Materia Medica
Sources
The numbered sources of the Canale glossary, to which its entries refer. Entries beyond the glossary name their own sources.
- Abiri, R., et al. (2018). Towards a better understanding of Artemisia vulgaris: botany, phytochemistry, pharmacological and biotechnological potential. Food Research International 109: 403–415. doi:10.1016/j.foodres.2018.03.072 Verified against its record · doi:10.1016/j.foodres.2018.03.072
- Agency for Toxic Substances and Disease Registry. ToxFAQs for Sulfur Dioxide. wwwn.cdc.gov/TSP. Book, seen in reviews
- Ahnfelt, N.-O., Fors, H., & Wendin, K. (2022). Making and taking theriac: an experimental and sensory approach to the history of medicine. BJHS Themes 7: 39–62. doi:10.1017/bjt.2022.6 Verified against its record · doi:10.1017/bjt.2022.6
- Aliboudhar, H., Tigrine-Kordjani, N., & Lakache, Z. (2022). Identification and evaluation of free radical scavenging activity of quinolizidine alkaloids isolated from various parts of Anagyris foetida plant. Pharmaceutical Chemistry Journal 56: 966–973. doi:10.1007/s11094-022-02734-8 Verified against its record · doi:10.1007/s11094-022-02734-8
- Aquinas, Thomas. Summa Theologiae II-II, q. 96, a. 4. Trans. Fathers of the English Dominican Province, 2nd rev. ed. (1920). newadvent.org. Book, seen in reviews
- Attaluri, A., Donahoe, R., Valestin, J., Brown, K., & Rao, S. S. (2011). Randomised clinical trial: dried plums (prunes) vs. psyllium for constipation. Alimentary Pharmacology & Therapeutics 33(7): 822–828. doi:10.1111/j.1365-2036.2011.04594.x Abstract read · the text read
- Awada, F., Hamade, K., Kassir, M., Hammoud, Z., Mesnard, F., Rammal, H., & Fliniaux, O. (2023). Laurus nobilis leaves and fruits: a review of metabolite composition and interest in human health. Applied Sciences 13(7): 4606. doi:10.3390/app13074606 Verified against its record · doi:10.3390/app13074606
- Bailey, C. J. (2017). Metformin: historical overview. Diabetologia 60(9): 1566–1576. doi:10.1007/s00125-017-4318-z Verified against its record · doi:10.1007/s00125-017-4318-z
- Bennett, P. I., Bair, Z. J., Bradshaw, A. J., & Stamets, P. (2026). Genomic characterization of the endangered medicinal polypore agarikon (Laricifomes officinalis syn. Fomitopsis officinalis). G3: Genes, Genomes, Genetics, advance article jkag237. doi:10.1093/g3journal/jkag237 Abstract read · the text read
- van den Berg, W. S. (ed.) (1917). Antidotarium Nicolaï. Leiden: E. J. Brill. Read in part · the text read
- Blanco-Salas, J., Vázquez, F. M., Hortigón-Vinagre, M. P., & Ruiz-Téllez, T. (2019). Bioactive phytochemicals from Mercurialis spp. used in traditional Spanish medicine. Plants 8(7): 193. doi:10.3390/plants8070193 Read in full · the text read
- Boutora, Y., Boussekine, S., Benslama, O., et al. (2026). Bioactive potential and COX-2 interaction of Ajuga iva (L.) Schreb. hydroalcoholic extract. Molecules 31(3): 496. doi:10.3390/molecules31030496 Verified against its record · doi:10.3390/molecules31030496
- Bouyahya, A., El Omari, N., Elmenyiy, N., Guaouguaou, F.-E., Balahbib, A., El-Shazly, M., & Chamkhi, I. (2020). Ethnomedicinal use, phytochemistry, pharmacology, and toxicology of Ajuga iva (L.) Schreb. Journal of Ethnopharmacology 258: 112875. doi:10.1016/j.jep.2020.112875 Verified against its record · doi:10.1016/j.jep.2020.112875
- Bozorgi, M., Amin, G., Shekarchi, M., & Rahimi, R. (2017). Traditional medical uses of Drimia species in terms of phytochemistry, pharmacology and toxicology. Journal of Traditional Chinese Medicine 37(1): 124–139. doi:10.1016/S0254-6272(17)30036-5 Verified against its record · doi:10.1016/s0254-6272(17)30036-5
