XL1 [Rx +] Flashcards
Albuterol
MOA (2)
[β2🟢] > [β1🟢]
agonist
for acute asthma
Albuterol
Indication
acute asthma
Salmeterol
Indication (2)
- chronic asthma
- chronic COPD
Salmeterol
MOA (2)
[β2🟢] > [β1🟢]
agonist
= chronic asthma / chronic COPD
doButamine
Indication (2)
- HF
- cardiac stress testing
doButamine
MOA (3)
- [β1🟢] > [β2🟢]
- [general α🟢]
Dopamine
MOA (4)
{([D1🟢 = D2🟢] >[general β🟢] > [general α🟢*]}
[inotropic & chronotropic (α)] predominates at high doses
Dopamine
Indication (3)
1.cardiogenic shock
2.HF
3.unstable bradycardia
{([D1🟢 = D2🟢] >[general β🟢] > [general α🟢]}⼀{HIGH dose → INC (α) effects }
Epinephrine
MOA (2)
- [(general β🟢{low concentration}]
> - [general α🟢{HIGH CONCENTRATION}]
“with low effort you’ll get a B….with HIGH EFFORT YOU’LL GET AN A”
✏️Epi is stronger at β2🟢 than NorEpi is at β2🟢
Epinephrine
Indication (6)
- ANAPHYLAXIS
- asthma
- angle-open glaucoma
- arrest (cardiac arrest)
- [a heart block]
- [A low bp (shock)]
[(general β🟢 ⬅︎ ⬇︎ Epi ⇪ → general α🟢]
“with low effort you’ll get a B….with HIGH EFFORT YOU’LL GET AN A”
Isoproterenol
MOA (2)
[(β1🟢 = β2🟢)]
NorEpinephrine
MOA (3)
[(α1🟢 > α2🟢 > β1🟢)]
NorEpinephrine
Indication
hypOtension(but note: NE⬇︎renal perfusion)
[(α1🟢 > α2🟢 > β1🟢)]
📝Epi is stronger at β2🟢 than NorEpi is at β2🟢
Isoproterenol
Indication
electrophysiologic eval of tachyarrhythmias🛑note: can worsen ischemia!
[(β1🟢 = β2🟢) ]
Phenylephrine
MOA (2)
[α1🟢] > [α2🟢]
([α1🟢] vasoconstriction can → [baroreceptor-reflex mediated bradycardia])
Phenylephrine
Indication (3)
- hypOtension
- myDriasis for ocular procedures
- rhinitis(PNE is also a decongestant)
[(α1🟢 > α2🟢)]
Amphetamine
MOA (2)
Indirect Sympathomimetic via:
1. [NE🔻reuptake inhibitor]
2. releases stored NE🚰
[InDirect Sympathomimetic] –(🔻 [⇪NE catecholamine]
Ephedrine
Indication (3)
- Nasal Decongestant
- urinary incontinence
- hypOtension
InDirect Sympathomimetic via [⇪ NE/E catecholamines]
Cocaine
MOA
[(NE🔻reuptake inhibitor) InDirect Sympathomimetic]
→ ⇪ adrenergic NE → ⇪ Sympathetic NS
❗️NEVER GIVE β🟥 if cocaine intoxication suspected since this may → unopposed α activation
Ephedrine
MOA
[(releases stored NE🚰) InDirect Sympathomimetic]
→ ⇪ adrenergic NE → ⇪ Sympathetic NS
Clonidine
MOA
[α2🟢]
sympatholytic
📝DECREASES Peripheral vasoconstriction CENTRALLY (inhibits sympathetics) but will have SOME INC peripheral vasoconstriction by acting directly in the PERIPHERAL BODY also
Clonidine
Indication (3)
- HTN Urgency
- ADHD
- Tourette syndrome
[α2🟢 sympathoLytic]
(does not ⬇︎Renal blood flow)
Clonidine
Toxicity (5)
- CNS depression
- [pupillary depression (miosis)]
- [cardiac depression (bradycardia)]
- [respiratory depression]
- vascular depression (hypOtension)
[α2🟢 sympathoLytic] ⼀ “Clonidine makes me depressed”
(does not ⬇︎Renal blood flow)
α-methyldopa
MOA
_________________
Indication
[α2🟢 sympathoLytic]
_________________
HTN in pregnancy
α-methyldopa
Toxicity (2)
can →
1. [⊕DAT hemolysis]
2. [SLE-like syndrome]
[α2🟢 sympathoLytic]
DAT = [Direct_Coombs AntiHumanglobulin Test]
pheNOxybenzamine
MOA
_________________
Indication
iiRREVERSIBLEgeneral α🟥
_________________
[Px for HTN catecholamine crisis] in [Pheochromocytoma resection]
given preop
[(pheNOxybenzamine) = NO reversing ]
phentolamine
MOA
_________________
Indication
REVERSIBLEgeneral α🟥
_________________
[Px for HTN catecholamine crisis] in [MAOI pts who eat tyramine containing food]
“OF COURSE THIS TOLL BOOTH TICKET IS REVERSIBLE!”
