Drug Glossary and Definition

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Pharmacist's Guide

Table of Contents

Drug Glossary - O

Opiates See Narcotics.
Orthostatic Hypotension Excess drop in blood pressure when arising from a sitting or lying position.
Osteoporosis Softening of bones caused by a loss of calcium usually found in bone. Bones become brittle and fracture easily.
Ototoxic Medications These medicines may possibly cause hearing damage. They include aminoglycosides, 4-aminoquinolines, antiinflammatory analgesics (nonsteroidal), bumetanide (injected), capreomycin, carboplatin, chloroquine, cisplatin, deferoxamine, erythromycins, ethacrynic acid, furosemide, hydroxychloroquine, quinidine, quinine, salicylates, vancomycin (injected).
Ovary Female sexual gland where eggs mature and ripen for fertilization.
Over-the-Counter Drugs (OTC) Drugs that are considered safe and effective for use by the general public without a doctor’s prescription. Same as nonprescription drugs.

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