- Brajanovska, A., & Bauer, B. (2018). Helleborus sp.: an ethnopharmacological and toxicological review. Macedonian Pharmaceutical Bulletin 64(1): 3–9. doi:10.33320/maced.pharm.bull.2018.64.01.001 Book, not indexed
- The British Pharmaceutical Codex (1911). London: Pharmaceutical Society of Great Britain. Monographs as transcribed at Henriette’s Herbal Homepage, henriettes-herb.com. Read in full · the text read
- Buchanan, A. (2020). Plant of the Month: Peony. JSTOR Daily, 29 July 2020. Book, seen in reviews
- Calderoni, M., Altare, M., Mastracci, L., Grillo, F., Cornara, L., & Pagano, A. (2021). Potential risks of plant constituents in dietary supplements: qualitative and quantitative analysis of Peganum harmala seeds. Molecules 26(5): 1368. doi:10.3390/molecules26051368 Verified against its record · doi:10.3390/molecules26051368
- Canton, M., et al. (2025). Chemical profiling of volatile and non-volatile fractions of galbanum (Ferula galbaniflua Boiss.) used in perfumery. Chemistry & Biodiversity 22(12): e01442. doi:10.1002/cbdv.202501442 Verified against its record · doi:10.1002/cbdv.202501442
- Catholic Culture. Catholic Activity: Blessed Palms in the Home. catholicculture.org. Book, not indexed
- Herbermann, C. G., et al. (eds.) (1907–1912). The Catholic Encyclopedia. New York: Robert Appleton Company. Online at newadvent.org. Articles: Agnus Dei (H. Thurston); Amulet (M. Hassett); Ash Wednesday (H. Thurston); Bells (H. Thurston); Holy Oils (H. Leclercq); Paschal Candle (H. Thurston); Scapular (J. Hilgers). Read in part · the text read
- Centers for Disease Control and Prevention. Ricin. Chemical Emergencies: Chemical Fact Sheets. cdc.gov. Book, not indexed
- Chabra, A., Monadi, T., Azadbakht, M., & Haerizadeh, S. I. (2019). Ethnopharmacology of Cuscuta epithymum: a comprehensive review on ethnobotany, phytochemistry, pharmacology and toxicity. Journal of Ethnopharmacology 231: 555–569. doi:10.1016/j.jep.2018.10.016 Verified against its record · doi:10.1016/j.jep.2018.10.016
- Code of Canon Law (1983), cann. 998–999 and 1166. vatican.va. Book, seen in reviews
- U.S. Code of Federal Regulations, 21 CFR 189.110: Calamus and its derivatives. ecfr.gov. Book, seen in reviews
- Cosmetic Ingredient Review Expert Panel (2007). Final report on the safety assessment of Ricinus communis (castor) seed oil, hydrogenated castor oil [and related ingredients]. International Journal of Toxicology 26(Suppl. 3): 31–77. Book, seen in reviews
- Cox, N., & Dannehl, K. (2007). Dictionary of Traded Goods and Commodities 1550–1820. University of Wolverhampton; British History Online. Entries: Hiera cum agarico; Lapis armenus. Read in part · the text read
- Culpeper, N. (1653). Pharmacopœia Londinensis, or, The London Dispensatory [the Royal College of Physicians’ pharmacopoeia in English, with Culpeper’s commentary]. London: Peter Cole. Text Creation Partnership edition A35381. Read in part · the text read
- DailyMed, U.S. National Library of Medicine. Compound Benzoin Tincture (Medical Chemical Corporation), label updated 1 July 2026. dailymed.nlm.nih.gov. Verified against its record · doi:10.1057/978-1-349-96157-3_5219
- Dar, P. A., Sofi, G., & Jafri, M. A. (2012). Polypodium vulgare Linn.: a versatile herbal medicine: a review. International Journal of Pharmaceutical Sciences and Research 3(6): 1616–1620. doi:10.13040/IJPSR.0975-8232.3(6).1616-20 Read in full · the text read
- Deprez, P., Sustronck, B., Muylle, E., Mijten, P., & vande Vyver, B. (1996). Two cases of Mercurialis annua poisoning in cattle. Vlaams Diergeneeskundig Tijdschrift 65(2): 92–96. Book, seen in reviews
