ch. 3 Drug regulation, development, names, information Flashcards
Drug regulation
-drugs are regulated by Food and Drug administration (FDA)
1906- first american law regulating drugs
10 laws have been enacted
Hazardous Drug Exposure:
- National Institute for Occupational Safety and Health (NIOSH)
- est. 1970, ID hazardous drugs, publishes safe handling practices
—carcinogen
—teratogen
—reproductive toxicity
—organ toxicity at low doses
—genotoxicity
—new drugs similar to known toxic drugs
controlled substances
controlled substances act:
- created schedules I-V of controlled drugs
- schedule I has no patient use in U.S (heroin, LSD)
- Schedule II-V, used in U.S; potential for abuse
—control is looser the higher the schedule
*lower the number- the higher the abuse potential and the tighter the control
Controlled Substances
Schedule II
- cocaine, methamphetamine, methadone, hydromorphone, meperidine, oxycodone, adderall, ritalin, fentanyl
Schedule III
- codeine, ketamine, anabolic steroid, testosterone
Schedule IV
- xanax, soma, darvocet, valium, ativan, ambien, tramadol
Schedule V
- lomotil, lyrica, gabapentin
Drug Development:
Randomized controlled trial(RCT): most reliable way to assess drug therapies, used to evaluate all new drugs, minimize personal bias in results- controls, randomization, binding
Stages of new drug development
— preclinical testing: takes 1-5 yrs. (animals)
— clinical testing (humans) 2-10 yr; 4 phases using healthy subjects progressing to actual patients tests include metabolism, therapeutic usefulness, dose range, side effects
Phase IV: postmarket surveillance
Limitations of testing procedure:
- limited info in women and children
- not all adverse effects are caught
- FDA mandates participation of women now; most participation of children in postmarketing surveillance
Drug Names: Chemical
chemical nomenclature
not usually used in clinical setting
ex. N-acetyl-parapaminophenol
Drug name: Generic
- each drug has one generic name
- naming method preferred for general use
- final syllable/suffix often indications drug class
ex. acetaminophen
Drug names: Brand
- AKA trade name
- assigned by drug company
- easier to remember
- must be FDA approved
ex. Tylenol
problems with drug names is they can be hard to remember, pronounce
OTC drugs
- can be purchased without prescription
- accounts for 60% of all doses of medication administration
- 40% of Americans use OTC at least every other day
- OTC status is determined by FDA- new labeling requirements 2006
- average household has 24 OTC drugs in cabinet