1.2 - Pharmacologic Principles | Key Terms Flashcards
Key Terms of Pharmacologic Principles (64 cards)
additive effects
when 2+ drugs with similar actions result in a combined effect equal to the sim of their individual effects (taking acetaminophen and ibuprofen together for pain results in increased pain relief)
adverse drug event
an undesirable occurrence related to administering or failing to administer a drug (patient hospitalized after wrong dosage)
adverse drug reaction
unexpected or excessive response to a drug at therapeutic doses *overdose (sever rash after taking antibiotic)
adverse effects
general term for unwanted effects due to a drug (nausea caused by chemotherapy)
agonist
a drug that binds to receptors and activates them (morphine activated opioid receptors)
allergic reaction
immune hypersensitivity response to a medication (anaphylaxis after penicillin)
antagonist
a drug that blocks receptor activity (Naloxone blocks opioid effects)
antagonistic effects
2+ drugs produce a reduced effect together than individually (beta blockers reduce effects of beta antagonist [propranolol + albuterol])
bioavailability
the extent a drug is absorbed and available in the bloodstream (IV drugs have 100% bioavailability)
biotransformation
chemical changes a drug undergoes in the body, mainly the liver (codeine is metabolized to morphine)
blood-brain barrier
chemical name
contraindication
a reason to withhold a drug due to potential harm (avoid warfarin in pregnant women)
cytochrome p-450
dependence
body or mind relies on a drug to function (needing opioids to avoid withdrawal)
dissolution
drug
a chemical that alters bodily functions (caffeine boosts alertness)
drug actions
drug classification
drug effects
drug induced teratogenesis
drug interaction
duration of action
how long a drug’s effects last (Ibuprofen reduces pain for about 4-6 hours)
enzymes