pheNOxybenzamine and phentolamine
side effects (2)
- orthostatic hypOtension
- reflex tachycardia
[DEPT”-osin “]
MOA
α1🟥
🔎{[DEPT“-osin “] = DoxazOSIN \ tErazOSIN \ PrazOSIN \ TamsulOSIN}
[DEPT”-osin “]
Indication(s) (3)
[DEPT”-osin “]
1. [BPH Urinary sx (DEPT)]
2. [PTSD (P)]
3. [HTN (DEP)]
α1🟥
🔎{[DEPT“-osin “] = DoxazOSIN \ tErazOSIN \ PrazOSIN \ TamsulOSIN}
Mirtazapine
MOA
α2🟥
Mirtazapine
Indication
Depression
α2🟥
Mirtazapine
Side Effects (3)
- sedation
- HLD
- hunger
α2🟥
[DEPT”-osin “]
Side Effects (3)
DoxazOSIN \ tErazOSIN \ PrazOSIN \ TamsulOSIN
[DEPT”-osin “]
1. [1st dose orthostatic hypOtension (DEPT)]
2.[dizziness (DEPT)]
3.[HA (DEPT)]
α1🟥
{[DEPT“-osin “] = DoxazOSIN \ tErazOSIN \ PrazOSIN \ TamsulOSIN}
Receptors are divided into [5 major groups (CADHV)]
Describe the 2 types of Cholinergic receptors
▶Nicotinic (autoNomic vs neuroMuscular): ACh Receptors that are Na+/K+ channels
▶Muscarinic (M1,M2,M3,M4/M5): ACh Receptors that are {[G protein coupled R (M1,M2,M3 require 2nd messenger systems [q|i|s])}
function
α1(3)
sympathetic Receptor
[Vascular smooth muscle ctn (vasoconstricts)]
[Internal Urethral Sphincter ctn & Intestinal ctn]
[Dilator of pupil (myDriasis)]
“Give me the alpha 1 VID…”
📖Dilates pupil via [contracts pupillary Dilator m (myDriasis)]
🔎ctn = contraction
Receptors are divided into [5 major groups (CADHV)]
Describe the 2 types of Adrenergic receptors
▶αlphaadrenergic : Sympathetic NE Receptors (α1, α2 requireq|i|s2nd messenger)
▶βetaadrenergic: Sympathetic NE Receptors (β1, β2 requireq|i|s2nd messenger)
Name the 5 major Receptor groups
(CADHV)Receptors
Cholinergic
[Adrenergic SYMPATHETIC]
Dopaminergic
Histaminergic
Vasopressin
function
α2(5)
Receptor
⇪ Coagulation (via ⇪ Platelet aggregation)]
_________________
[⬇︎lipolysis (⬇︎fat breakdown)]
⬇︎aqueous humor production
[⬇︎sympathetic (via neg feedback)]
[⬇︎sugar cell entry (via ⬇︎ INSULIN release)]
“…Give her the {αlpha 2 Class}”!
function
β1(4)
sympathetic Receptor
⇪ Contractility Heart
⇪ Rate Heart
[⇪Adipocyte lipolysis]
⇪ Kidney RENIN release
“* βeta1 ⇪ CRAK*”
function
β2 (7)
sympathetic Receptor
⇪ {[VasoDilates autonomic smooth m] [Tremors somatic skeletal m]}
⇪ Aqueous humor production
[⇪BronchoDilation]
[⇪Uterine Relaxation (tocolysis)]
[⇪ Lipolysis & Liver Glycogenolysis]
⇪ Insulin release
⇪ Ciliary m Relaxation
“…βeta2 ⇪ VABULIC!!”
👓gProtein: (s)
function
M1 (2)
ParaSympathetic Receptor
- CNS
- ENS
“
👓gProtein: (q)
🔎ENS = Enteric Nervous System
function
M2 (2)
ParaSympathetic Receptor
- ⬇︎HR
- ⬇︎Heart Contractility
👓gProtein: (i)
function
M3 (6)
ParaSympathetic Receptor
- [Gut peristalsis ⇪]
- [Accommodation (contracts ciliary m)]
- [Miosis (contracts pupillary sphincter m)]
- Bladder contraction
- [Lung contraction (bronchoconstriction)]
- [Exocrine secretion (salivary/lacrimal/gastric acid)]
“M3s took a huge GAMBLE”
👓gProtein: (q)
function
D1
Receptor
renal vasoDilation
👓gProtein: (s)
function
D2
Receptor
inhibits nerve terminal adenyl cyclase = modulates (especially brain) NTS release
👓gProtein: (i)
function
H2
Receptor
⇪ Gastric acid secretion
👓gProtein: (s)
function
H1 (6)
Receptor
- ⇪ Production of nasal mucus
- ⇪ Production bronchial mucus
- [⇪ Permeability vascularly → edema]
- ⇪ Pruritus
- ⇪ Petit breathing (bronchoconstriction)]
- ⇪ Pain
👓gProtein: (q)
function
V1
vasopressin Receptor
vasoconstriction
👓gProtein: (q)
function
V2
vasopressin Receptor
⇪ H2O permeability&reabsorption in renal CD
👓gProtein: (s)
Name the 3 types of opioid receptors
MOA of opioid receptors (4)
[morphine|enkephalin |dynorphin opioid Receptors
_________________
{[opens K+ channels] and [closes Ca+ channels]}
→ [⬇︎synaptic transmission]
→ {⬇︎release of [ACh/norEpi/5HT/glutamate/substance-P]}
(TOXICITY → somnolence, miosis, bradypnea, constipation, Addiction )
Butorphanol
MOA (2)
[dynorphinopioid🟢] + [morphine (partial) opioid R agonist]
has less respiratory depression than FULL opioid R agonist
note: OD not easily reversed with nalaxone
Tramadol
MOA (3)
- [very weak opioid🟢]
- [5HT🔺reuptake inhibitor]
- [NorEpi🔺 reuptake inhibitor]
(TOXICITY → seizure, serotonin syndrome + same as other opioid TOX)
Ethosuximide
MOA
[(Thalamic)T-type Ca+ channel Blocker]
Benzodiazepine
MOA
⇪ GABAA effect
Phenytoin
MOA
Na+ channel inactivation(zero order kinetics)
✏️ IV requires Fosphenytoin
MOA for the [1st line tx of trigeminal neuralgia]
Carbamazepine
[⇪ Na+ channel inactivation]
✏️also used for: simple partial/complex partial/GTC
MOA for the anti-epileptic also used to treat bipolar depression (2)
Valproic acid
1. [ ⇪ Na+ channel inactivation]
2. [inhibits GABA transaminase → ⇪ GABA concentration]
MOA for anti-epileptic also used to treat peripheral neuropathy (2)
GABApentin
1. [inhibits high voltage gated Ca+ channels]
2. GABA analog
(indications: peripheral neruopathy, postherpetic neuralgia, simple szure, complex szure)
MOA for the anti-epileptic also used to prevent Migraine HA (2)
Topiramate
1. [Na+ channel blocker] antiepileptic
2. [ ⇪ GABA effect]
Lamotrigine
MOA
_________________
notable precaution?