- Dock, L. L. Text-Book of Materia Medica for Nurses, chapter “Emetics.” Online at chestofbooks.com. Verified against its record · doi:10.1097/00000446-191602000-00018
- Drugs and Lactation Database (LactMed). Borage. Bethesda (MD): National Institute of Child Health and Human Development; updated 15 February 2021. ncbi.nlm.nih.gov/books/NBK501790. Book, seen in reviews
- Duncan, H. Aloes. In J. Hastings (ed.), Hastings’ Dictionary of the New Testament. Online at studylight.org. Book, not indexed
- EFSA Panel on Food Additives and Nutrient Sources added to Food (2016). Scientific opinion on the re-evaluation of gold (E 175) as a food additive. EFSA Journal 14(1): 4362. doi:10.2903/j.efsa.2016.4362 Standard reference work
- Elisa (2024). I seni e il pane di Sant’Agata: a Castelvecchio come da tradizione. ilGerme, 2 February 2024. Book, not indexed
- Elkhateeb, W. A., Daba, G. M., Elnahas, M. O., & Thomas, P. W. (2019). Fomitopsis officinalis mushroom: ancient gold mine of functional components and biological activities for modern medicine. Egyptian Pharmaceutical Journal 18(4): 285–289. doi:10.4103/epj.epj_46_19 Verified against its record · doi:10.4103/epj.epj_46_19
- Encyclopaedia Britannica, online edition, britannica.com. Articles: Ambergris; Aristolochiaceae; Asafetida; Azurite; Castor-oil plant; Civet; Dragon’s blood; Garden cress; Jet; Kermes; Laudanum; Lye; Monemvasía; Musk; Precious coral; Saltpetre; Sulfur dioxide; Tartar emetic; Tropaeolum. Book, seen in reviews
- Erzbistum München und Freising (2026). Gottesdienste und Kräutersegnungen zu Mariä Himmelfahrt (press release), 7 August 2026. Book, seen in reviews
- ESCOP (2021). Angelicae radix (angelica root). ESCOP Monographs. European Scientific Cooperative on Phytotherapy. escop.com. Verified against its record · doi:10.1007/s11418-020-01438-1
- European Medicines Agency, Committee on Herbal Medicinal Products (HMPC). Herbal monographs, assessment reports and public statements, ema.europa.eu, cited under the herb concerned: aniseed (summary, EMA/305345/2016); Aristolochia (public statement, EMEA/HMPC/138381/2005); asarone (public statement, EMEA/HMPC/139215/2005); caraway (EMA/HMPC/715092/2013); centaury (EMA/HMPC/277493/2015); chicory root (assessment report, EMA/HMPC/113041/2010); cinnamon (EMA/HMPC/246774/2009); clove (assessment report, EMA/HMPC/534946/2010); ethanol in herbal products (reflection paper, EMA/HMPC/85114/2008); fennel (EMEA/HMPC/372839/2016, Rev. 1, 2024); fumitory (draft assessment report, EMA/HMPC/367013/2021); greater celandine (public statement, EMA/HMPC/743927/2010); hops (EMA/HMPC/682384/2013); horehound (EMA/HMPC/604271/2012); mallow (assessment report, EMA/HMPC/749518/2016); marshmallow root (Althaeae radix); melissa (summary, EMA/HMPC/310761/2013); myrrh (assessment report and monograph, EMA/HMPC/96910/2010 and 96911/2010); peppermint oil (assessment report, EMEA/HMPC/349465/2006); pyrrolizidine alkaloids (public statement, EMA/HMPC/893108/2011); rhubarb (EMA/HMPC/113700/2019); sage (Salviae officinalis folium); wormwood (EMA/HMPC/751490/2016). Read in full · the text read
- Feedipedia (animal feed resources information system). Moringa (Moringa oleifera). feedipedia.org. Book, not indexed
- Felter, H. W., & Lloyd, J. U. (1898). King’s American Dispensatory. Monographs as transcribed at Henriette’s Herbal Homepage, henriettes-herb.com, cited under the drug concerned. Read in full · the text read
