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Pharmacology for NCLEX: Medications and Their Mechanisms of Action, Exams of Nursing

A comprehensive overview of various medications commonly encountered in pharmacology, focusing on their mechanisms of action, common brand names, generic names, and important nursing considerations. It covers a wide range of drug classes, including analgesics, anticonvulsants, anxiolytics, antidepressants, sedatives/hypnotics, anticoagulants, antiplatelets, diuretics, antihypertensives, cardiac glycosides, anti-diabetics, gi meds, corticosteroids, anti-infectives, and respiratory medications. Particularly useful for students preparing for the nclex exam, as it highlights key concepts and clinical applications of these medications.

Typology: Exams

2024/2025

Available from 02/04/2025

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neurotransmitter
N
EED
TO
KNOW
MEDICATIONS
FOR
NCLEX
ANALGESICS
Opioids
pain threshold by altering pain
perception
ANTICONVULSANTS
interval
between
seizures
ANXIOLYTICS
Azaspirodecanedione
derivatives
anxiety.
Action
unknown,
thought
to
act
by
the amount/action of serotonin in certain parts
of
the brain.
Common
Brand
Names Generic
Names
Buspar
Buspirone
Hydrochloride
*Neurontin is sometimes prescribed for
chronic pain neuropathy
*Monitor blood levels: Dilantin, Tegretol,
and Depakote
ANTIDEPRESSANTS
SSRIs
Act
by
inhibiting
serotonin
reuptake
in
CNS
BENZODIAZEPINES
(
Pam
&
Lam)
Enhance/facilitate GABA, an inhibitory
Common
Brand
Names Generic
Names
Demerol
Meperidine
HCL
Dilaudid Hydromorphone
Duragesic,
Sublimaze Fentanyl
Morphine
Sulfate
Morphine
Sulfate
Vicodin,
Norco Hydrocodone
Common
Brand
Name Generic
Name
Dilantin Phenytoin
Neurontin
Gabapentin
Tegretol
Carbamazepine
Depakote
Valproic
Acid
Common
Brand
Names Generic
Names
Elavil Amitriptyline
Common
Brand
Names Generic
Names
Ativan
Lorazepam
Valium Diazepam
Xanax Alprazolam
Common
Brand
Names Generic
Names
Celexa Citalopram
Effexor Venlafaxine
Lexapro
Escitalopram
Oxalate
Paxil Paroxetine
Prozac Fluoxetine
Zoloft Sertraline
pf3
pf4
pf5
pf8

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neurotransmitter

NEED TO KNOW MEDICATIONS FOR

NCLEX

ANALGESICS

  • Opioids
  • pain threshold by altering pain

perception

ANTICONVULSANTS

❧ interval between seizures

ANXIOLYTICS

  • Azaspirodecanedione derivatives
  • anxiety. Action unknown, thought to act by

the amount/action of serotonin in certain parts of

the brain.

Common Brand Names Generic Names

Buspar Buspirone Hydrochloride

❧ *Neurontin is sometimes prescribed for

chronic pain neuropathy

❧ *Monitor blood levels: Dilantin, Tegretol,

and Depakote

ANTIDEPRESSANTS

❧ SSRIs

❧ Act by inhibiting serotonin reuptake in CNS

BENZODIAZEPINES ( Pam & Lam)

  • Enhance/facilitate GABA, an inhibitory

Common Brand Names Generic Names

Demerol Meperidine HCL

Dilaudid Hydromorphone

Duragesic, Sublimaze Fentanyl

Morphine Sulfate Morphine Sulfate

Vicodin, Norco Hydrocodone

Common Brand Name Generic Name

Dilantin Phenytoin

Neurontin

Gabapentin

Tegretol Carbamazepine

Depakote Valproic Acid

Common Brand Names Generic Names

Elavil Amitriptyline

Common Brand Names Generic Names

Ativan Lorazepam

Valium Diazepam

Xanax Alprazolam

Common Brand Names

Generic Names

Celexa Citalopram

Effexor Venlafaxine

Lexapro Escitalopram Oxalate

Paxil Paroxetine

Prozac Fluoxetine

Zoloft Sertraline

SEDATIVES/HYPNOTICS

ANTICOAGULANTS

❧ Interferes with blood clotting processes. Used to prevent thrombus and embolus

ANTIPLATELETS

❧ Interferes with the 1 ST step in the clotting process: platelet aggregation

DIURETICS

❧ fluid volume in the body **NI= monitor daily weight under standard conditions, assess BP, I&O, presence of edema

