Lecture 2: pain treatment and pain research Flashcards
What was the treatment of pain ins antiquity
-trephination
-pain was thought to be caused by eveil spirits in the brain so they had to let them out
-made holes in people’s skulls
-also used theriac
when was Theriac used and what is the main active ingredient
-in antiquity
-OPIUM
how was pain treated in 1500 AD
-willow bark made into tea
-opium poppy
what was the first pharmaceutical company
Merk KGaA in germany
what did the first pharmaceutical companies do in the 1500’s
-they knew we could take opium and make it into morphine
-but were unable to make the same dosage
-they came up a process to always have the same dosage
-all about control dosage
what is the greatest advance in medecine
anasthesia in 1846
before we had no anesthetic only analgesic
what is the ether dome
it is a surgical amphiteater in Boston
-it showed that “ether” existed aka ether puts you to sleep and that it was hard to die from it
Equianalgesic dosing, compared to 10 mg IM morphine: Codeine
-IM: 130
-PO: 200
-Half-life: 2-3
-Duration of action: 2-4
-Comments: usually combined with a nonopiod
Equianalgesic dosing, compared to 10 mg IM morphine: oxycodone
-IM: 15
-PO: 20-30
-Half-life: 2-3
-Duration of action: 2-4
-Comments: combined with a nonopiod or as a controlled release tablet
Equianalgesic dosing, compared to 10 mg IM morphine: : propoxyphene
-IM: 100
-PO: 50
-Half-life: 2-3
-Duration of action: 2-4
-Comments: usually combined with nonopiod, norproxyphene toxicity may cause seizure
Equianalgesic dosing, compared to 10 mg IM morphine: morphine
-IM: 10
-PO: 30
-Half-life: 2-3
-Duration of action: 3-4
-Comments:multiple routes of administration available. controlled release availabke
Equianalgesic dosing, compared to 10 mg IM morphine: Methadone
-IM: 1-3
-PO: 2-6
-Half-life: 15-190
-Duration of action: 4-8
-Comments: since it has a longer half life it is less adictive
plasma accumulation may lead to delayed toxicity
Equianalgesic dosing, compared to 10 mg IM morphine: fentanyl
-IM: it depends on what you give aka patches or IV
-PO:
-Half-life:
-Duration of action: 48-72
-Comments: lasts so much longer
routes of drug administration
-subcutaneus (end of dermal layer)
-intramusculat aka IM
-intravenous
-transdermal aka on the epidermis
-implantation aka pumps right into the dermis
why is transdermal kinda lit
-long lasting
-lower dose
-lower side effects
what are the major differences between the routes of drug administration
matter of time and where it needs to go
what is pharmacodynamics
what drug does to the body
what is pharmacokinetics
what body does to the drug
what is ADME
-absorbtion
-distribution
-metabolism
-elimination
rue or false: when a med is broken down either the metabolites become eliminated or they are active
true
what is an example of a med that the metabolites are active
codeine becomes morphine
which organ absorbs the drugs
small intestines
what is PCA
-patient controlled analgesia
-people consume less morphine that way because they have more control
opiate side effects
-constipation up to 80%
-nausea or vomiting : 15-30
-sedation 20-60%
-confusion or hallucinations
-myoclonic jerks
-respiration depression
-xerostomia aka dry mouth
-urine retention
what is the best selling drug class
over the counter analgesics