Abortifacient - An agent that induces or causes premature expulsion of the fetus.
Acrid - having a hot, biting taste or causing heat or irritation when applied to the skin.
Adjuvant - an herb added to a mixture to aid the effect of the principle ingredient.
Alterative - an agent which provides gradual beneficial change in the body, usually by improving nutrition, without having any marked specific effect and without causing sensible evacuation.
Analgesic - A drug which relieves or diminishes pain, anodyne.
Anaphrodisiac - an agent which reduces sexual desire or potency
Anesthetic - an agent that deadens sensation
Anodyne - an agent that soothes or relieves pain.
Anthelmintic - an agent that destroys or expels intestinal worms, vermicide, vermifuge.
Antibiotic - an agent that destroys or arrests the growth of micro-organisms.
Anticoagulant - an agent that prevents clotting in a liquid, as in blood.
Antiemetic - an agent that counteracts nausea and relieves vomiting.
Antihydrotic - an agent which reduces or suppresses perspiration.
Antilithic - an agent which reduces or suppresses urinary stones (calculi) and acts to dissolve those already present.
Antiperiodic - an agent which counteracts periodic or intermittent diseases (such as malaria)
Antiphlogistic - An agent which reduces inflammation.
Antipyretic - An agent which prevents or reduces fever.
Antiscorbutic - A source of vitamin C for curing or preventing scurvy.
Antiscrofulous - Counteracting scrofula
Antiseptic - An agent for destroying or inhibiting pathogenic or putrefactive bacteria.
Antispasmodic - an agent that relieves or checks spasms or cramps.
Antitussive - An agent that relieves coughing.
Aperient - A mild stimulant for the bowels, a gentle purgative.
Aphrodisiac - an agent for arousing or increasing sexual desire or potency.
Appetizer - an agent that excites the appetite.
Aromatic - a substance having an agreeable odor and stimulating qualities.
Astringent - an agent that contracts organic tissue, reducing secretions or discharges.
Balsam - 1. A soothing or healing agent. 2. A resinous substance obtained from the exudations or various and used in medicinal preparations.
Bitter - Characterized by a bitter principle which acts on the mucous membranes of the mouth and stomach to increase appetite and promote digestions.
Calmative - An agent that has a mild sedative or tranquilizing effect.
Cardiac - an agent that stimulates or otherwise affects the heart.
Carminative - An agent for expelling gas from the intestines.
Cathartic - An agent that acts to empty the bowels; laxative.
Caustic - A corrosive substance capable of burning or eating away tissues.
Cholagogue - an agent for increasing the flow of bile into the intestines.
Coagulant - an agent that induces clotting in a liquid, as in blood.
Counterirritant - An agent for producing irritation in one part of the body to counteract irritation or inflammation in another part.
Demulcent - A substance that soothes irritated tissue, particularly mucous membrane.
Deodorant - An herb that has the effect of destroying or masking odors.
Depressant - an agent which lessens nervous or functional activity; opposite of stimulant.
Depurative - An agent that cleanses and purifies the system, particularly the blood.
Detergent - An agent that cleanses wounds and sores of diseased or dead matter.
Diaphoretic - An agent that promotes perspiration; sudorific .
Digestive - An agent that promotes or aids digestions.
Disinfectant - An agent that cleanses infection by destroying or inhibiting the activity of disease-producing micro organisms.
Diuretic - An agent that increases secretion and expulsion of urine.
Emetic - An agent that causes vomiting
Emmenagogue - an agent that promotes menstrual flow.
Emollient - an agent used externally to soften and soothe.
Errhine - an agent that promotes sneezing and nasal discharges.
Euphoriant - an agent that induces an abnormal sense of vigor and buoyancy.
Exanthematous - relating to skin diseases or eruptions.
Expectorant - An agent that promotes the discharge of mucus from the respiratory passages.
Febrifuge - An agent that reduces or eliminates fever.
Galactagogue - an agent that encourages or increases the secretion of milk.
Hallucinogen - An agent that induces hallucinations.
Hemostatic - An agent that stops bleeding.
Hepatic - A drug that acts on the liver.
Hydragogue - A purgative that produces abundant water discharge.
Hypnotic - An agent that promotes or produces sleep.
Irritant - An agent that causes inflammation or abnormal sensitivity in living tissue.
Laxative - An agent promoting evacuation of the bowels; a milk purgative.
Mucilaginous - Characterized by a gummy or gelatinous consistency.
Narcotic - A drug which relieves pain and induces sleep when used in medicinal doses.
Nauseant - an agent that produces an inclination to vomit.
Nephritic - A medicine applicable to diseases of the kidney.
Nervine - an agent that has a calming or soothing effect on the nerves; formerly, any agent that acts on the nervous system.
Oxytocic - an agent that stimulates contraction of the uterine muscle and so facilitates or speeds up childbirth.
Pectoral - A remedy for pulmonary or other chest diseases.
Poison - A substance which has a harmful or destructive effect when in contact with living tissue.
Purgative - an agent that produces a vigorous emptying of the bowels.
Refrigerant - An agent that lowers abnormal body heat.
Restorative - An agent that restores consciousness or normal physiological activity.
Rubefacient - A gentle local irritant that produces reddening of the skin.
Sedative - A soothing agent that reduces nervousness, disease, or irritation.
Sialagogue - An agent that stimulates the secretion of saliva.
Specific - An agent which cures or alleviates a particular condition or disease.
Stimulant - An agent that excites or quickens the activity of physiological processes.
Stomachic - An agent that strengthens, stimulates, or tones the stomach.
Styptic - An agent that contracts tissues; astringent; specifically, a hemostatic agent that stops bleeding by contracting blood vessels.
Sudorific - An agent that promotes or increases perspiration.
Taeniacide - A substance that kills tapeworms.
Tonic - An agent that strengthens or invigorates organs or the entire organism.
Vasoconstrictor - An agent that narrows the blood vessels, thus raising the blood pressure.
Vasodilator - An agent that widens the blood vessels, thus lowering the blood pressure.
Vermicide - An agent that destroys intestinal worms.
Vermifuge - an agent that causes the expulsion of intestinal worms.
Vesicant - An agent that produces blisters.
Vulnerary - A healing application for wounds.