LOOP DIURETICS

❧ Inhibit reabsorption of Na+, CL-, K+ and H2O (in loop of Henle), but also in proximal and distal renal tubules

Thiazide Diuretics

  • excretion of Na+, Cl-, K+,

H2O in distal tube and ascending loop of Henle ❧ *Pepto-Bismol contains aspirin

POTASSIUM-SPARING DIURETICS

❧ Contains aldosterone at receptor sites in distal tubule; excrete Na+, Cl-, H2O, not K+ Common Brand Names Generic Names Ambien Zolpidem Tartrate Lunesta Eszopiclone Common Drug Names Generic Names Bumex Bumetanide Demadex Torsemide Lasix Furosemide Common Brand Names Generic Names Coumadin Warfarin Lovenox Enoxaparin Heparin Heparin Sodium-from beef/pork Common Brand Names Generic Names Diuril Chlorothiazide Sodium Hydrodiuril, HCTZ Hydrochlorothiazide Zaroxolyn Metolazone Common Brand Names Generic Names ASA-aspirin Acetylsalicylic Acid Plavix Clopidogrel Common Brand Names Generic Names Aldactone Spironolactone Dyrenium Triamterene

ARBS-(SARTAN)

  • block binding of angiotensin II at

the receptor site, preventing

vasoconstriction & aldosterone

secreting effect usually caused by

angiotensin II

NITRATES

❧ Peripheral and coronary vasodilators.

❧ Treat/prevent angina, BP, preload/afterload,

myocardial O2 demand.

❧ **NI=rotate transdermal patches/remove after 12-14 hours

=(“patch free” interval of 10-12 hours daily)

Brand Names Generic Names

Atacand Candesartan

Cozaar Losartan

Diovan Valsartan

CARDIAC GLYCOSIDES

❧ Positive inotropes (improve contractility and

cardiac output)

❧ Negative dromotropic slow AV conduction

rate.

❧ Negative chronotropes HR & improve

cardiac output.

❧ Act as antiarrhythmic via tropic effect.

❧ **NI=Monitor K+ level, S/S toxicity

Brand Names Generic Names

Lanoxin Digoxin

❧ *Monitor Dig & K+ level, S/S toxicity

BIGUANIDES

  • hepatic glucose production &

intestinal absorption of glucose

  • improves insulin sensitivity

(tissue response to insulin)

Brand Names Generic Names

Glucophage Metformin

  • *Initial drug therapy for newly DX T2DM.
  • *Most common side effect: GI.
  • *Rare side effect: Lactic acidosis

❧ *Check Potassium Level

ANTI-DIABETICS

  • Sulfonylureas
  • Promotes insulin secretion by the

pancreas; tissue response to insulin

Brand Names Generic Names

Amaryl Glimepiride

Diabeta

Glynase

Micronase

Glyburide

Glucotrol (XL) Glipizide

GLITAZONES-(GLITAZONE)

❧ Decrease insulin resistance

Brand Names Generic Names

Actos Pioglitazone

Avandia Rosiglitazone

❧ *Edema; HF secondary to renal retention of fluid

GLIPTINS (DPP-4 Enzyme Inhibitors)

❧ levels of incretins-naturally occurring substances control

blood sugar by insulin release, especially after a meal.

Brand Names Generic Names

Januvia Sitagliptin

Common Brand Names Generic Names

Nitro BID Tridil

Transderm Nitro

Nitrostat

Nitroglycerin

Imdur Isosorbide Mononitrate

Isorbid

Isordil

Sorbitrate

Isosorbide Dinitrate

*Sometimes used with diabetic g

sites,gastric acid secretion

PROTON PUMP INHIBITORS (PPI)

  • Block final step of gastric acid production
  • Ulcer-reducing

H2-HISTAMINE RECEPTOR ANTAGONISTS

  • Inhibit histamine at histamine H2-receptor

ANTIEMETICS

  • Act by /preventing

nausea & vomiting

ANTILIPIDEMICS

❧ STATINS (HMG-COA REDUCTASE INHIBITORS)

