Exam 4 Drugs Flashcards
What type of drug is prednisone?
Anti-inflammatory agent: Glucocorticoids
What type of drug is Zafirlukast?
Anti-inflammatory agent: Leukotriene Modifiers
What type of drug is Cromolyn?
Anti-inflammatory agent: Mast Cell Stabilizers
What type of drug is albuterol?
Bronchodilators: Beta2 agonists
What type of drug is Theophylline?
Bronchodilators: Methylxanthines
What type of drug is Atrovent?
Bronchodilators: Anticholinergics
What type of drug is Budesonide (Plumicort)?
Anti inflammatory drugs: Glucocorticoids
What type of drug is Fluticasone (Flovent)?
Anti inflammatory drugs: Glucocorticoids
Most effective anti-asthma drugs available for long term use
Glucocorticoids
Function of glucocorticoids
Reduce airway mucous production
Increase number of bronchial beta2 receptors
Increase beta2 receptor responsiveness to beta2 antagonists
How are glucocorticoids administered
Usually inhalation
IV for acute conditions
PO for long term preventative use
Mechanism of action of glucocorticoids
Suppress inflammation:
- Decrease synthesis/production & release of inflammatory mediators
- Decrease infiltration & activity of inflammatory cells
- Decrease edema of the airway mucosa
What are glucocorticoids used for?
Prophylaxis of chronic asthma and managing COPD
What should dosing of glucocorticoids be like?
Must be on a fixed schedule, not PRN
Adverse effects of PO glucocorticoids
Adverse effects are minor when taken acutely
Long term effects:
- Adrenal suppression
- Osteoporosis
- Hyperglycemia
- PUD
Adverse effects of inhaled glucocorticoids
If pt does not gargle after use:
- Oropharyngeal candidiasis
- Dysphonia hoarseness
Promotion of bone loss
Increased risk of cataracts
Increased risk of glaucoma
In children/adolescents: can slow growth
Action of leukotriene modifiers
Suppress effects of leukotrienes
(to prevent process of bronchoconstriction and inflammatory responses - such as edema and mucous secretion)
Most commonly used leukotriene modifier
*Montelukast (Singulair)
Other types of leukotriene modifiers
Zileuton (Zyflo)
Zafirlukast (Accolate)
Adverse effects of leukotriene modifiers
Neuropsychiatric effects:
- Depression
- Suicidal thinking
- Suicidal behavior
Most common type of mast cell stabilizer
Cromolyn
What is Cromolyn used for?
Prophylaxis, not quick relief of:
- Chronic asthma
- Exercise-induced bronchospasm
- Allergic rhinitis
Action of Cromolyn
*Suppresses bronchial inflammation (not a bronchodilator)
Routes for Cromolyn
Inhalation
Nebulizer
MDI
Adverse effects of Cromolyn
Cough
Bronchospasm
Safest of all anti asthma medications
Cromolyn
Used for symptomatic relief of asthma or COPD flare ups
Bronchodilators
Types of beta2 adrenergic agonist bronchodilators
Albuterol
Salmeterol
Terbutaline
What are beta2 adrenergic agonists most effective for?
Relief of acute bronchospasm
Prevention of exercise-induced bronchospasm
How are beta2 adrenergic agonists used for asthma?
For quick relief and long term control
Mechanism of action of beta2 adrenergic agonists
Activate beta2 receptors in smooth muscle of the lung
Promote *bronchodilation, relieving bronchospasm
Two types of beta2 adrenergic agonists
Short acting beta 2 agonists (SABAs)
Long acting beta 2 agonists (LABAs)
What are SABAs used for?
PRN for attacks
What are LABAs used for?
