Chapter 22 (Not the spelling words) Flashcards
(38 cards)
drug
Any substance that when taken into the body, may modify one or more of its functions
Food, Drug, and Cosmetic Act (FDCA)
- 1938
- Regulates quality, purity, potency, effectiveness, safety, labeling, and packaging of food, drug, and cosmetic products
- Enforced by the Food and Drug Administration (FDA)
Controlled Substances Act
- Regulates manufacture, distribution, and dispensing of controlled substances
- Drugs that have the potential of being abused and of causing physical or psychological dependence
- Enforced by the Drug Enforcement Administration (DEA)
Schedule I drugs
- Not considered to be legitimate for medical use in the United States
- Used for research only and cannot be prescribed
- High risk for abuse
- Examples: LSD, heroin, marijuana
Schedule II drugs
- Accepted medical use but have a high potential for abuse or addiction
- Must be ordered by written prescription
- Cannot be refilled without a new, written prescription
- Examples: morphine, cocaine, codeine, Demerol, Dilaudid
Schedule III drugs
- Moderate potential for abuse or addiction, low potential for physical dependence
- May be ordered by written prescription or by telephone order
- Prescription expires in 6 months – may not be refilled more than 5 times in 6-month period
- Examples: Tylenol with codeine, Butisol, Hycodan
Schedule IV drugs
- Less potential for abuse or addiction than those of Schedule III, with limited physical dependence
- May be ordered by written prescription or by telephone order
- May be refilled up to 5 times in a 6-month period – prescription expires in 6 months
- Examples: Librium, Valium, Darvon, Equanil
Schedule V drugs
- Have a small potential for abuse or addiction
- May be ordered by written prescription or by telephone order
- No limit on prescription refills
- Some of these drugs may not need prescription
- Examples: Robitussin-AC, Donnagel-PG, Lomotil
Drug Standards
-Rules established to control strength, quality, and purity of medications prepared by various manufacturers
-Require all preparations called by the same drug name to be of a uniform strength, quality, and purity
-United States Pharmacopeia/National Formulary (USP/NF)=Contains formulas and information that provide standards for preparation and dispensation of drugs.
Recognized by U.S. government as the official listing of standardized drugs in the United States.
FDCA specifies a drug is official when it is listed in USP/NF
Drug References
- Available for health professionals responsible for safe administration of medications
- Provide the following information: Composition, action, indications for use, contraindications for use, precautions, side effects, adverse reactions, route of administration, dosage range, and what forms are available
Physicians’ Desk Reference
-Published yearly by Thomson Reuters
-Manufacturers pay to list information about their products in the PDR
-Same information that appears on package inserts (as required by the FDA)
-Generic name, indications, contraindications, adverse effects, dosage, and route of administration
-Additional references:
Physicians’ Desk Reference for Nonprescription Drugs
Physicians’ Desk Reference for Ophthalmology
Drug Interactions and Side Effects Index
Indications Index
Drug Facts and Comparisons
- drugs according to their therapeutic classification
- Same basic facts as other drug references
- Particularly helpful in comparing the various drugs within each category to other products
- In reference to effectiveness, content, and cost
Drug sources
Plants
Minerals
Animals
Synthetic
generic name
- Name that was established when drug was first manufactured
- Written in lowercase letters
- Official name of a drug
- Each drug has only one generic name
- Original manufacturer is only company that can use generic name for the first 17 years
brand name
- Name under which the drug is sold by a specific manufacturer
- Spelling always begins with a capital letter
- Also known as the trade name
- Name is owned by the drug company and no other company may use that name
- Each brand name carries a registered trademark symbol ®
drug action
How drugs produce changes within the body
drug effect
- Changes that take place in the body as a result of drug action
- Slowing down or speeding up processes
- Destroying certain cells or parts of cells
- Replacing substances that the body lacks or fails to produce
desired effect
Effect of drug in the body that was intended
side effect
- Additional effect on the body by the drug that was not part of the goal for that medication
- Not usually severe enough to warrant discontinuing the medication
local effect
Response to a medication that is confined to a specific part of the body
ROA=Oral
- Given by mouth and swallowed
- Advantage: Easiest and safest method; Most economical method
- Disadvantage: Slow method of absorption; Possibility of being destroyed by gastric juices
ROA=sublingual
- Placed under the tongue – dissolves in saliva
- Advantage: More rapid absorption rate than oral; Higher concentration of medication reaches bloodstream
- Disadvantage: Not convenient route of administration for bad-tasting medications or irritating medications
ROA=buccal
- Placed in mouth next to cheek (tablet form)
- Advantage: More rapid absorption rate than oral; Higher concentration of medication reaches bloodstream
- Disadvantage: Possibility of swallowing the pill
ROA=inhalation
- Medication is sprayed or inhaled into nose, throat, and lungs
- Advantage: Good absorption due to large surface contact area; Provides rapid treatment
- Disadvantage:Sometimes difficult to regulate dose; Not suitable method for medications that irritate mucous membrane lining