Pernilla’s botanical collection
The Natural Library
Begin with an herb, mushroom, food or traditional preparation. Each entry preserves historical context, explains common forms, connects related questions and reports what modern research adds.
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The original item collection, organized for faster browsing and deeper cross-linking.
SGSeeds & grainsA food-first guide to whole grains, culinary seeds, fiber, processing, preparation and special-diet considerations.
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NTNuts & treesNuts, barks and tree-derived ingredients used across food traditions.
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LTLeaves & teasAromatic leaves and gentle infusions for daily rituals.
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MFMushrooms, fungi & myceliumsA clear guide to culinary mushrooms, traditional species, fruiting-body and mycelium products, extracts, evidence and safety.
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SHSpices & herbsKitchen ingredients with deep traditional roots.
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BFBerries & fruitsA food-first guide to whole fruits, berries, peels, rinds, seeds, extracts, traditional preparations and safety.
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VGVegetables & greensPractical ways to know what is already in the grocery basket.
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OWOther wondersNatural ingredients that do not fit neatly in one category.
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FFFermented foodsA guide to fermented and cultured foods -- traditional preparation, live-culture content, and what current research supports.
Explore category →Natural Library A–Z
Explore every published entry
Spices & herbsGinger
Zingiber officinaleA warming culinary rhizome traditionally used for digestion and occasional nausea.
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Spices & herbsTurmeric
Curcuma longaA golden rhizome used in food traditions and studied for its curcuminoid compounds.
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Berries & fruitsElderberry
Sambucus nigraA dark berry with a long place in European seasonal wellness traditions.
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Leaves & teasPeppermint
Mentha × piperitaPeppermint leaf tea, culinary leaf, enteric-coated oil and essential oil are different forms with different evidence and safety considerations.
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Seeds & grainsOats
Avena sativaOats are the grains of Avena sativa, eaten as a whole-grain food and used in distinct herbal and topical preparations.
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Mushrooms, fungi & myceliumsLion's mane mushroom
Hericium erinaceusLion's mane is an edible mushroom and supplement ingredient; early cognition studies are small and tied to particular products.
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Mushrooms, fungi & myceliumsReishi mushroom
Ganoderma species (source-specific identity required)Reishi, also called lingzhi, is sold as slices, decoctions, powders, extracts, capsules and spores; these products are not interchangeable.
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Mushrooms, fungi & myceliumsCordyceps
Cordyceps militaris and source-specific fungal materialsCordyceps products vary by species, fungal material and manufacturing method, so a generic label does not identify what was studied.
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Leaves & teasMatcha and green tea
Camellia sinensisMatcha, brewed green tea and concentrated green-tea extracts create different exposures and should not share one evidence or safety claim.
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Leaves & teasHibiscus tea
Hibiscus sabdariffaHibiscus tea is usually a tart infusion of dried H. sabdariffa calyces; flowers, syrups, concentrates and extracts are not equivalent.
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Leaves & teasMulberry leaf tea
Morus alba (verify source and product species)Brewed mulberry leaf tea, leaf powder and standardized extracts are distinct; the clearer glucose research concerns particular extracts.
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Nuts & treesPistachios
Pistacia veraPistachios are a food-first tree nut whose nutrition varies with serving, roasting, oil, salt and flavor coatings.
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Spices & herbsSumac
Rhus species (culinary species must be verified)Sumac has culinary, historical or practitioner context documented in the original Holistic FAQs collection. This page preserves that record while separating forms, modern research and safety.
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Other wondersCommon mallow
Malva sylvestrisCommon mallow has culinary, historical or practitioner context documented in the original Holistic FAQs collection. This page preserves that record while separating forms, modern research and safety.
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Seeds & grainsFlaxseed
Linum usitatissimumFlaxseed has culinary, historical or practitioner context documented in the original Holistic FAQs collection. This page preserves that record while separating forms, modern research and safety.
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Berries & fruitsBlueberries
Vaccinium speciesBlueberries has culinary, historical or practitioner context documented in the original Holistic FAQs collection. This page preserves that record while separating forms, modern research and safety.