- Florian, Ks. [Fr.]. Gromnica: świeca nieco zapomniana. Niedziela.pl. Book, not indexed
- U.S. Food and Drug Administration (2002). Status of certain additional over-the-counter drug category II and III active ingredients: final rule. Federal Register 67: 31125–31127, 9 May 2002. Read in full · the text read
- U.S. Food and Drug Administration (2020). Import Alert 54-10: Detention without physical examination of bulk/finished dietary supplement products containing aristolochic acid. Book, not indexed
- Frazão, D. F., et al. (2022). Labdanum resin from Cistus ladanifer L.: a natural and sustainable ingredient for skin care cosmetics with relevant cosmeceutical bioactivities. Plants 11(11): 1477. doi:10.3390/plants11111477 Verified against its record · doi:10.3390/plants11111477
- Gemological Institute of America. Pearl. gia.edu. Book, not indexed
- Georgiev, Y. N., Ognyanov, M. H., & Denev, P. N. (2023). Phytochemical composition and therapeutic potential of Bistorta major Gray: a review. In S. Sotirov et al. (eds.), Recent Contributions to Bioinformatics and Biomedical Sciences and Engineering, Lecture Notes in Networks and Systems 658: 167–191. Cham: Springer. doi:10.1007/978-3-031-31069-0_17 Verified against its record · doi:10.1007/978-3-031-31069-0_17
- German Federal Institute for Risk Assessment (BfR) (2012). FAQ on coumarin in cinnamon and other foods. Updated 27 September 2012. bfr.bund.de. Book, seen in reviews
- Ghazizadeh, J., Sadigh-Eteghad, S., Marx, W., et al. (2021). The effects of lemon balm (Melissa officinalis L.) on depression and anxiety in clinical trials: a systematic review and meta-analysis. Phytotherapy Research 35(12): 6690–6705. doi:10.1002/ptr.7252 Verified against its record · doi:10.1002/ptr.7252
- Gopalakrishnan, L., Doriya, K., & Kumar, D. S. (2016). Moringa oleifera: a review on nutritive importance and its medicinal application. Food Science and Human Wellness 5(2): 49–56. doi:10.1016/j.fshw.2016.04.001 Verified against its record · doi:10.1016/j.fshw.2016.04.001
- Grasska, D. (2026). Unpacking faith: gifts of Epiphany. The Southern Cross, 1 January 2026. Book, not indexed
- Grieve, M. (1931). A Modern Herbal. Online edition, botanical.com, cited under the plant concerned. Read in part · the text read
- Guerriaud, M. (2026). L’antimoine : un remède anticlérical ? VIDAL, 17 February 2026. vidal.fr. Book, not indexed
- Gupta, A. K., & Nicol, K. (2004). The use of sulfur in dermatology. Journal of Drugs in Dermatology 3(4): 427. Verified against its record · PMID 15303787
- Gupta, D., Bleakley, B., & Gupta, R. K. (2008). Dragon’s blood: botany, chemistry and therapeutic uses. Journal of Ethnopharmacology 115(3): 361–380. doi:10.1016/j.jep.2007.10.018 Verified against its record · doi:10.1016/j.jep.2007.10.018
- Hamidpour, R., Hamidpour, S., Hamidpour, M., & Shahlari, M. (2013). Frankincense (Rǔ Xiāng; Boswellia species): from the selection of traditional applications to the novel phytotherapy for the prevention and treatment of serious diseases. Journal of Traditional and Complementary Medicine 3(4): 221–226. doi:10.4103/2225-4110.119723 Verified against its record · doi:10.4103/2225-4110.119723
- Hao, Y., Li, J., & Shi, L. (2021). A carvacrol-rich essential oil extracted from oregano (Origanum vulgare ‘Hot & Spicy’) exerts potent antibacterial effects against Staphylococcus aureus. Frontiers in Microbiology 12: 741861. doi:10.3389/fmicb.2021.741861 Verified against its record · doi:10.3389/fmicb.2021.741861
- Heatherington, K., & OSV News (2026). “Remember you are dust”: why people fill the pew on Ash Wednesday. National Catholic Reporter, 18 February 2026. Book, seen in reviews
