• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/106

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

106 Cards in this Set

  • Front
  • Back

What is cycloocygenase?

An enzyme that catalyzes the synthesis of prostaglandins from archidonic acid

What is cycloocygenase also referred to as?


Definitely on test

Prostaglandin H synthase

How many enzymes is cycloocygenase associated with?

3

Cycloocygenase is required to produce these two things?

prostacyclin and thromboxane

Where is COX 1 found?

gastric mucosa, renal parenychma, and platelets

What processes does COX 1 mediate?

physiological and homeostatic processes

COX 2 is _______ and can be ______ at many site.

inducible; expressed

What does COX 2 mediate?

inflammation, pain, fever, and carcinogenesis

What processes does COX 2 mediate?

Pathological

COX 3 may be a target for what medication?

acetaminophen

NSAIDS are all inclusive of these 3 properties?

analgesic, antipyretic, anti-inflammatory (at higher doses)

These drugs inhibit both COX 1 and COX 2?

traditional drugs

Is COX 1 or COX 2 specific?

COX 2

Name some non-specific drugs.

toradol, aspirin, ibuprofen, naproxen

Name some specific drugs for the COX 2 portion of the enzyme?

vioxx, bextra, celebrex,

NSAIDS inhibit which COX enzymes?

COX 1 and COX 2

How is the MOA of NSAIDs mediated?

prostaglandin and non-prostaglandin mediated MOA

Describe the analgesic MOA of NSAIDs?

Mediated through prostaglandin and non-prostaglandin mediation.



Prostaglandin MOA-NSAIDs inhibit prostaglandin synthatase peripherally



Non-prostaglandin MOA-NSAIDs also work by peripheral and chemical chemoreceptors

All NSAIDs inhibit?

cyclooxygenase, and prostaglandin and thromboxane synthesis

Cyclooxygenase is required for conversion of ______ to ______.

arachidonic acid (PGG2) to endoperoxide intermediate (PGH2)

Prostaglandins and thromboxanes play crucial roles in?

Pain, inflammation, fever, excessive blood clotting

What are the most common side effects of NSAID's in the cardiovascular system?

increased BP (by either selsective or non-selective NSAIDs)


What are the most common side effects of NSAID's in the GI system?

1. stomach upset (dyspepsia) short term use


2. peptic ulcer diease and bleeding from the stomach (long-term and in high doses)

What are the most common side effects of NSAIDs in the Liver system?

liver toxicity in long term use

What are the main systemic side effects of NSAIDs?

cardiac, GI, liver, kidney, tinnitus

What are the most common side effects of NSAIDs in the kidney system?

kidney toxicity (even with short term use of NSAIDs)

In people with underlying kidney disease, what should be monitored yearly?

BP and kidney function

Is tinnitus more common in ASA or NSAIDs use?

High dose aspirin use, but with NSAIDs as well. The ringing usually resolves when the dose is reduced.

What causes Steven Johnson syndrome?

Viral & bacterial infections


Drug reactions (NSAIDs)

What are some adverse effects of NSAIDs

1. hepatocellular injury


2. allergic rhinitis


3. inhibition of platelet aggregation (MI or CAD pts)


4. renal dysfunction


5. tinnitus


6. urticaria (hives)


7. gastric ulceration

COX 2 inhibitors are more specific for ____ inhibitors?

COX 2


Do COX 2 inhibitors inhibit the COX 1 part of the enzyme?

No

What illnesses are COX 2 inhibitors useful in managing?

osteoarthritis, acute gout, dysmenorrhea

Most adverse effects of COX 2 inhibitors are seen in pts taking drugs chronically for this condition?

arthritis

Chronic use of ASA and other NSAIDs increases or decreases the risk of colon cancer? By how much?

decreases; 40-50%

Chronic NSAID use also decreases the risk of this disease?

Alzehimer's

How does ASA produce analgesia?

Through it's ability to irreversibly acetylate COX enzyme leading to a decrease in the synthesis and release of prostaglandin

Is ASA reversible?

No, not until the life of the platelet is over.

What things is ASA most used for?

1. low intensity pain with muscle and H/A


2. osteoarthritis and RA


3. anti-platelet for preventation of MI (most common)

ASA is confined to a very small or large dose range?

small

Does ASA have a celiling effect?

Yes, you can increase the dose, but it won't help the pain any faster. It will just kill your kidneys.

Is the antiplatelet effect of ASA reversible or irreversible? How?

irreversible, due to acetlyzation of the platelet through the COX 1 enzyme

What populations should ASA not be used in?

children due to rye's syndrome


nursing mother'd due to internal bleeding

ASA side effects are?

Chair Gum


1. CNS stimulation


2. hepatic dysfunction


3. allergic reactions


4. inhibition of platelet function


5. renal dysfunction


6. GI dysfunction


7. uterine effects


8. metabolic alterations

Is acetaminophen considered a true NSAID? Why?

No, due to it's lack of anti-inflammatroy properties

Is acetaminophen a good choice to treat arthritis or other inflammatory disorders?

no

What single dose of acetaminophen can cause hepatic necrosis and death?

a single dose of greater than 15 mg/kg

What is the max daily dose of acetaminophen?

4 gms/day

What was the first selective COX 2 inhibitor?

Celecoxib (Celebrex)

Celecoxib (Celebrex) is recommended for the pain and inflammation associated with ____ and ____?

Rheumatoid arthritis and osteoarthritis

What medication is similar to celecoxib (celebrex)?

motrin

Why was Vioxx (Rofecoxib) withdrawn from the market?