[Na+ channel blocker] antiepileptic
_________________
[(must be titrated slowly) ⼀otherwise possible → Stevens-Johnson syndrome]
Levetiracetam
MOA
unknown
(antiepileptic that possibly modulates GABA and glutamate)
TiaGabine
MOA
_________________
Indication (2)
[GABA🔻reuptake inhibitor] antiepileptic
_________________
1. simple partial seizure
2. complex partial seizure
VigaBatrin
MOA
_________________
Indication (2)
[iiRREVERSIBLYinhibits GABA transaminase ➜ ⇪ GABA ] antiepileptic
_________________
1. simple partial seizure
2. complex partial seizure
Describe cp for Steven Johnson Syndrome (3)
_________________
Which drugs are known to cause Steven Johnson Syndrome? (4)
{[malaise and fever] –(rapid)–> [(ocular/oral/genital) erythematous/purpuric macules] → [epidermal necrosis and sloughing]}
_________________
1. [antiepileptics (esp. lamotrigine)]
2. allopurinol
3. sulfa
4. PCN
Steven Johnson has epileptic allergy to sulfa and PCN
What is the difference in MOA between Barbiturates and Benzodiazepines
B(A)RB = potentiates GABAA by ⇪ dur(A)tion of [GABA Cl-channel] opening
_________________
B(E)NZO =
1. potentiates GABAA by ⇪ fr(E)quency of [GABA Cl- channel] opening
2. ⬇︎REM sleep
3. ATOM are short acting benzo ➜ addictive!
(ATOM = Alprazolam/Triazolam/Oxazepam/Midazolam)
Nonbenzo hypnotics act as ⬜ and the 3 primary examples are ⬜
[(BZ1 GABA subtype) R agonist]; Zolpidem/Zaleplon/esZopiclone
✏️rapid hepatic metabolism = unlike other sedative-hypnotics, day after psychomotor depression with few amnestic effects
In Anesthesia, drugs with high blood/lipid solubility have ⬜ induction and ⬜ potency
slow; high
Define M.A.C. in terms of anesthesia
Minimal Alveolar Concentration (of anesthesia) required to prevent 50% of subjects from moving after noxious stimuli
..so [potency = 1/MAC]
Name and briefly describe each of the 5 [IV anesthetics]
[Barbiturates (Thiopental)] = high lipid solubility = high potency = rapid brain entry = use in short surgical procedures
_________________
[Benzodiazepine (Midazolam)]] = ⭐popular for endoscopy ⼀but may → postop bradypnea (tx = flumazenil)
_________________
[Ketamine/Arylcyclohexylamines] = [NMDA R Blocker PCP analog] → dissociative anesthesia
_________________
Opioids(Morphine|fentanyl)
_________________
PropoFOL = potentiates GABAA = rapid anesthesia induction, ICU sedation
“B. B. King on OPIOIDS PROPOses-FOLgers”
Name and describe the 6 local anesthetics
“BLM locally anesthetizes CPT”
“BLM = Amides (will have 2 i)
BupivAcaine
LIdocaine
MepivAcaine
_________________
“CPT” = Esters”
Cocaine
Procaine
Tetracaine
Succinylcholine
MOA
[strongACh R agonist] → blocks (by binding tightly to ) [NMJ postsynpatic ACh R] → sustained depolarization → prevents [NMJ action potential] → prevents muscle contraction = paralysis
Toxicity = HYPERKFC
how does reversal of Succinylcholine work? (2)
[phase 1 PD] = no antidote
= (🛑[cholinesterase inhibitors] will exacerbate block}
_________________
[phase 2 RD] = (✅give [cholinesterase inhibitors])
=ACh R have repolarized now ⼀but still desensitized
📖
[phase 1 Prolonged Depolarization] =ACh R are bound tight by Sux and undergoing PD = no antidote = (🛑[cholinesterase inhibitors] will exacerbate block}
_________________
[phase 2 Repolarized (but) Desensitized] = ACh R have repolarized now ⼀but still desensitized = (✅give [cholinesterase inhibitors]) →flood and resensitize R with ACh substrate
Succinylcholine
Toxicity (3)
- [HYPER K+]
- [HYPER Fever (MMalignant Hyperthermia)]
- [HYPER Ca+]
“HYPERKFC”
There are 2 types of paralytic agents: depolarizing vs nondepolarizing
a: describe MOA for nondepolarizing paralytic drugs
_________________
b. describe reversal process (2)
{tubocurarine or [(⼀curium) drugs]} = nondepolarizing competitive inhibitors against ACh for [NMJ postsynaptic ACh R]
_________________
Reversal =
▶give [AChE inhibitors(neostigmine/edrophonium) ] → reverses blockade
▶but (neostigmine) may also cause [acute cholinergic tox (DUMBBELSS)] = co-admin with Atropine
Local Anesthetics
MOA (4)
