Yesterday's Plants - Today's Medicines
Certain populations of a plant species may be more potent than others, and plant parts vary in their concentrations of medicinal compounds. The underground parts of plants, such as roots, rhizomes, and bulbs, are often the most potent part of a medicinal plant, where the secondary compounds produced by the plant metabolism are most concentrated. Organic compounds could by synthesized by chemists in the laboratory. Early in the nineteenth century, plants were no longer the number source for effective medicines. Some plant compounds still must come directly from plants because they have not yet been successfully synthesized, including morphine, cocaine, ergotamine, podophyllin, and digitalis. Other plant compounds such as atropine and reserpine are too expensive to synthesize, so pharmaceutical companies continue to rely on natural sources.
About eighty percent of people in developing countries still rely on medicinal plant-based traditional medicines for their primary health care. In the U.S., about twenty-five percent of prescriptions are filled with drugs whose active ingredients are extracted or derived from plants. Several of the drugs sold today are simple synthetic modifications or copies of the naturally obtained substances.
Approximately 120 prescription drugs are derived from plants, and these drugs come from only 95 plant species. Today there are at least 120 distinct chemical substances derived from plants that are considered as important drugs currently in use in one or more countries in the world. These chemical substances are shown in the table below. We tend to think of prescription and cancer treatment drugs as coming from new medical plant discoveries, but there have been many drugs and chemicals that are commonplace now that we don't think much as "wonder drugs" any longer that were derived from medicinal plants. The following is a short list of some over-the-counter (OTC), anti-malarial, cancer, and specialized treatment drugs and herbal supplements, which benefit mankind, and whose active ingredients are extracted or derived from plants:
Common (Drug; Source; Action/Use): Aspirin; Willow bark (Salix species); Analgesic Emetine (Syrup of Ipecac); Cephaelis ipecacuanha; Induce vomiting; particularly in cases accidental swallowing of poisonous or harmful substances Scopolamine; Hyoscyamus niger; Motion sickness Camphor; Cinnamomum camphora; Rubefacient a-Lobeline; Indian tobacco (Lobelia inflata); Smoking deterrant Sanguinarine; Bloodroot (Sanguinaria canadensis); Dental plaque inhibitor Stevia (Stevioside); Stevia rebaudiana; Sweetener Thymol; Thymus vulgaris; Antifungal (topical); popular in mouthwashes Valapotriates; Valeriana officinalis; Sedative; with no morning hangover effect Silymarin; Milk thistle (Silybum marianum); Antihepatotoxic; supports liver health Morphine, Codeine; Opium poppy (Papaver somniferum); Analgesic ; antitussive (Codeine) Pseudoephredrine; Ephedra sinica; Sympathomimetic Erythoromycin; Tropical fungi; Antibiotic Tubocurarine; Chondodentron tomentosum; Muscle relaxant Pilocarpine ; Jaborandi; Glaucoma
Anti-malarial (Drug; Source; Action/Use): Quinine; Cinchona ledgerian; Anti-malarial Coartem; Sweet wormwood (Artemisia annua); Anti-malarial
Cancer treatment (Drug ; Source ; Action/Use): Vinblastine; Madagascar periwinkle (Catharanthus roseus); Hodgkin's disease Vincristine; Madagascar periwinkle (Catharanthus roseus); Leukemia Taxol/Paclitaxel; Pacific Yew (Taxus brevofolia ); Ovarian and breast cancer VePesid, Etopophos/Etoposide ; Mayapple (Podophyllum peltatum) ; Lymphomas; leukemias; lung, breast, testicular cancers Hycmatim/Toptecan; Chinese Tree of Hop/Joy (Camptotheca acuminata); Ovarian, breast, lung cancers; certain types of leukemias
Specialized treatment (Drug; Source; Action/Use): Chaulmoogra oil; Derived from trees in the genera Hydrocarpus and Taraktogenos; Antibiotic against bacterium that causes leprosy Digitoxin, Digitalin, Digoxin; Common foxglove (Digitalis purpurea); Cardiotonic, functioning as a heart stimulant that improves the tone and rhythm of an ailing heartbeat Reserpine; Snakeroot (Rauvolfia species); Tranquilizer Kawain; Kava (Piper methysticum); Tranquilizer Atropine; Atropa belladonna; Anticholinergic, aids cognitive impairment Gossypol; Gossypium species (Cottonseed); Male contraceptive Hydrastine; Goldenseal (Hydrastis canadensis); Hemostatic, astringent
Related Tags: cancer, drugs, pharmaceuticals, usp, prescriptions, medicinal plants, pharmacopoeia
Mary El-Baz, PhD is the author of seven books, including Building a Healthy Lifestyle: A Simple Nutrition and Fitness Approach and Easy and Healthful Mediterranean Cooking, an invaluable nutritional program for anyone to build a healthy lifestyle and a collection of savory, nutritious Mediterranean recipes. Dr. El-Baz holds a doctorate in Holistic Nutrition and Doctor of Naturopathy degree from Clayton College of Natural Health and degrees from the University of Missouri.
Look for her books on http://www.amazon.com (Mary El-Baz, PhD) and other fine online booksellers. See her latest book Wild Plant Teas and Coffees of Missouri, a practical guide acquainting you with a few of the wild plants of Missouri suitable for teas and coffees, including linden flower, wild strawberry and blackberry, chamomile, clover, mint, roasted chicory and dandelion roots, and roasted persimmon seed.
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