- Homes, V. (1999). On the Scent: Conserving Musk Deer. The Uses of Musk and Europe’s Role in its Trade. Brussels: TRAFFIC Europe. Book, seen in reviews
- Hudson, B. (2017). Theriac: an ancient brand? Wellcome Collection, 18 October 2017. wellcomecollection.org. Read in full · the text read
- Hussey, K. (2018). “May God protect us from such drugs and physicians!”: a 17th century antimony cup. Royal College of Physicians Museum blog, 27 July 2018. Book, not indexed
- Innocenti, G., Dall’Acqua, S., Viola, G., & Loi, M. C. (2006). Cytotoxic constituents from Anagyris foetida leaves. Fitoterapia 77(7–8): 595–597. doi:10.1016/j.fitote.2006.06.012 Verified against its record · doi:10.1016/j.fitote.2006.06.012
- International Agency for Research on Cancer (2002). Aristolochia species and aristolochic acids. IARC Monographs 82, Summary and Evaluation. inchem.org. Standard reference work
- Ismail, J., Shebaby, W. N., Daher, J., Boulos, J. C., Taleb, R., Daher, C. F., & Mroueh, M. (2024). Phytochemistry and pharmacology of wild carrot (Daucus carota). Encyclopedia MDPI, entry 56267, based on Plants 13(1): 93. doi:10.3390/plants13010093 Verified against its record · doi:10.3390/plants13010093
- Jan, S., Khaliq, T., Sultan, P., Hassan, Q. P., Gupta, S., & Ahmed, Z. (2026). Salvia sclarea: a comprehensive review of its pharmacology, phytochemistry, ethnobotany and traditional uses. Current Plant Biology 47: 100604. doi:10.1016/j.cpb.2026.100604 Verified against its record · doi:10.1016/j.cpb.2026.100604
- Jaradat, N. (2020). Phytochemistry, traditional uses and biological effects of the desert plant Styrax officinalis L. Journal of Arid Environments 182: 104253. doi:10.1016/j.jaridenv.2020.104253 Verified against its record · doi:10.1016/j.jaridenv.2020.104253
- Jocks, I. T. (2020). Scribonius Largus’ Compounding of Drugs (Compositiones medicamentorum): Introduction, Translation, and Medico-historical Comments, vol. II. PhD thesis, University of Glasgow. Read in part · the text read
- Knight, M. (2023). Palm Sunday: history and symbolism of sacramental palms. Florida Catholic / Archdiocese of Miami, 27 March 2023. Book, not indexed
- Kosiarski, P. (2022). Gromnica. Świeca od zadań specjalnych. Deon.pl, 1 February 2022. Book, not indexed
- Kujawska, M., & Svanberg, I. (2019). From medicinal plant to noxious weed: Bryonia alba L. (Cucurbitaceae) in northern and eastern Europe. Journal of Ethnobiology and Ethnomedicine 15: 22. doi:10.1186/s13002-019-0303-6 Verified against its record · doi:10.1186/s13002-019-0303-6
- Kulinarisches Erbe der Schweiz / Patrimoine culinaire suisse. Agathabrot. patrimoineculinaire.ch. Book, not indexed
- Kumar, R., et al. (2024). Ferula assa-foetida L., an important Central and South Asian traditional spice and medicinal herb: a comprehensive review. Journal of Applied Research on Medicinal and Aromatic Plants 41: 100548. doi:10.1016/j.jarmap.2024.100548 Verified against its record · doi:10.1016/j.jarmap.2024.100548
- Kunc, N., Hudina, M., Mikulič-Petkovšek, M., Bavcon, J., Ravnjak, B., & Osterc, G. (2023). Detailed metabolic characterization of flowers and hips of Rosa gallica L. grown in open nature. Plants 12(16): 2979. doi:10.3390/plants12162979 Verified against its record · doi:10.3390/plants12162979
- Larkin, D. The Medieval Garden Enclosed (blog), The Metropolitan Museum of Art, The Cloisters: Herb Paris (23 June 2010); Salvia, Save Us (7 September 2010); Beneficent Betony (24 June 2011). Book, seen in reviews
