Chapter 1 (history of drugs) Flashcards
molecular pharm
drug design
toxicology
study of toxic/poisonous drug effects
clinical pharm
testing the therapeutic use of drugs
pharmacodynamics
how drugs produce their effects
pharmacokinetics
measured response time and dose
bioavailability
fraction of an administered dose that reaches systemic circulation
drugs
any biologically active substance
medicine
a drug deliberately administered for therapeutic purposes
drug use began
3000 bc
uses of drugs
therapeutic
prevention
diagnostic
therapeutic uses
antibiotics for infections
analgesic to control pain
hormone for HRT
prevention uses
vaccinations
motion sickness
diagnostic uses
thallium for exercise stress tests to show uptake into active/normal muscle
radiopaque contrast agents used in certain x ray procedures like IVP
Natural source drugs (derived from plants)
digitalis (Lanoxin), scopolamine, atropine, ephedrine, galantamine (Reminyl), aspirin
digitalis
Lanoxin: very narrow therapeutic window. Derived from foxglove plant and used to increase heart contraction strength
scopolamine; atropine
from belladonna plant and used by women to dilate eyes originally
ephedrine
from ephedra species and used as bronchodilator and decongestant
galantamine
Reminyl: isolated from daffodil bulbs but only barely treats early Alzheimer’s
Natural source drugs (derived from animal sources)
thryoid hormone, estrogen (Premarin), insulin
thyroid hormone
derived from various animals for HRT
estrogen
Premarin: from pregnant mare urine. Used originally to treat hot flashes in women that were post-menopausal
insulin
used from cows and pigs originally until recombinant DNA technology could be applied so bacteria could make it
Natural source drugs (from mineral sources)
potassium, lithium, iron, calcium, technetium, thallium, barium (last three used for radiology)
dangers of using drugs from natural sources versus synthetic
melatonin from animal sources may contain prions, for example, while synthetic never would
Medicine before 1906
buyer beware; many patent drugs
patent drugs
drugs made with a recipe that are proprietary
Mrs. Winslow’s tooth drops
cocaine given for child tooth aches
Dr. Bateman’s pectoral drops
mixed opium, licorice, and camphor to help pain
late victorian age
opium dens led to many people addicted to opium chemicals
start of 20th century
Hamlin’s wizard oil: patent drugs were still very prevalent
drug legislature began because
so many people were addicted to opium from misuse of drugs and nasty meat-packing conditions
Pure Food and Drug Act
Wiley Act: 1906.
F and D makers use pure ingredients and have accurate labeling
First federal drug legislature
Harrison Narcotic act
1914: Taxation and regulation of interstate commerce and helped with drugs of abuse (cocaine and heroine were now regulated)
1937
S.E. Marshal Co. created sulfanilamide using diethylene glycol as solvent
“Elixir sulfanilamide” killed over 100 people
created big changes in 1938
Food, drug, and cosmetic act
FDCA formed in 1938; replaced Wiley act and is still basic law we have today.
Required safety of drugs and FDA was formed
1960s
Thalidomide led to stricter FDA protections in the 1960s
Dr. Frances Kelsey stopped it from entering the US
Around this time efficacy had to proven too
Schedule drugs
new regulations were needed to tightly control “hippie” drugs that had organized crime supplying them
Require license to prescribe them
Controlled substance act
CSA in 1970: created to control hippie drugs
Drug enforcement agency
DEA formed in 1973 and established schedule drugs that were regulated by them
Schedule 1 drugs
no medical purpose; only used in labs for experiments
LSD (Lysergic acid diethylamide), ecstasy (3,4-Methylenedioxymethamphetamine)
schedule 2 drugs
still highly addictive, but have medical use and cannot be phoned in as a prescription
Percodan, denerol, opiods, Ritalin
schedule 3 drugs
moderate pain drugs usually, still effective but not as regulated
In California they cannot be phoned in or given in multiple refills
Tylenol 3, vicodin
Schedule 4 drugs
lithium, valium
schedule 5 drugs
cough syrups with low doses of codeine
orphan drugs
drugs for rare, “unprofitable” disorders
orphan drug act
1983: nobody was creating drugs for orphan conditions so government offered tax credits, exclusive marketing rights, and quicker approval FDA process
Dietary supplements and health education act
1994: loose and hard to enforce guidelines that allow many things to be sold under the guise of “health foods/supplements”
Companies can make crazy claims by marketing stuff as dietary supplements instead of medicine
FDA moderinization act
1997 revamp of FDCA by Clinton: drugs used for life threatening situations have shorter approval times for off label uses
Summary of Drug legislation
1938 FDCA (and 1962 and 1997 amendments) required approval of FDA to market drugs, accurate labels, generic name included, prove efficacy, warning labels, legend inscription
Prescription drug amendment act
1951: defined what drugs are Rx or OTC
OTC usually half strength of Rx
Pharmaceutical milestones
1803 morphine from opium
1899 aspirin introduced
1908 sulfanilamide created
1922 insulin from animals
1942 peniclllin
1945 benadryl
1948 cortisone
1957 benzodiazepine (for anxiety disorders)
1958 haldol (for schizophrenia)
1967 Inderal (B blocker)
1977 Tagamet (H2 blocker)
1982 first recombinant DNA drug for HGH
1987 alteplase (TPA)
1987 AZT (zidovudine, Retrovir) for anti aids
1999 celebrex for arhritis
2000 many decongestants and appetite suppresants pulled for deaths
2001 anthrax attack created demand for fluroquinolone anitbiotic ciproflaxin
2002 botox created for wrinkles, now used for migraines
2006 Gardasil is first vaccine for cancer (cervical)
2007 Zyrtec is first drug to have same dose strength for Rx and OTC
Hep C can be cured by Harvoni (ledipasvir, sofosbuvir)
aspirin
acetylsalicylic acid: from willow bark
codeine
semi-synthetic drug derived from morphine because easier to take in oral form
myrrh
used historically as an anti-inflammatory
dimethyltryptamine
DMT: 1
ecstasy
MDMA: 1
GHB
1
heroin
1
LSD
1
PMA
1
psilocybin
1
Percocet
oxycodone and acetaminophen: 1