Unit 2 Flashcards
(26 cards)
official name
used in the official drug reference, USP (Pharmacopoeia of the US)
1906-1974 - NF (National Formulary)
chemical name
describes the exact chemical composition of a drug
generic name
for older drugs, this is the name handed down thru antiquity
for newer drugs, it is usually the “code” ahem given during testing phases that is based upon chemical name
will become official name if drug is included in USP
contrast w/ therapeutic equiv
different drug completely (not a generic equiv)
trade name
copyrighted name whose use is restricted to a single company (17 yrs –> generic)
USP
1820
published every 5 yrs w/ supplements as needed
single drugs
older drugs deleted in favor of newer, more effective agents
NF
1888-1975 not combined w/ USP
single drugs and formulas for drug mixtures
often included drugs deleted from USP
AMA Drug Evaluations
- prepared by appointed experts
- drugs grouped according to use
- general discussion provided of each group
- favorable and unfavorable judgments expressed
Physician’s Desk Reference (PDR)
- manufacturers buy space
- info similar to drug inserts
- cross-referenced to generic and chem names
- esp useful section on drug ID and dosage forms
Drug Facts and Comparisons
- drugs grouped according to use
- comparison of various drug forms including cost comparison
- color photo section
-pharmacists use
local drug activity
drug action occurring only at the site of application
systemic drug activity
action of a drug that is absorbed then distributed throughout the body
- whole body
- specific target organ
skin
local action - antiseptic, cleansing
mucous membranes
local - sprays, decongestants
systemic - vasopressin, cocaine, heroin
inhalation
local - antibiotics, detergents, enzymes
systemic - anesthetics, CO2, O2
genitourinary
local action intended
Oral (GI)
systemic effect
convenience, safety, cost
before, with, after meals
contraindications of oral route - vomit, irritating, Rx {} not high enough in blood stream
sublingual and buccal
systemtic
- drugs destroyed by liver of digestive enzymes
- do not chew, swallow, or take w/ water
local
-anesthetic or antiseptic
rectal
local - stimulate defecation reflex
systemic - retention enemas or suppositories
why use?
- bypass liver and digestive enzymes
- irritating to stomach
- uncooperative or unconscious pt
- antiemetic
why might oral drug not reach blood in high enough concentration?
not absorbed thru GI tract
destroyed by digestive enzymes
destroyed by liver (portal system
which routes bypass the portal circulation?
sublingual, buccal, rectal route
parenteral routes
refers to injections
more hazardous route
- rapidly absorbed
- local tissue damage
- entrance of microorganisms
type depends on placement of needl
depth of needle
- intramuscular
- subcutaneous
- intradermal
Subcutaneous
- highly soluble and potent in small volume
- ice or tourniquet in case of reactio