“BLM locally anesthetizes CPT”
- [preferentially blocks activated Na+ channels] = targets & blocks rapid firing neurons = inhibits depolarization of highly active (painful) tissue
- infected tissue requires ⇪ local anesthesia*
- order of loss = PETS (1st Pain → tEmp → Touch → last preSsure) and [myelinated small] > unmyelinated LARGEa]}7
- give with epinephreine vasoconstrictor = [enhances local action (by preventing systemic circulation)] +
“BLM locally anesthetizes CPT”
Local Anesthetics
Toxicity (6)
“BLM locally anesthetizes CPT”
- [CNS ❌]
- [CV❌(bupivacaine)]
- [arrhythmias(Cocaine)
- [methemoglobinemia(benzocaine)]
- HTN
- hypOtension
✏️(if allergic to [*ester*local anesthetic] give [*amide*local anesthetic])
Dantrolene
MOA
_________________
Indication (2)
prevents release of Ca+ from [sk muscle sarcoplasmic reticulum]
_________________
1. [MMalignant Hyperthemia]
2. [Neuroleptic Malignant Syndrome]
Baclofen
MOA
_________________
Indication
Inhibits [spinal cord GABAB R] → sk muscle relaxer
_________________
[Muscle spasm(ie acute low back pain)]
muscle relaxer
Cyclobenzaprine
MOA (2)
_________________
Indication
[(TCA-cousin✏️) with anticholinergic effect] + [centrally acting sk muscle relaxer]
_________________
[Muscle spasm(ie acute low back pain)]
muscle relaxer
📝Cyclobenzaprine is structurally similar to (and has similar anticholinergic effect) as TCA
(-triptans)
MOA (4)
.
⭐[5HT(1B/1D)🟢] →
🔧Inhibits trigeminal n activation
🔧inhibits vasoactive peptide release
🔧induces vasoconstriction
TOX: [Coronary Vasospasm (CTD in CAD/Prinzmetal angina)], paresthesia
Why is Sumatriptan contraindicated in patients with ⬜(2) ?
CAD | Prinzmetal angina
_________________
(⼀triptans) cause Coronary Vasospasm
sulfa drug allergy ranges from mild to fatal
Name the 8 Sulfa drug groups
- Sulfonamide abx
- Sulfasalazine
- Sulfonylurea
- Probenacid
- Furosemide
- Acetazolamide
- Celecoxib
- Thiazides
“Sulfa Sounding Serious? Popular FACT”
Name 3 drugs that in addition to their primary MOA secondarily also are [Muscarinic R Blockers]
- TCA
- [H1🟥]
- antipsychotics
Which drugs produce [Disulfiram-like reactions]? (5)
- metronidazole
- cephalosporins(select)
- griseofulvin
- procarbazine
- Sulfonylurea1st GEN
How should Warfarin be adjusted if a patient starts taking amiodarone?
⬇︎Warfarin by 25% (since amiodarone inhibits CYP2C9)
Metformin can dangerously cause ⬜
Name Metformin contraindications? -5
________________
how is iodine contrast related to Metformin?
lactic acidosis ;
- renal failure
- liver dysfxn
- EtOH abuse
- sepsis
- CHF (especially if GFR < 30)
________________
[large dose IV iodine contrast] ⇪ lactic acidosis risk … so Metformin IS HELD ON DAY contrast is given ➜ Metformin restarted 2 days later
________________
common SE = GI upset and VB12 malabsorption
Pindolol
a. MOA (2)
_________________
b. explain its Indication
a. {[general β🟥] but also is <partial [general β🟢]>}!
_________________
b. because <part of general β R are stimulated> → less [“general β🟥 BRADYCARDIC effect “] = give to patients with poor tolerance to [“β🟥 BRADYCARDIC effect” or reduced exercise capacity]
What 6 drugs make up the Amphetamine family?
- Amphetamine
- Methamphetamine
- Ephedrine
- Pseudoephedrine
- Methylphenidate
- Tyramine 👀
📝Tyramine displaces NE. It is catabolized by MAO. [MAO inhibitors] can → ⇪ Tyramine which may → HTN crisis
[general β🟥]
Toxicity (6)
- Bronchospasm
- Bradycardia
- CNS depression
- CNS insomnia
- MASK sx of hypOglycemia
- TAG ⇪
List the 5 drugs eliminated by COMT
_________________
Which 2 are special? why?
- doButamine
- isoproterenol
- NOREPINEPHRINE⭐
- epi
- DOPAMINE⭐
[⭐= eliminated by COMT and MAO]
“COMT d.i.N.e.D on 5 drugs”
a: How does Cell/Tissue Damage lead to Pain/Inflammation/Fever?
a1: Damage induces ⬜ to produce ⬜
a2: ⬜ binds to Cyclooxygenase and is converted into ⬜
a3: ⬜ is then modified by multiple syntheses into
what 3 major compounds?
a4: ⬜ can then go to induce pain/inflammation/fever.
B: What is the rate limiting step for this reaction?