- Leemans, I. (2024). Civet. Encyclopedia of Smell History and Heritage (Odeuropa). Read in full · the text read
- Li, X.-L., Sun, Y.-P., Wang, M., Wang, Z.-B., & Kuang, H.-X. (2024). Alkaloids in Chelidonium majus L.: a review of its phytochemistry, pharmacology and toxicology. Frontiers in Pharmacology 15: 1440979. doi:10.3389/fphar.2024.1440979 Verified against its record · doi:10.3389/fphar.2024.1440979
- Liturgy Office of the Catholic Bishops’ Conference of England and Wales. Book of Blessings (resource sheet). liturgyoffice.org.uk. Book, not indexed
- LiverTox: Clinical and Research Information on Drug-Induced Liver Injury. Bethesda (MD): National Institute of Diabetes and Digestive and Kidney Diseases. Entries: Germander (updated 12 March 2018); Pennyroyal Oil (updated 28 March 2020); Senna (updated 1 April 2020). Abstract read · the text read
- Luo, P., Feng, X., Liu, S., & Jiang, Y. (2024). Traditional uses, phytochemistry, pharmacology and toxicology of Ruta graveolens L.: a critical review and future perspectives. Drug Design, Development and Therapy 18: 6459–6485. doi:10.2147/DDDT.S494417 Verified against its record · doi:10.2147/dddt.s494417
- Maieron, M. A. (2018). On the hellebore trail: an anthropological research into madness. Medicina Historica 2(1): 5–18. Book, not indexed
- Mayo Clinic. Coal tar (topical route): description. mayoclinic.org. Book, not indexed
- McNamara, E. (2010). Extraordinary Form; Book of Blessings. Liturgy Q&A, 2 and 16 November 2010. EWTN Library, ewtn.com. Verified against its record · doi:10.1159/000287797
- Mehmood, M. H., & Gilani, A. H. (2010). Pharmacological basis for the medicinal use of black pepper and piperine in gastrointestinal disorders. Journal of Medicinal Food 13(5): 1086–1096. doi:10.1089/jmf.2010.1065 Abstract read · the text read
- Memorial Sloan Kettering Cancer Center, Integrative Medicine. Rhubarb. Last updated 8 November 2022. mskcc.org. Book, seen in reviews
- Michl, J., Bello, O., Kite, G. C., Simmonds, M. S. J., & Heinrich, M. (2017). Medicinally used Asarum species: high-resolution LC-MS analysis of aristolochic acid analogs and in vitro toxicity screening in HK-2 cells. Frontiers in Pharmacology 8: 215. doi:10.3389/fphar.2017.00215 Verified against its record · PMID 28588481
- Miroddi, M., Navarra, M., Quattropani, M. C., Calapai, F., Gangemi, S., & Calapai, G. (2014). Systematic review of clinical trials assessing pharmacological properties of Salvia species on memory, cognitive impairment and Alzheimer’s disease. CNS Neuroscience & Therapeutics 20(6): 485–495. doi:10.1111/cns.12270 Verified against its record · doi:10.1111/cns.12270
- Mosleh, G., Zaeri, M., Hemmati, S., & Mohagheghzadeh, A. (2023). A comprehensive review on rhubarb astringent/laxative actions and the role of aquaporins as hub genes. Phytochemistry Reviews 22: 565–586. doi:10.1007/s11101-022-09851-y Verified against its record · doi:10.1007/s11101-022-09851-y
- Mwangi, R. W., Macharia, J. M., Wagara, I. N., & Bence, R. L. (2021). The medicinal properties of Cassia fistula L.: a review. Biomedicine & Pharmacotherapy 144: 112240. doi:10.1016/j.biopha.2021.112240 Verified against its record · doi:10.1016/j.biopha.2021.112240
- National Center for Complementary and Integrative Health, NIH. Usefulness and Safety pages: Boswellia (April 2025); Chamomile (November 2024); St. John’s Wort (May 2025). nccih.nih.gov. Book, not indexed
- National Institute for Occupational Safety and Health. NIOSH Pocket Guide to Chemical Hazards: Turpentine. cdc.gov/niosh. Book, seen in reviews
