized Extract of Valeriana officinalis Improves Overall Sleep Quality in Human Subjects with Sleep Complaints: A Randomized, Double-Blind, Placebo-Controlled, Clinical Study', Advances in Therapy, 41(1), pp. 246-261. doi:10.1007/s12325-023-02708-6 Randomized trial
https://doi.org/10.1007/s12325-023-02708-6 - Shinjyo, N., Waddell, G. and Green, J (2020) 'Valerian Root in Treating Sleep Problems and Associated Disorders-A Systematic Review and Meta-Analysis', Journal of Evidence-Based Integrative Medicine, 25, pp. 2515690X20967323. doi:10.1177/2515690X20967323 Meta-analysis / review
https://doi.org/10.1177/2515690X20967323 - Borras, S., Martinez-Solis, I. and Rios, J.L (2021) 'Medicinal Plants for Insomnia Related to Anxiety: An Updated Review', Planta Medica, 87(10-11), pp. 738-753. doi:10.1055/a-1510-9826 Meta-analysis / review
https://doi.org/10.1055/a-1510-9826 - Nunes, A. and Sousa, M (2011) 'Use of valerian in anxiety and sleep disorders: what is the best evidence?', Acta Medica Portuguesa, 24(Suppl 4), pp. 961-966. Meta-analysis / review
https://scholar.google.com/scholar?q=Use%20of%20valerian%20in%20anxiety%20and%20sleep%20disorders%3A%20what%20is%20the%20best%20evidence%3F - Tammadon, M.R., Nobahar, M., Hydarinia-Naieni, Z., Ebrahimian, A. and others (2021) 'The Effects of Valerian on Sleep Quality, Depression, and State Anxiety in Hemodialysis Patients: A Randomized, Double-blind, Crossover Clinical Trial', Oman Medical Journal, 36(2), pp. e255. doi:10.5001/omj.2021.56 Randomized trial
https://doi.org/10.5001/omj.2021.56 - Alternative Medicine Review (2004) 'Monograph: Valeriana officinalis', Alternative Medicine Review, 9(4), pp. 438-441. Meta-analysis / review
https://scholar.google.com/scholar?q=Monograph%3A%20Valeriana%20officinalis - Soltani, A., Bahrami, F., Bahari, Z., Shankayi, Z. and others (2021) 'The effects of Valerian on sleep spindles in a model of neuropathic pain', Sleep Science, 14(Spec 2), pp. 133-139. doi:10.5935/1984-0063.20200110 Preclinical
https://doi.org/10.5935/1984-0063.20200110 - Mineo, L., Concerto, C., Patel, D., Mayorga, T. and others (2017) 'Valeriana officinalis Root Extract Modulates Cortical Excitatory Circuits in Humans', Neuropsychobiology, 75(1), pp. 46-51. doi:10.1159/000480053 Randomized trial
https://doi.org/10.1159/000480053 - Jacobs, B.P., Bent, S., Tice, J.A., Blackwell, T. and Cummings, S.R (2005) 'An internet-based randomized, placebo-controlled trial of kava and valerian for anxiety and insomnia', Medicine (Baltimore), 84(4), pp. 197-207. doi:10.1097/01.md.0000172299.72364.95 Randomized trial
https://doi.org/10.1097/01.md.0000172299.72364.95 - Alkharfy, K.M. and Frye, R.F (2007) 'Effect of valerian, valerian/hops extracts, and valerenic acid on glucuronidation in vitro', Xenobiotica, 37(2), pp. 113-123. doi:10.1080/00498250601050420 Preclinical
https://doi.org/10.1080/00498250601050420 - Garges, H.P., Varia, I. and Doraiswamy, P.M (1998) 'Cardiac complications and delirium associated with valerian root withdrawal', 280(18), pp. 1566--1567. Traditional / reference
https://scholar.google.com/scholar?q=Cardiac%20complications%20and%20delirium%20associated%20with%20valerian%20root%20withdrawal - Hoffmann, D (2003) 'Medical Herbalism'. Traditional / reference
https://scholar.google.com/scholar?q=Medical%20Herbalism - Bent, S., Padula, A., Moore, D., Patterson, M. and Mehling, W (2006) 'Valerian for sleep: a systematic review and meta-analysis', 119(12), pp. 1005--1012. doi:10.1016/j.amjmed.2006.02.026 Meta-analysis / review
https://doi.org/10.1016/j.amjmed.2006.02.026 - Francis, A.J. and Dempster, R.J (2002) 'Effect of valerian, Valeriana edulis, on sleep difficulties in children with intellectual deficits: randomised trial', 9(4), pp. 273--279. doi:10.1078/0944-7113-00110 Randomized trial
https://doi.org/10.1078/0944-7113-00110 - Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition - Ortiz, J.G., Rassi, N., Maldonado, P.M., Gonzalez-Cabrera, S. and Ramos, I (2006) 'Commercial valerian interactions with [3H]Flunitrazepam and [3H]MK-801 binding to rat synaptic membranes', Phytotherapy Research, 20(9), pp. 794-798. doi:10.1002/ptr.1960 Preclinical
https://doi.org/10.1002/ptr.1960 - Bent, S., Padula, A., Moore, D., Patterson, M. and Mehling, W (2006) 'Valerian for sleep: a systematic review and meta-analysis', The American Journal of Medicine, 119(12), pp. 1005-1012. doi:10.1016/j.amjmed.2006.02.026 Meta-analysis / review
https://doi.org/10.1016/j.amjmed.2006.02.026 - Koetter, U., Schrader, E., Kaeufeler, R. and Brattstroem, A (2007) 'A randomized, double blind, placebo-controlled, prospective clinical study to demonstrate clinical efficacy of a fixed valerian hops extract combination (Ze 91019) in patients suffering from non-organic sleep disorder', Phytotherapy Research, 21(9), pp. 847-851. doi:10.1002/ptr.2167 Randomized trial
https://doi.org/10.1002/ptr.2167 - Ghasemzadeh Rahbardar, M. and Hosseinzadeh, H (2024) 'Therapeutic potential of hypnotic herbal medicines: A comprehensive review', Phytotherapy Research, 38(6), pp. 3037-3059. doi:10.1002/ptr.8201 Meta-analysis / review
https://doi.org/10.1002/ptr.8201 - Ngan, A. and Conduit, R (2011) 'A double-blind, placebo-controlled investigation of the effects of Passiflora incarnata (passionflower) herbal tea on subjective sleep quality', Phytotherapy Research, 25(8), pp. 1153-1159. doi:10.1002/ptr.3400 Randomized trial
https://doi.org/10.1002/ptr.3400 - Practical Self Reliance 'Foraging Wild Valerian For Better Sleep'. Available at: https://practicalselfreliance.com/foraging-valerian/ Traditional / reference
https://practicalselfreliance.com/foraging-valerian/ - Dayan, A.D (2024) 'Death of Socrates: a likely case of poison hemlock (Conium maculatum) poisoning', Clinical Toxicology (Philadelphia, Pa.), 62(1), pp. 56-60. doi:10.1080/15563650.2024.2309328 Clinical study
https://doi.org/10.1080/15563650.2024.2309328 - King County Noxious Weeds (2024) 'Poison hemlock (Conium maculatum) identification and control'. Available at: https://kingcounty.gov/en/dept/dnrp/nature-recreation/environment-ecology-conservation/noxious-weeds/identification-control/poison-hemlock Traditional / reference
https://kingcounty.gov/en/dept/dnrp/nature-recreation/environment-ecology-conservation/noxious-weeds/identification-control/poison-hemlock
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.