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Seeds & grainsChia seed
Salvia hispanicaChia seed has culinary, historical or practitioner context documented in the original Holistic FAQs collection. This page preserves that record while separating forms, modern research and safety.
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Spices & herbsCinnamon
Cinnamomum speciesCinnamon has culinary, historical or practitioner context documented in the original Holistic FAQs collection. This page preserves that record while separating forms, modern research and safety.
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Spices & herbsCardamom
Elettaria cardamomumCardamom has culinary, historical or practitioner context documented in the original Holistic FAQs collection. This page preserves that record while separating forms, modern research and safety.
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Berries & fruitsAmla (Indian gooseberry)
Phyllanthus emblicaAmla (Indian gooseberry) has culinary, historical or practitioner context documented in the original Holistic FAQs collection. This page preserves that record while separating forms, modern research and safety.
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Spices & herbsFenugreek
Trigonella foenum-graecumFenugreek has culinary, historical or practitioner context documented in the original Holistic FAQs collection. This page preserves that record while separating forms, modern research and safety.
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Other wondersBobinsana
Calliandra angustifolia (identity must be source-verified)Bobinsana has culinary, historical or practitioner context documented in the original Holistic FAQs collection. This page preserves that record while separating forms, modern research and safety.
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Leaves & teasPassionflower
Passiflora incarnataPassionflower has culinary, historical or practitioner context documented in the original Holistic FAQs collection. This page preserves that record while separating forms, modern research and safety.
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Berries & fruitsWatermelon
Citrullus lanatusWatermelon has culinary, historical or practitioner context documented in the original Holistic FAQs collection. This page preserves that record while separating forms, modern research and safety.
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Other wondersTongkat ali
Eurycoma longifoliaTongkat ali has culinary, historical or practitioner context documented in the original Holistic FAQs collection. This page preserves that record while separating forms, modern research and safety.
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Other wondersChicory root
Cichorium intybusChicory root has culinary, historical or practitioner context documented in the original Holistic FAQs collection. This page preserves that record while separating forms, modern research and safety.
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Seeds & grainsBarley
Hordeum vulgareBarley is an ancient cereal grain used in porridges, breads, soups, drinks and malted foods; its form determines whole-grain status, fiber context and suitability.
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Seeds & grainsQuinoa
Chenopodium quinoaQuinoa is an Andean seed and pseudocereal with deep Indigenous food history, commonly cooked like a grain and available as whole seed, flakes, flour and processed foods.
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Other wondersCalendula
Calendula officinalisA traditional wound-care flower with mixed but real modern evidence: helpful in some skin-inflammation and radiation-dermatitis trials, not shown to help burns specifically.
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Other wondersPlantain Leaf
Plantago major, Plantago lanceolataA common lawn "weed" with a very long folk-medicine reputation for insect bites and minor skin irritation -- strong lab-level pharmacology, but almost no human clinical trials specific to that use.
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Leaves & teasGymnema Sylvestre
Gymnema sylvestreAn Ayurvedic "sugar destroyer" leaf with real meta-analytic support for blood sugar control, not just a folk reputation.
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Spices & herbsGinseng
Panax ginseng (Korean/Asian red ginseng); Panax quinquefolius (American ginseng)Korean red ginseng has real meta-analytic trial support for erectile function, plus more mixed evidence for energy and cognitive function.
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Other wondersHoney
Produced by Apis speciesA Cochrane-reviewed wound-care agent for burns specifically, and a traditional food and remedy far more broadly.
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Other wondersBerberine
Compound found in Berberis vulgaris, Coptis chinensis, Hydrastis canadensis, and related plantsA bioactive plant alkaloid working through the same cellular pathway as metformin.
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Vegetables & greensBitter Melon
Momordica charantiaCenturies of traditional use for blood sugar — modern trials are honestly underwhelming.
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Spices & herbsGarlic
Allium sativumStrong meta-analytic support for lowering blood pressure — comparable to first-line medication in a majority of hypertensive patients.
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Other wondersChromium
The single best-evidenced complementary intervention in this cluster, per one major review.
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Other wondersMagnesium
A deficiency-correction story rather than a general standalone intervention.
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Other wondersAlpha-Lipoic Acid
Real evidence for insulin sensitivity — a distinct, weaker question from its popular neuropathy use.