- Nongmaithem, B. D., Mouatt, P., Smith, J., Rudd, D., Russell, M., Sullivan, C., & Benkendorff, K. (2017). Volatile and bioactive compounds in opercula from Muricidae molluscs supports their use in ceremonial incense and traditional medicines. Scientific Reports 7: 17404. doi:10.1038/s41598-017-17551-3 Verified against its record · doi:10.1038/s41598-017-17551-3
- North Carolina State Extension. Artemisia abrotanum. North Carolina Extension Gardener Plant Toolbox. plants.ces.ncsu.edu. Book, not indexed
- Omidsalar, M. (1998). Esfand. Encyclopaedia Iranica VIII(6): 583–584. Book, seen in reviews
- Pantano, F., Mannocchi, G., Marinelli, E., Gentili, S., Graziano, S., Busardò, F. P., & di Luca, N. M. (2017). Hepatotoxicity induced by greater celandine (Chelidonium majus L.): a review of the literature. European Review for Medical and Pharmacological Sciences 21(1 Suppl.): 46–52. Book, seen in reviews
- Peterson, B., & Nguyen, H. (2023). St. John’s Wort. StatPearls. Treasure Island (FL): StatPearls Publishing; updated 16 May 2023. Book, seen in reviews
- Pliny the Elder. The Natural History. Trans. J. Bostock and H. T. Riley. London, 1855. Perseus Digital Library, Tufts University. Cited by book and chapter. Primary text
- Pronczuk, J. (1989). Ruta graveolens L. Poisons Information Monograph PIM 475. International Programme on Chemical Safety. inchem.org. Book, seen in reviews
- Quan, N. V., Xuan, T. D., & Teschke, R. (2020). Potential hepatotoxins found in herbal medicinal products: a systematic review. International Journal of Molecular Sciences 21(14): 5011. doi:10.3390/ijms21145011 Verified against its record · doi:10.3390/ijms21145011
- Quatrehomme, G., Bertrand, F., Chauvet, C., & Ollier, A. (1993). Intoxication from Veratrum album. Human & Experimental Toxicology 12(2): 111–115. doi:10.1177/096032719301200203 Verified against its record · doi:10.1177/096032719301200203
- Rakov, V. A., & Uman, M. A. (2003). Lightning: Physics and Effects. Cambridge University Press, ch. 1, p. 2. Verified against its record · doi:10.1017/cbo9781107340886
- Razack, S., Kandikattu, H. K., Venuprasad, M. P., Amruta, N., Khanum, F., Chuttani, K., & Mishra, A. K. (2018). Anxiolytic actions of Nardostachys jatamansi via GABA benzodiazepine channel complex mechanism and its biodistribution studies. Metabolic Brain Disease 33(5): 1533–1549. doi:10.1007/s11011-018-0261-z Verified against its record · doi:10.1007/s11011-018-0261-z
- Readal, M. (2021). Horehound: Herb of the Month. The Herb Society of America Blog, 6 September 2021. Book, not indexed
- religion.ORF.at (2026). Letztes katholisches Dogma: Mariä Himmelfahrt, 14 August 2026. Book, seen in reviews
- Ren, Y., Xian, X., & Chen, F. (2025). Acute Veratrum poisoning: a case report and literature review. Asploro Journal of Biomedical and Clinical Case Reports 8(2): 173–179. doi:10.36502/2025/ASJBCCR.6408 Verified against its record · doi:10.36502/2025/asjbccr.6408
- Retief, F., Stulting, A., & Cilliers, L. (2008). The eye in antiquity. South African Medical Journal 98(9): 697–700. Verified against its record · PMID 19115749
- Royal Botanic Gardens, Kew. Plants of the World Online. powo.science.kew.org (accessed September 2026). Book, seen in reviews
- Samuelsen, A. B. (2000). The traditional uses, chemical constituents and biological activities of Plantago major L.: a review. Journal of Ethnopharmacology 71(1–2): 1–21. doi:10.1016/s0378-8741(00)00212-9 Verified against its record · doi:10.1016/s0378-8741(00)00212-9
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Each source carries the result of its check on October 1, 2026; see Verification.