Increased risk of heart attack and stroke aht W

What conditions was vioxx (rofecoxib) marketed to treat?

Osteoarthritis, acute pain conditions, and dysmenorrhea

Vioxx (Rofecoxib) work on the COX 1 or COX 2 part of the enzyme?

COX 2, because it's not keeping platelets from aggregating.

Bextra (Valdecoxib) was initially approved then discontinued for the treatment of what conditions?

Osteoarthritis, adult RA, primary dysmenorrhea



It was withdrawn because it was causing dysmenorrhea

What other condition was associated with Bextra (Valdecoxib)

Steven Johnson's syndrome

Which COX 2 inhibitor was never approved by the FDA? What makes it different than the others?

Parecoxib (Dynastat)


1. available in parental form


2. has no effect on platelet functionhtW


What is one of the most potent inhibitors of the COX enzyme?

Indomethicin

What 3 properties does indomethacin possess?

1. analgesic


2. antipyretic


3. anti-inflammatory

What is the DOC for ankylosing spondylitis and Reiter's syndrome?

Indomethacin

Indomethacin is the DOC for what condition's?

ankylosing spondylitis and Reiter's syndrome

What is ankylosing spondylitis and Reiter's Syndrome?

ankylosing spondylitis is a long term arthritis in the spine and pelvis



Reiter's syndrome is arthritic, eye swelling (conjunctivitis), women-cervical inflammation,


men-urethral inflammation

What acute condition is indomethacin used to treat?

gout

Why is indomethacin not used to treat chronic pain?

chronic gout needs the COX 2 enzyme

How is indomethacin used to treat acute gout? What doesn't it correct?

treats inflammation


it does not correct hyperuricemia

What infant abnormality can indomethacin correct with a single dose?

PDA- It closes the PDA

What drug is a substitute analogue of indomethacin?

Sulindac

What is the drug of choice for pt's with renal impairment issues? Why?

Sulindac, because it does not affect the renal synthesis of prostaglandins as much as other drugs



What drug is more potent than salicylates, but less potent than indomethacin?

Tolmetin (not on test)

Name 3 examples of Propionic Acid Derivatives?

Din


ibuprofen, naproxen, and diclofenac (Voltaren)

What conditions do propionic acid derivatives treat?

arthritis (gouty, rheumatoid, osteoarthritis)

What is unique about naproxen?

it has a uniquely long elimination half life (can dose it twice a day)

If someone is allergic to salisylates, what other type of medication are they allergic to?

propionic acid derivatives

Phenylbutazone is effective in treating what conditions?

gout and RA

This medication is very powerful and has toxic side effects and should be given for no longer than 7 days for acute pain.

Phenylbutazone

What are the side effects of phenylbutazone?

anemia


agranulocytosis


n/v


epigastric distress


gastric upset

This medication is different that other NSAIDs, it is more like salicylates and inhibits prostaglandin synthesis, and is used to reduce pain, swelling, and joint stiffness?

Piroxicam

What medication has potent analgesic effects and mild anti-inflammatory activity?

Toradol

Toradol 30 mg IM is the analgesia equivalent to?

morphine 10 mg


Demerol 100 mg

Does toradol effect ventilatory or cardiac depression?

no

Does toradol inhibit platelets?

yes

Waht conditions is toradol good to treat?

menstrual cramps


hystecectomies


D & C

Which drug is associated with Samter's Triad (Aspirin Triad)?

Toradol

What types of pts are susceptible to Samter's triad?

people with nasal polyps, asthma, and aspirin intolerant patients

What will happen if toradol is given to an asthma pt?

may cause bronchospasm and be life threatening

Should toradol be given to asthma pts?

no, they may bronchospasm and die

What is colchicine used to treat? How?

acute gouty arthritis, it decreases inflammation and pain

What is the medication that is unique for the prevention and treatment of gout?

Colchicine

Is colchicine a good analgesic?

No, it only treats inflammation.

What is the MOA of colchicine?

it pulls out uremic acid to where it can be excreted in urine and stool

What are some side effects of colchicine?

n/v


diarrhea


abdominal pain

What medication may prolong survival in cirrhosis?

Colchicine

What medication is the preferred therapy of primary hyperuricemia in gout?

Allopurinol

What are the most common side effects of allopurinol?

Maculopapular rash and itching

How many COX enzymes have been identified?

3

Which statement best describes the COX 2 enzyme?

highly inducible and production is boosted during the inflammatory process.

COX 2 inhibitors may produce a prothrombotic effect by their effect on which fatty acid?

thromboxane

Should one NSAID be taken with another NSAID?

No, it will increase the side effects

Should people taking warfarin and coumadin take NSAIDS?

Not generally, it puts them at increased risk of bleeding when both classes are taken together.

Is celebrex (celecoxib) okay to take with NSAIDs?

Should be taken with caution and under supervision of a clinician

What happens when ASA and NSAIDs are taken together?

May increase the risk of bleeding

What happens if phenytoin and NSAIDS are taken together?

The phenytoin level can increase

If ASA and NSAIDs are taken together, how should the ASA be taken to preserve the low dose ASA for the heart?

ASA should be taken at least two hours before the NSAID.

What risk is involved if cyclosporines and NSAIDs are taken to together?

theoretical risk of kidney damage

If people are taking NSAIDs and phenytoin together what lab test needs to be monitored and when?

phenytoin level should be drawn when starting or increasing the dose of an NSAID.

In addition to transplant pts, what other types of pts take cyclosporines?

Osteoarthritis and RA pts