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Berries & fruitsPineapple
Ananas comosusThe source of bromelain — strong clinical evidence for wound debridement, plus a real Mexican fermentation tradition.
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Other wondersL-Citrulline
An amino acid the body converts into L-arginine, the raw material for nitric oxide — the same vessel-relaxing signal PDE5 inhibitor drugs work by preserving.
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Other wondersL-Arginine
The direct precursor the body uses to make nitric oxide, with a genuinely solid double-blind RCT in vasculogenic ED.
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Other wondersAshwagandha
Withania somniferaAn Ayurvedic adaptogen traditionally taken as a bedtime spiced-milk tonic, with real trial support tied to its cortisol-lowering effect.
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Spices & herbsSaffron
Crocus sativusThe world's most expensive spice, with a genuinely distinctive niche: real double-blind trial support for reversing antidepressant-induced sexual dysfunction.
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Other wondersHorny Goat Weed
Epimedium spp.Over 2,000 years of TCM use — with a real lab-documented PDE5-inhibiting mechanism and essentially no human trials to confirm it works in people.
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Vegetables & greensMaca
Lepidium meyeniiA cruciferous Andean root, historically fuel for Inca warriors and still a staple food, not just a supplement.
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Other wondersShilajit
A Himalayan mineral resin where the traditional purification process is arguably more important than the evidence itself.
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Berries & fruitsPomegranate
Punica granatumA fertility and vitality symbol across nearly every ancient Mediterranean culture — with genuinely mixed modern evidence.
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Other wondersTribulus Terrestris
Tribulus terrestrisUsed traditionally for both men and women — the strongest modern evidence is specifically in women with diagnosed low desire, not the male-testosterone claim it's usually marketed on.
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Nuts & treesGinkgo Biloba
Ginkgo bilobaTwo genuinely separate traditional uses — a documented-toxic food (the seed) and a much safer, better-studied medicine (the leaf extract) — worth keeping clearly distinct.
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Other wondersZinc
A clear mechanistic role in testosterone production — genuinely useful for correcting deficiency, not a general booster.
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Other wondersBlack Cohosh
Actaea racemosa (formerly Cimicifuga racemosa)The most extensively studied single menopause herb — and a lesson in how "most studied" doesn't mean "most settled."
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Leaves & teasRed Clover
Trifolium pratenseA common meadow plant whose isoflavones give it one of the more consistent modern evidence records for hot flashes.
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Vegetables & greensSoy Isoflavones
One of the largest evidence bases in this whole guide — plus a genuinely fascinating gut-microbiome nuance most content misses.
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Other wondersDong Quai
Angelica sinensis"Female ginseng" — disappointing alone in Western trials, meaningfully better in the combination formulas it was actually designed for.
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Leaves & teasSage
Salvia officinalisAn everyday culinary herb whose Latin name literally means "to heal" — real modern trial support specifically matching its traditional sweating-related reputation.
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Other wondersEvening Primrose Oil
Oenothera biennisReal Indigenous traditional use of the whole plant — and a modern, oil-specific supplement industry with weaker hot-flash evidence than its popularity suggests.
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Other wondersShatavari
Asparagus racemosusThe "queen of herbs" in Ayurveda — one of the broadest-symptom-coverage clinical trials in this whole cluster.
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Other wondersWild Yam
Dioscorea villosaA genuinely important myth-correction: the "natural progesterone" claim rests on chemistry the human body cannot perform.
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Seeds & grainsPsyllium
Plantago ovataCenturies of South Asian traditional use (isabgol) and a genuinely solid modern trial record across cholesterol, constipation, and blood sugar.
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Other wondersSlippery Elm & Marshmallow Root
Ulmus rubra / Althaea officinalisTwo unrelated plants from two continents that traditional herbalism independently arrived at for the same purpose — soothing irritated digestive tissue with mucilage.
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Other wondersLicorice Root (DGL)
Glycyrrhiza glabraOne of the oldest documented medicinal plants, specifically processed in its DGL form to remove the compound responsible for licorice's most dangerous side effect.
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Other wondersProbiotics
"Probiotics" as a blanket category is too broad to be useful — the real, reproducible evidence is strain-specific.