1: Damage induces [Phospholipase A2] to produce [Arachidonic Acid]
2: ⭐[Arachidonic Acid] binds to [COX (Cyclooxygenase)] and is converted into [Prostaglandin H2] = RATE LIMITING STEP! ⭐
3: [Prostaglandin H2] is then modified by multiple syntheses into
- [PGi2 Prostacyclin]
- [Prostaglandin E2]
- [TXA2 Thromboxane]
4: [Prostaglandins] can then go to induce pain(via central/peripheral pain sensitization) /inflammation/fever
B: What is the rate limiting step for this reaction?
[Arachidonic Acid] conversation into [PGH2] by Cyclooxygenase
describe how COX1 and COX2 are different in terms of tissue expression
*📝
-COX1 = HIGH constitutive expression and located ubiquitously⼀in most tissue
-COX2 = low constitutive expression = generally has to be induced (by proinflammatory stimuli)
[ASA Aspirin]
MOA (3)
- IRREVERSIBLE
- NON-Competitive
- COX inhibitor
📝
-COX1 = HIGH constitutive expression and located ubiquitously⼀in most tissue
-COX2 = low constitutive expression = generally has to be induced (by proinflammatory stimuli)
A: What is another name for PGi2?
B: What are its roles? (2)
C: Endothelial cells express COX1 or COXTWO? What are the primary compounds produced from Endothelial cells?
A: Prostacyclin!
B:
1) VasoDilates
2) INHIBITS Clotting
C: Endothelial cells express BOTH COX1 and COXTWO!
They primarily produce only {[PGi2 Prostacyclin] and [PGE2]} because Endothelial cells do NOT contain [Thromboxane synthase]
“(PGi2 Prostacyclin) | (PGE2) “
Elucidate the steps of Fever Production starting with Tissue Damage
- Damaged Tissue produces [⬜ and ⬜ ] which travels to the CNS
- [⬜ and ⬜ ] stimulate endothelial cells of the [⬜ blood vessels] to express ⬜ and [⬜ synthase]
- ⬜ and ⬜ in the endothelial cells of the [⬜ blood vessel] produce [⬜ ] which goes to stimulate hypOthalamus to INC body temperature
- Damaged Tissue produces [IL-1 and TNFa] which travels to the CNS
- [IL-1 and TNFa] stimulate endothelial cells of the [hypOthalamus blood vessels] to express COXTWO and [PGE synthase]
- [COXTWO and PGEsynthase] in the endothelial cells of the [hypOthalamus blood vessel] produce [Prostaglandin E2] which goes to stimulate hypOthalamus to INC body temperature
Name the 3 Groups of NSAIDs
- Aspirin/Salicylates
- Traditional Non-Selective NSAIDs (ibuprofen)
- Coxibs (COX inhibitors)
COX1
A: Physiological Role (4)
B: What compounds do COX1 produce that facilitate these roles?
HOUSEKEEPING:
1. Platelet Regulation (monitors blood clotting)
- Kidney Function
- Cytoprotection of Stomach by regulating Acid/Mucus production & [gastric blood flow]
- Maintains Patent Ductus Arteriosus for Fetus and stimulates [Uterine contractions during labor (involves PGF2a) ]
(COX1 is NOT inhibited by Celecoxib)
B: [PGE2/PGi2]
COX-TWO
Physiological Role
PRO-INFLAMMATORY RESPONSE (Mitogenesis and Signaling)
A: Platelets express ONLY _____[COX⬜] but primarily produce ________.
B: What are the roles of the compound produced? (2)
A: Platelets express ONLY COX1 but primarily produce [Thromboxane].
B: What are the roles of the compound produced? (2)
1) vasoconstricts
2) promotes clotting
A: Why is PGi2 particularly important in Pt with Renal Dz or Heart Failure? (3)
B: Is [ ______-medicated acute renal failure] caused by taking NSAIDs in a diseased state, reversible?
A: [Renal Dz and Heart Failure]—> INC Renal VasoCONSTRICTORS. [PGi2] is a vasodilator that will
- INC Renal Blood flow to prevent Renal ischemia
- INC GFR
- INC water and Na+ excretion
B: Is [ HEMODYNAMICALLY-medicated acute renal failure] caused by taking NSAIDs in a diseased state, reversible?
->YES! JUST TAKE THEM OFF OF THE NSAIDS!
A: Why is Aspirin READILY absorbed in the stomach and [upper small intestine]?
ASA (AcetylSalicylicAcid) is a weak acid and in the acidic environment of the stomach it will be in a [NEUTRAL PROTONATED FORM]—> Allows EASY ABSORPTION!
Aspirin Recommended Dosing
- Anti-Platelet activity = ⬜ dose
- Anti-Pyretic = ⬜ dose
- Analgesic = ⬜ dose
- Anti-Inflammation= ⬜ dose
Aspirin Recommended Dosing
- Anti-Platelet activity = [81mg qD]
_________________ - Anti-Pyretic(must cross BBB) = [400mg BID]
_________________ - ]Anti-Pain (Analgesic)] = [400mg BID]
_________________ - [Anti-Puff (anti-Inflammation)= [4,000mg - 6,000mg qD]
A: Why is concurrently taking [Salicylates/Aspirin] and Warfarin OR Sulfonylureas contraindicated?
B: Sulfonylurea Toxicity —> ⬜
[Salicylates/Aspirin] are 50-90% Protein bound once they enter the serum. This will DISPLACE other very protein bound drugs like WARFARIN OR Sulfonylureas—-> Warfarin/Sulfonylurea Toxicity!
B: Sulfonylurea toxicity —-> hypOglycemia
How do you treat Salicylate OVERDOSE and why?
