Mid Term Review Flashcards
What is pharmacokinetics?
What body does to drug.
What is pharmacodynamics?
What drug does to body.
What is the first pass effect?
The concentration of a drug is greatly reduced before reaching systemic circulation
What is a prodrug?
A biologically inactive compound that can be metabolized in the body to produce a drug.
What are drug isomers?
Two or more different substances with same molecular formula.
What is bioavailability?
The extent a substance or drug becomes completley available to it’s intended biological destination
What is bioequivalence?
When two drugs prodouce the same effect, or two fromulations do.
What role does the cytochrome P450 enzyme system play in drug metabolism?
Poor metabolizers: toxic levels or poor effect
Rapid metabolizers: subtherapuetic levels
What do inducers do?
What do inhibitors do?
Inducers: inrease metabolism, decreaase effect
Inhibitors: decrease metabolism, increase effect
What is the primary site of drug elimination in the body?
Kidneys
What is the best measure of renal function to use when dosing medications?
GFR
What are the restrictions for schedule 2 medications?
No fax/phone.
90 days only.
No refills.
Who is at greatest risk for drug reactions and adverse effects?
Children and elderly.
What population does the Beers criteria apply to?
Those of 65
What is most common reasons a medication appears on Beer’s list?
causing falls/CNS sx
MOA for thiazide diuretics
inhibition of Na/Cl cotransporter in the renal distal tubule
Side effects of thiazide diuretics
dizziness blurred vision loss of appetite headache weakness
Monitoring parameters for thiazide diuretics
potassium
Cr Cl
MOA for Ace Inhibitors
inhibits conversation of angiotensin to renin
Side effects for Ace Inhibitors
cough hyperkalemia fatigue hypotension headache
Monitoring parameters for Ace Inhibitors
creatinine and potassium
MOA for ARBs
blocking receptors that AT 1 works on, heart, blood vessels, kidneys
Side effects of ARBs
less cough
less angioedema
Can’t use if pregnant
Monitoring parameters for ARBs
creatinine/K+
MOA for calcium channel blockers:
Dihydro
Non-Dihydro
Dihydro: more peripherally
Non-dihydro: mostly in heart
Side effects of CA channel blockers
avoid non-dihydro in low EF/HF
CYP inhibitors and drug reactions common in non-dihydro
Monitoring parameters for CA channel blockers
Ca
What class of medication can be used for treatment of nightmares and PTSD?
Alpha Blockers
Aldosterone antagonists spare what electrolyte?
Potassium
What are some unique adverse effects of aldosterone antagonists?
Diarrhea
High K+
Which drugs are high intensity statins?
Atorvastatin
Rosuvastatin
What is the most common side effect of statins?
Myalgias
What medication is preferred when treating hypertriglycerides and dyslipidemia?
Fenofibrate
Lovasa is used more as it is _____ purified and ____ likely to increase LDL.
More, less
Zetia can be used as ______ to statins.
Adjunct
What drug is now considered first line for CHF with reduced EF?
sacubitril/valsartan (Entresto)
Amniodarone has a side effect that is concerning:
pulmonary toxicity
Dronedarone
Less likely to cause pulmonary toxicity
Which antiarrythmic can only be given inpatient due to risk of QT prolongation?
Dofetilide (Ticasyn)
Match the insulins with their duration of action:
- Regular
- Glargine
- Lispro
- Degludec
- NPH
A. Rapid B. Short Acting C. Intermediate. D. Long Acting E. Ultra Long Acting
- B
- D
- A
- E
- C
MOA of metformin
Inhibition of hepatic glucose production
Side effects of metformin
GI symptoms
Monitoring parameters for metformin.
AIC
MOA for DPP4 inhibitors
Glucose dependent increase in insulin secretion.
Glucose dependent inhibition of glucagon secretion.
Side effects of DPP4 inhibitors
Minimal side effects, not very potent.