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Nuts & treesWillow Bark
Salix spp. (Salix alba/white willow most common)The direct botanical ancestor of aspirin — documented across three independent ancient civilizations, and still genuinely effective in its own right.
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Other wondersGlucosamine & Chondroitin
Likely the best-selling joint supplement category in the world — the recent evidence doesn't match the reputation.
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Other wondersAlgae Oil (Plant-Based Omega-3)
The direct, plant-based source of the same long-chain omega-3s found in fish oil — because algae, not fish, is where they actually originate.
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Berries & fruitsTart Cherry
Prunus cerasus (Montmorency variety most studied)A specific tart cherry variety with real, targeted clinical trial support for gout specifically — more precise than the broad folk "cherries help arthritis" claim.
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Other wondersArnica
Arnica montanaA yellow Alpine wildflower with centuries of European folk use for bruising — topical only, and a genuinely different product from homeopathic arnica despite the shared name.
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Leaves & teasChamomile
Matricaria chamomillaA gentle, familiar tea with real, if modest, clinical trial support specifically for generalized anxiety disorder.
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Leaves & teasLavender
Lavandula angustifoliaOne of the stronger single-herb results in this entire cluster — a standardized oral oil preparation, not aromatherapy.
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Leaves & teasLemon Balm
Melissa officinalisUsed as a muscle relaxant and calming remedy across multiple traditions for hundreds of years.
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Other wondersKava
Piper methysticumGenuine Cochrane-reviewed anxiolytic efficacy and a genuine, FDA-flagged liver-toxicity risk — both given equal weight, the same standard applied to yohimbine.
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Leaves & teasWild Lettuce
Lactuca virosa; Lactuca serriolaA wild Asteraceae plant nicknamed "lettuce opium" in 19th-century pharmacy — animal studies show real analgesic and sedative activity, though human trials remain absent.
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Other wondersCalamine
Zinc oxide with a small amount of ferric oxide (a mineral compound, not a plant)A zinc oxide mineral lotion with established, FDA-recognized use as a topical antipruritic for minor, intact-skin itch.
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Other wondersCool Compress
Not applicable -- a technique, not a plant or substanceA cool, damp cloth applied to itchy or irritated skin -- an AAD-recommended first-line comfort measure with a real physiological mechanism behind it.
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Other wondersAloe Vera
Aloe vera (syn. Aloe barbadensis)A succulent whose clear inner-leaf gel has real meta-analytic support for speeding burn healing, distinct from the irritant latex layer just beneath the skin.
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Other wondersFragrance-Free Barrier Care
Not applicable -- a product-selection principle, not a plant or substanceChoosing genuinely fragrance-free moisturizing products, applied while skin is damp, to support skin barrier repair and reduce irritation risk.
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Fermented foodsApple Cider Vinegar
Modest but real meta-analytic support for post-meal blood sugar.
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Nuts & treesYohimbine (Yohimbe Bark)
Pausinystalia yohimbeReal clinical history predating sildenafil, real cardiovascular risk, and a documented supplement-quality problem — treated with equal weight to all three.
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Berries & fruitsChasteberry
Vitex agnus-castusA striking historical irony: used by ancient monks to suppress libido, used by modern women for hormonal balance.
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Fermented foodsKimchi
A foundational Korean fermented dish over a thousand years old, directly implicated in a real Stanford gut-microbiome clinical trial.
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Fermented foodsKefir
A tangy fermented milk drink from the Caucasus Mountains, traditionally passed down through families as living "grains" — one of the few fermented foods with its own dedicated human trial evidence.
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Fermented foodsSauerkraut
The simplest fermented food on this site — just cabbage and salt — with real dedicated research and an honest recent non-replication finding.
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Nuts & treesBoswellia (Indian Frankincense)
Boswellia serrataThe resin behind one of the ancient world's most valuable trade goods — genuinely strong modern trial support for osteoarthritis, comparable to NSAIDs with fewer side effects.
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Leaves & teasStinging Nettle
Urtica dioicaA common wild plant with a real, well-understood sting mechanism and, separately, genuine clinical evidence for its root (prostate symptoms) and leaf (allergy symptoms) as internal preparations.
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