Alkalinize the Urine (make urine more basic) —>cause Salicylate to convert into its [DeProtonated CHARGED Form] —> Trap it in the urine—> INC Excretion and prevents renal Absorption
A: Ibuprofen has a _____[slow/rapid] onset of ____ min and is _____[better/least] tolerated than Aspirin even though it is just as _____.
B: INDICATIONS (2)
Ibuprofen has a RAPID onset of [15-30 min] and is BETTER tolerated than Aspirin even though it is just as potent.
INDICATIONS:
- Fever
- Acute Pain
A: Naproxen is ___ times more potent than aspirin and has a RAPID onset of ____ min.
B: Naproxen has a serum half life of ___ hours which allows for _____ dosing
C: Naproxen is an extremely ideal _______
A: Naproxen is 20 x more potent than aspirin and has a RAPID onset of 60 min.
B: Naproxen has a serum half life of 14 hours which allows for twice/day dosing
C: Naproxen is an extremely ideal Anti-Pyretic
INDOMETHACIN
A: Primary Indications (3)
B: Cons
A: Indication
1) NSAID Used to promote closure of [Fetal Ductus Arteriosus]
2) 10-40 x more potent than Aspirin at anti-inflammation
3) Inhibits neutrophil mobility
B: Cons
(x) NOT TOLERATED AS WELL AS IBUPROFEN-Toxicity limits usage
KETOLORAC
A: Primary Indication
B: What can this NSAID replace?
A: Indication:
[Intravenous NSAID] that treats post-surgical pain
B: Can be used as an Opioid Replacement Drug
DICLOFENAC
B: What’s the cons of this drug and its class?
A: DICLOFENAC= Relatively Selective COXTWO Inhibitor
B: [COXTWO Inhibitors] INC chances of Stroke/Heart Dz!!
What are 2 ASPIRIN-Specific Adverse Effects?
- Reye’s syndrome (occurs in genetic subset of children/teens who take Aspirin during a viral infection) = FATAL degenerative liver dz associated w/encephalitis
- INC Risk of Gout
A: What is the most common adverse effect reported for [tNSAIDs & (Aspirin/Salicylates) ] ?
B: How do [tNSAIDs & (Aspirin/Salicylates) ] cause Gastric damage? (2)
C: How do you treat [tNSAIDs & (Aspirin/Salicylates) ] induced Gastric damage? (2)
B:
1) DIRECTLY damage gastric epithelium from being ion trapped in the compartment sometimes
C: Treatment:
-Misoprostol = PGE1 in a pill [CAN NOT GIVE TO PREGNANT WOMAN SINCE IT INDUCES ABORTION]
-Omeprazole
A: [Acute interstitial nephritis and Nephrotic Syndrome]
B: Who does this occur most in/
A: RARE but important clinical syndrome associated with IDIOPATHIC Glomerular [inflammatory cell infiltration] / proteinuria and NV. Caused by month exposure to NSAIDs!
-Pt recovers once NSAIDs are discontinued
B: Occur most in Women and Elderly
[CHRONIC interstitial nephritis and Analgesic Nephropathy]
A: Caused by CHRONIC Daily OVER USE of NSAIDs which leads to Chronic Renal Ischemia—> ESRD
ESRD= End Stage Renal Dz
A: What is [NSAID Hypersensitivity]?
B: What are the sx and what is the onset?
A: NON-IMMUNE inflammatory attack that occurs when pt takes [Aspirin / tNSAIDs/ COXTWO inhibitors]. Arachidonic acid accumulation–> Leukotriene production–> [airway hypersensitivity rxn]
B: Rapid Severe asthma attack that onsets 30-60 min after intake
NSAIDs taken in pregnant women after ____ weeks gestation can cause [Premature Ductus Arteriosus ____] in the fetus
NSAIDs taken in pregnant women after 30 weeks gestation can cause [Premature Ductus Arteriosus CLOSURE] in the fetus
A: COXTWO inhibitors such as Celecoxib are BEST used for what 3 circumstances?
B: What type of effect does [COXTWO inhibitors] have on Kidneys?
C: Why is Celecoxib NOT a first-choice NSAID?
A: COXTWO inhibitors such as Celecoxib are BEST used for
- [Rheumatoid Arthritis]
- Osteoarthritis
- Pt who are at higher risk for GI bleeds
B: [COXTWO inhibitors] have SAME NEPHROTOXICITY as tNSAIDS and [Aspirin/Salicylates] because Kidneys constitutively express COXTWO and need it
C: Celecoxib significantly Increases Stroke/Heart Dz probability and so is NOT a 1st choice NSAID
Which 3 Drugs have Dangerous impaired Renal Clearance due to NSAID usage?
- Lithium
- Methotrexate
- [Gentamicin-Aminoglycoside]
A: Acetaminophen is metabolized into its active metabolite (______) which inhibits ______ AND activates the ______ system—> DEC Fever & Pain
B: Acetaminophen is not a good anti-______ or anti-______ because it does not inhibit ________. This is due to [peripheral ______] that quickly degrade it in the periphery only
C: How does Acetaminophen affect the Kidneys and GI system?
A: Acetaminophen is metabolized into its active metabolite (AM404) which inhibits CNS COXTWO AND activates the cannabinoid system—> DEC Fever & Pain
B: Acetaminophen is not a good anti-inflammatory or anti-platelet because it does not inhibit [Peripheral COX1 or COXTWO]. This is due to [peripheral HydroPerOxides] that quickly degrade it
C: How does Acetaminophen affect the Kidneys and GI system?
