Drug Glossary and Definition

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Pharmacist's Guide

Table of Contents
Drug Glossary - T

Tardive Dyskinesia Slow, involuntary movements of the jaw, lips and tongue caused by an unpredictable drug reaction. Drugs that can cause this include haloperidol, phenothiazines, thiothixene.
Tartrazine Dye A dye used in foods and medicine preparations that may cause an allergic reaction in some people.
Tetracyclines A group of medicines with similar chemical structure used to treat infections. These drugs include demeclocycline, doxycycline, methacycline, minocycline, oxytetracycline, tetracycline.
Thiazides A group of chemicals that cause diuresis (loss of water through the kidneys). Frequently used to treat high blood pressure and congestive heart failure. Thiazides include bendroflumethiazide, benzthiazide, chlorothiazide, chlorthalidone, cyclothiazide, hydrochlorothiazide, hydroflumethiazide, methyclothiazide, metolazone, polythiazide, quinethazone, trichlormethiazide.
Thiothixines See Thioxanthenes.
Thioxanthenes Drugs used to treat emotional, mental and nervous conditions. These drugs include chlorprothixene, flupenthixol, thiothixene.
Thrombocytopenias Diseases characterized by inadequate numbers of blood platelets circulating in the bloodstream.
Thrombolytic Agents Drugs that help to dissolve blood clots. They include alteplase, anistreplase, streptokinase, urokinase.
Thrombophlebitis Inflammation of a vein caused by a blood clot in the vein.
Thyroid Gland in the neck that manufactures and secretes several hormones.
Thyroid Hormones Medications that mimic the action of the thyroid hormone made in the thyroid gland. They include dextrothyroxine, levothyroxine, liothyronine, liotrix, thyroglobulin, thyroid.
Tic Douloureux Painful condition caused by inflammation of a nerve in the face.
Tolerance A decreasing response to repeated constant doses of a drug or a need to increase doses to produce the same physical or mental response.
Toxicity Poisonous reaction to a drug that impairs body functions or damages cells.
Tranquilizers Drugs that calm a person without clouding consciousness.
Transdermal Patches Medicated patches that stick to the skin. There are more and more medications in this form. This method produces a prolonged systemic effect. If you are using this form, follow these instructions: Choose an area of skin without cuts, scars or hair, such as the upper arm, chest or behind the ear. Thoroughly clean area where patch is to be applied. If patch gets wet and loose, cover with an additional piece of plastic. Apply a fresh patch if the first one falls off. Apply each dose to a different area of skin if possible.
Tremor Involuntary trembling.
Trichomoniasis Infestation of the vagina by trichomonas, an infectious organism. The infection causes itching, vaginal discharge and irritation.
Triglyceride Fatty chemical manufactured from carbohydrates for storage in fat cells.
Tyramine Normal chemical component of the body that helps sustain blood pressure. Can rise to fatal levels in combination with some drugs. Tyramine is found in many foods:
Beverages Alcohol beverages, especially Chianti or robust red wines, vermouth, ale, beer.
Breads Homemade bread with a lot of yeast and breads or crackers containing cheese.
Fats Sour cream.
Fruits Bananas, red plums, avocados, figs, raisins, raspberries. Meats and meat substitutes-Aged game, liver (if not fresh), canned meats, salami, sausage, aged cheese, salted dried fish, pickled herring, meat tenderizers. Vegetables-Italian broad beans, green bean pods, eggplant. Miscellaneous-Yeast concentrates or extracts, marmite, soup cubes, commercial gravy, soy sauce, any protein food that has been stored improperly or is spoiled.


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