MOA for GLP-1
Glucose dependent insulin secretion
Glucose dependent decrease in glucagon secretion
decreased gastric emptying
increased satiety
Side effects for GLP-1
N/V
Weight Loss
Monitoring for GLP-1
Pancreatitis
Renal fct
MOA for SGLT
Reduces reabsorption of filtered glucose and lowers renal threshold for glucose, increased urinary glucose secretion (lowers plasma levels)
Side effects for SGLT
GU infections
Monitoring for SGLT
Renal fct
How do sulfonureas work?
Increasing secretion of insulin from pancreas
What are common side effects of sulfonureas?
hypoglycemia
weight gain
Which is the drug of choice for hypothyroidism?
Levothyroxine
What are administration needs for levothyroxine?
Morning: 30-60 min before breakfast
Methimazole is preferred for hypothyroidism because:
more potent
less toxicity
(not for pregnancy)
SABA: Albuterol
Max puffs per day
12
What med shoulc a patient using a SABA also be on?
ICS
LABA use in asthma.
Must be coupled with ICS.
What are adverse effects of ICS?
Thrush, hoarseness, impaired growth in children.
Montelukast, a leukotriene modifier, can be used in very young children, but poses what risk?
Neuropsychiatric symptoms
Name a couple of LAMAs
Spiriva
Ellipta
Tudorza
MOA of LAMA
anticholinergic
SE of LAMAs
dry mouth, dizziness
Oral option for COPD.
Roflumilast/Daliresp
Not a bronchodilator
What abx is sometimes used for COPD tx?
Azithromycin
_______ for productive cough.
________ for non productive cough.
Expectorant
Suppressant
Should you treat cough in patients under 6?
No
Which type of heparin is used more outpatient?
LMWH
What is the reversal agent for heparin?
Protamine Sulfate
What is the MOA for Warfarin?
Vit K antagonist
What monitoring is needed for coumadin?
INR
Does warfarin have many or few drug and food interactions?
Many
If INR is greater than 10….
Consider Vitamin K (phytoin)
Factor 10a inhibitors all have an ___ and ____ in their names.
X A
What are the two classes of DOACs?
Direct thrombin inhbitors
Factor Xa
What monitoring is required with DOACs?
Renal fct
Why is clopidegrel now preferred over ASA?
Lower risk of bleeding
What is the dose needed for daily ASA?
81 mg
Why is the metabolism of clopidegrel and important consideration?
Can by affected by CYP polymorphisms. Lowers efficacy.
What are some adverse effects of oral iron?
Darkened stools
Constipation
N/V
What are the administration routes for B12?
Oral, IM, SQ
What is the first line of treatment for GERD?
Lifestyle modifications
What are some adverse effects of antacids?
Chalky taste Blood sugar increase Renal dsyfct Constipation (aluminum) Diarrhea (magnesium)
What are some issues with using PPI long term?
decreased calcium
What is the primary concern with promotility agents?
Extrapyramidal side effects, especially TD
What is the most common cause of PUD?
H. Pylori
What is the most common cause of diarrhea?
Antibiotics
Which antidepressant is also approved for quitting smoking?
Bupropion
What are some limitations for rx remeron?
weight gain
sedation
Should you d/c an antidepressant abruptly?
No
What medication commonly paired with an SSRI can cause seratonin syndrome?
Trazadone
Are benzos thought to work quickly or long term?
Quickly
What populations should avoid the use of benzos?
Elderly
Hx of substance misuse
How long is it recommended to taper benzos?
more than a year: 3-4 mos
less than a year: 2-3 weeks
What are the drugs for sleep?
Z drugs
Beta 1 action primarily occurs in the:
heart
Beta 2 action occurs in the
lungs
One heart, two lungs
Alpha 1 acts on vascular smooth muscle, and…
genital smooth muscle
Alpha 2 acts on vascular smooth muscle and
platelet aggregation.