:-) It safe for both due to inability to act on [Peripheral COX1 and COXTWO]
Pralidoxime:
Mechanism of Action
Peripheral AchE reactivator
Pralidoxime:
Rx
Respiratory muscle weakness in organophosphate poisoning
[Tx for organophosphate poisoning/serine gas - reactivation of alkylphosphorylated AChE with Pralidoxime Chloride (2-PAM) ]
Baclofen:
Mechanism of Action
GABA agonist
Inhibits neurotransmitter
release from skeletal muscle sensory afferent- (by inhibiting calcium influx and therefore reducing the release of excitatory transmitters)
General for benzodiazepines
(Diazepam, cloneazepam…)
Mechanism of Action (1):
Facilitate GABA mediated pre-synaptic inhibition
Rocuronium
MOA
[Non-Depolarizing Muscular Nicotinic BLOCKER]
Rocuronium
Location of Elimination
Liver
Vecuronium
MOA
[Non-Depolarizing Muscular Nicotinic BLOCKER]
Bromocriptine
Mechanism of Action
D2 Agonist
Selegiline
Mechanism of Action
MAO-b inhibitor
Methylphenidate
Mechanism of Action
Dopamine reuptake inhibitor
Mu (OP3)
Locations (6)
Brain:
- cortex (lamina III-IV)
- Thalamus
- Striosomes
- periaqueductal gray
Spinal Cord
- substantial gelatinosa
-Intestinal tract
Mu - subtype 1
Function (2)
- Supraspinal analgesia
- physical dependence
Mu - subtype 2
Function (5)
- Respiratory depression
- miosis
- euphoria
- reduced GI mobility
- physical dependence
” Mu2 was a kinda GRUMP “
Mu - subtype 3
Function
unknown
Naloxone
Receptors - antagonist/agonist (3)
mu-R: antagonist
Delta-R: antagonist
Kappa-R:antagonist
MethaDone
Receptor - Antagonist/agonist (2)
mu - agonist
delta- agonist
- (M)etha(D)one *
MethaDone
Side effects
Firm occupancy of opioid receptors by MethaDone ____ (INC/DEC) desire for other opioid intake, because it is producing a _______ but ___ (INC/DEC) effect which attenuates withdrawal manifestations.
dependence
Firm occupancy of opioid receptors by MethaDone DEC desire for other opioid intake, because it is producing a LONGER but DEC EFFECT which attenuates withdrawal manifestations.
MethaDone
Function
Treats Opioid Dependence
Tizanidine
Physiological effect:
[CENTRAL a2 agonist] that acts on pre and post-synpatic nerves of Spinal Cord —> Inhibition
Dantrolene
Physiological Actions
Blocks calcium release from SR of skeletal muscle
Dantrolene
Indications (5)
- SPASMS 2º to Stroke
- SPASMS 2º to Spinal Cord Injury
- Malignant Hyperthermia
- Cerebral Palsy
- Multiple Sclerosis
Metaclopramide
MOA:
Side effects (2) :
MOA: [D2 Blocker] with some [5HT4 agonist]
SE: [Focal dystonia], Akathisia, [Tardive Dystonia after 3 months]
M.SE.FAT
Metaclopramide:
Contraindications:
Contraindications: long-term rx (3 months
can cause tardive dyskinesia)
Trazadone MOA (2)
[5-HT2A/2C BLOCKER] + SSRI
Trazadone Indications (2)
Anxiety/depression
Trazadone
SE
Warning of suicidality in young adults at initiation of treatment
Trazadone
Contraindicaitons
MAO inhibitors
Nociceptin receptor
(OP4)
Subtypes
ORL1
Nociceptin receptor location (7)
Brain:
- Cortex
- Amygdala
- hippocampus
- septal nuclei
- habenula
- hypothalamus
Spinal cord
Nociceptin function (3)
- anxiety
- depression
- appetite
Pentazocin
Receptor subtypes and action
m-receptor: antagonist
d-receptor: agonist
K-receptor: agonist
Pentazocin
Indications
Dental extraction
Buspirone
Mechanism of Action
5-HT1A partial agonist
Sumatriptan
Mechanism of Action
5-HT1D agonist
Sumatriptan
Rx
Migraine
Sumatriptan
Side Effects
Coronary vasoconstriction
Risperidone
Mechanism of Action
5-HT2A/2C BLOCKER
Risperidone
Rx (2)
- Depression
- Psychosis
Risperidone
Side Effects (2)
- Akathisia (also occurs as Metaclopramide SE)
2. Weight Gain
Delta (OP1)
Function (3)
- Analgesia
- Antidepressant effects
- Physical dependence
Kappa (OP2)
Function (5)
- Miosis (and MEPERIDINE uses this receptor)
- Inhibits ADH release
- Sedation
- Spinal Analgesia
-Dysphoria
” [MISS D] loved her some Kappas”
Morphine
receptor type
Mu
Morphine
Indication
severe pain
Meperidine
Receptor type
Kappa receptor
Meperidine
Indication
Severe pain
Meperidine
Side Effects (4)
- Seizure
- Dysphoria
- Tremor
- Respiratory Depression
Meperidine
Other Notes (2)
1) Also binds: K+ channels, Muscarinic receptors, Dopamine transporter
2) Do not use Naloxone as andtidote
Hydrocodone
Receptor types (2)
Mu
Delta
Hydrocodone
Indication (2)
- Moderate pain
2. Coughing (anti-tussive)