❧ Inhibits HMG-CoA reductase, an early step in

cholesterol production

MISCELLANEOUS ANTILIPIDEMICS

❧ *Rhabdomyolysis, Hepatotoxicity

GI MEDS

❧ Non-absorbable medications used

prophylactically to treat/prevent

ulcers and GERD

❧ GI Protectant

❧ Mixes with gastric acid to form a

protective coating of gastric mucosa

Brand Names Generic Names

Carafate Sucralfate

GI STIMULANT

Brand Names Generic Names

Reglan Metoclopramide

Brand Names Generic Names

Zetia

  • Selective cholesterol

absorption inhibitor

Ezetimibe

  • Inhibits absorption of

cholesterol by small

intestine

TriCor

  • Fibric Acid Derivative

Fenofibrate

  • triglyceride

synthesis in liver

Lopid

  • Fibric Acid Derivative

Gemfibrozil

  • triglyceride

synthesis in liver

Questran

  • Bile acid sequestrant

(food additive improving

quality)

Cholestyramine

  • Binds bile acids,

impeding absorption

(elimination in feces)

Brand

Names Generic Names

Nexium Esomeprazole

Prilosec Omeprazole

Protonix Pantoprazole

Brand

Names Generic Names

Pepcid Famotidine

Zantac Ranitidine

Brand

Names Generic Names

Phenergan Promethazine

Zofran Ondansetron

Brand Names Generic Names

Crestor Rosuvastatin

Lipitor Atorvastatin

Zocor Simvastatin

PENICILLINS

Brand Names Generic Names

Amoxil Amoxicillin

Omnipen Ampicillin

Unipen Nafcillin

Pipracil Piperacillin

Zosyn Piperacillin/Tazobactam

SULFONAMIDES

Brand Names Generic Names

Bactrim

Bactrim DS

Septra

SMZ-TMP

Trimethoprim-Sulfa

methoxazole

*Avoid or use with extreme caution if allergic to sulfa:

Erythromycin-Sulfisoxazole, Sulfasalazine, Dapsone,

Sulfonamides, Celebrex, Imitrex, Lasix,

Hydrochlorothiazide HCTZ

VANCOMYCIN

Brand Names Generic Names

Vancocin

Vancomycin

Hydrochloride

❧ *Nephrotoxicity, Ototoxicity, Red-Man Syndrome

❧ *Peak: 30 minutes to 1 hour after administration.

❧ *Trough: 30 minutes before the next dose.

CARBAPENEMS

Brand Names Generic Names

Invanz Ertapenem

Merrem Meropenem

Primaxin Imipenem

FLUOROQUINOLONES (oxacin)

Brand Names Generic Names

Cipro Ciprofloxacin

Levaquin Levofloxacin

  • *Tendon rupture.
  • *Adjust dosage for renal patients.

TETRACYCLINES

Brand Names Generic Names

Tetracycline Tetracycline

Vibramycin Doxycycline

INSULINS

  • blood glucose by transporting glucose into cells
  • promoting conversion of glucose to glycogen
  • inhibiting the liver from changing glycogen to gluc

I

ose Names Onset Peak Duration

Types of Insulins Names

Rapid-Acting

Insulin Lispro-Humalog

Insulin Aspart-Novolog

Regular Insulin-Humulin R

  • Regular insulin is the

Short- Acting

only one given IV

  • Concentrated

insulin-Insulin U-

ntermediate- Acting

NPH-Humulin N, Novolin R

Insulin Glargine-Lantus

Long-Acting

  • Cannot mix with

others

Insulin Detemir-Levemir

NPH/REG

  • Humulin 50/
  • Humulin 70/
    • Novolin 70/

Premixed Aspart

protamine/aspart

  • Novolog Mix 70/

Lispro protamine/lispro

  • Humalog Mix 75/

Lispro

(Humalog)

5m 60-90min 4-6h

Aspart

(Novolog)

10-20m 1-3h 3-5h

Regular

(Humulin R)

SQ: 30-60m

IV: 10-30m

SQ: 2-4h

IV: 15-30m

SQ: 5-7h

IV: 30-60m

U- 500 2-3h 5-7h

NPH

(Humulin N, Novolin R)

8-12h 18-24h

Glargine

(Lantus)

None 24h

Detemir

(Levemir)

3-14h 24h

NPH

(Humulin 50/50,

Humulin 70/30,

Novolin 70/30)

4-8h 24h

Apart

Protamine/aspart

(Novolog mix 70/30)

1-4h 24h

Lispro

Protamine/lispro

(Humalog mix 75/25)

2.8h 24h