Hydrocodone
Side Effects (3)
- Constipation
- Respiratory Depression
- Nausea
Codeine
Receptor type
Mu receptor
Codeine (4)
Indications
- Irritable Bowel Syndrome
- Narcolepsy
- Diarrhea
- Cough
“Why would I need Codeine [IN DC] ? “
Codeine
Side Effects (5)
- Euphoria
- Itching
- Urinary Retention
- Depression
- Constipation
Codeine
Other Note
Active metabolite is morphine
Procaine (HCl)
Potency
1
Procaine (HCl)
Anesthetic Use
Infiltrative Nerve Block: Subarachnoid
Cocaine (HCl)
Potency
2
Cocaine (HCl)
Onset of Analgesia
Rapid (1 min)
Cocaine (HCl)
Duration of Action
Medium (1 hr)
Cocaine (HCl)
Anesthetic Use
Topical
Easily absorbed through mucous membrane
Tetracaine (HCl)
Potency
16
Tetracaine (HCl)
Onset of Analgesia
Slow for Spinal (15 - 20 min)
Tetracaine (HCl)
Duration of Action
Long (2-5 hr)
Tetracaine (HCl)
Anesthetic Use
Subarachnoid
Benzocaine
Potency
(Topical use only)
poorly water soluble
dusting powder/ointment for wounds without concerns for systemic toxicity
Lidocaine (HCl)
(Xylocaine)
Potency
4
Lidocaine (HCl)
(Xylocaine)
Onset of Analgesic
Rapid
Lidocaine (HCl)
(Xylocaine)
Duration of Action
Medium (1.25 hr)
Lidocaine (HCl)
(Xylocaine)
Anesthetic Use (4 Locations of Administration)
Infiltrative Nerve Block: Intravenous- Epidural Subarachnoid Regional
Ketamine
MOA
[NMDA RECEPTOR BLOCKER]
Ketamine
Description of anesthesia
Dissociative anesthesia
Ketamine
Physiological effects (6)
INCREASES in:
- CMR O2 (Cerebral Metabolic Rate)
- HR
- Intra Cranial Pressure (ICP)
- Cerebral Blood Flow
- BP
- BronchoDilation
” Ketamine INC that [C.H.I.C. BP] “
A: List the 4 Systemic Effects of Propofol?
B: How is Propofol administered?
A:
1) DEC Intracranial Pressure
2) DEC CMRO2 of the brain
3) Vaso/venoDILATES –> Reduces both preload AND Afterload
4) Respiratory Depression
B: Propofol Route of Administration: INTRAVENOUS
A: Ketamine is very strongly used as a ___Dilator
B: What does it do to these factors?
- CMRO2
- Cerebral blood flow
- Intracranial Pressure
- Blood Pressure
- HR
C: MOA for Ketamine?
D: What are its 2 indications?
A: Ketamine is very strongly used as a BRONCHODILATOR
B: What does it do to these factors?
- CMRO2 = INC
- Cerebral blood flow = INC
- Intracranial Pressure = INC
- Blood Pressure = INC
- HR = INC
C: MOA for Ketamine?
[NMDA Receptor BLOCKER]
D: ºShort Procedures ºAnesthetic Inducer
3 Side Effects of Ketamine
1) Bad Dreams
2) Salivation
3) Twitching
A: What’s the most dangerous side effect of [Intravenous Thiopental]?
B: Does Thiopental INC or DEC CMRO2?
A: Thiopental is a vasoCONSTRICTOR —> LIMB ISCHEMIA!
B: Thiopental still DEC CMRO2 in the brain
A: Which IV Anesthetic has the least cardiovascular side effects?
B: What is the primary SIDE EFFECT for this [IV Anesthetic]?
C: This [IV Anesthetic] is a _______ [vasoDilator/vasoCONSTRICTOR] and will ______[INC/DEC] CMRO2
A: ETOMIDATE
B: Adrenal Suppression: Pt will not produce [Adrenal NorEpi] and thus be UNABLE TO MAINTAIN THEIR OWN BP
C: This [IV Anesthetic] is a vasoconstrictor and will DEC CMRO2 {like Thiopental}
D-Tubocurarine
Duration of Action
> 60 min
D-Tubocurarine
Mechanism of Action
[Non-Depolarizing Muscular Nicotinic Blocker]
D-Tubocurarine
Rx
Prototype
only used in lethal injection
List the 7 Sterile Body Sites and their associated fluids
“Pts Should Produce Sterile Blood Upon Probing”
ºPericardium = Pericardial Fluid
ºSubArachnoid Space = CSF
ºPleural Space = Pleural Fluid
ºSynovium = Synovial Fluid
ºBloodstream = Blood
ºUrinary Tract = DIRECT URINE FROM BLADDER
Name 4 Dz that BacteriCidals are specifically needed to treat
“You can only kill FOME with BacteriCidals”
- [Febrile neutropenia]
- Osteomyelitis
- Meningitis
- Endocarditis
A: Name the Only 7 [Abx Classes] that are bacteriostatic
B: These all are _______ Inhibitors
“Macrolides: Some Of Them Can Limit Growth “
- Macrolides
- Streptogramins
- Oxazolidinones
- Tetracyclines
- Chloramphenicol
- Lincosamides
- ## GlycylcyclinesB: These ALL are PROTEIN SYNTHESIS Inhibitors
5 Steps for Antimicrobial Selection
CEiSM
1st: Confirm presence of actual infection
2nd: Empiric Therapy
3rd: Identify Pathogen
4th: STREAMLINE Abx therapy
5th: Monitor Therapeutic Response
- ——————————————————————————
Amphetamine
Indication (3)
- ADHD
- Narcolepsy
- Obesity
[⇪ NE ] InDirect Sympathomimetic