For long term control
Types of SABAs
Albuterol
Proventil
Adverse effects of SABAs
Tachycardia
Angina
Tremor
Types of LABAs
Acilidinium bromide (Tudorza)
Salmeterol (Serevent diskus)
Adverse effects of LABAs
May increase asthma (because of LABAs)
Adverse effects of inhaled beta2-adrenergic agonists
Tachycardia
Angina
Tremor
Adverse effects of oral beta2 adrenergic agonists
Angina pectoris
Tachydysrhythmias
Tremor
Prototype Methylxanthines
Theophylline
Therapeutic window for theophylline
10-20 mcg/mL
Other Methylxanthines
Aminophylline
Dyphylline
Brand names of glucocorticoid/LABA combinations
Advair
Symbicort
Prototype anticholinergic drug
Ipitropium (Atrovent)
Adverse effect of Ipratropium (Atrovent)
Dry mouth
Sore pharynx
Initial therapy for acute severe exacerbations of asthma
Oxygen
Systemic glucocorticoid
Nebulizer high dose SABA
Drugs used for exercise induced asthma
SABAs (first choice)
Or Cromolyn
Drugs used to manage stable COPD
Bronchodilators
Glucocorticoids
Phosphodiesterase 4 inhibitors
Drugs used to manage acute COPD
SABAs (inhaled)
Alone or with inhaled Anticholinergics
Systemic glucocorticoids
Antibiotics
Supplemental oxygen
Class that Aspirin belongs to
First generation NSAIDs
Action of aspirin
Nonselective inhibitor of cyclooxygenase
Uses of aspirin
Analgesic
Antipyretic
Anti inflammatory
Suppression of platelet aggregation
Protects from MI and stroke
Adverse effects of aspirin
GI upset
GI bleeding
Renal impairment
Salicylism
Reye’s syndrome
Risk during pregnancy
Hypersensitivity reaction
Drug interactions with aspirin
Anticoagulants
Glucocorticoids
Alcohol
Ibuprofen
ACE inhibitors and ARBs
Principle uses for non aspirin first generation NSAIDs
Rheumatoid arthritis
Osteoarthritis
Class for ibuprofen
First generation NSAID
How does ibuprofen work?
Inhibits cyclooxygenase
Functions of ibuprofen
Anti inflammatory
Analgesic
Antipyretic
Uses of ibuprofen
Fever
Mild to moderate pain
Arthritis
Adverse effects of ibuprofen
Risk of GI bleeding
Use for second generation NSAIDs
Suppression of inflammation and pain
Adverse effects of second generation NSAIDs
Lower risk for GI bleeding
Impaired renal function
Hypertension
Edema
*Increased risk for MI & stroke
What class does Celecoxib (Celebrex) belong to?
Second generation COX2 inhibitor
Uses for Celebrex
Osteoarthritis
Rheumatoid arthritis
Acute pain
Dysmenorrhea
Familial adenomatious polyposis
Adverse effects of Celebrex
GI ulceration
Renal impairment
Sulfonamide allergy
*Increased risk of stroke, MI)
*Contraindicated in pregnancy
Drug interactions of Celebrex
*Warfarin
Decrease effects of furosemide
Decrease effect of ACE inhibitors
Increase lithium levels
Levels may be increased by fluconazole
Therapeutic uses of acetaminophen
Analgesic
Antipyretic
Action of acetaminophen
Inhibits prostaglandins in CNS
Adverse effects of acetaminophen
Hepatotoxicity with overdose
Hepatic necorisis
Treatment for overdose of acetaminophen
Acetylcysteine (Mucomyst)
Drug interactions of acetaminophen
Alcohol
Warfarin
Are penicillins Bactericidal or bacteriostatic?
Bactericidal
How do penicillins work?
Weaken cell wall
Cause bacteria to take up excessive water and rupture
Prototype penicillin
Penicillin G (Benzylpenicillin)
Bacteria penicillin G is effective against
Gram positive
And some gram negative
Adverse effects of penicillin G
Least toxic of all antibiotics
*Allergy
Types of broad spectrum penicillins
Ampicillin (Principen)
Amoxicillin
Adverse effects of broad spectrum penicillins
Rash
Diarrhea
How can broad spectrum penicillins be administered
PO
IV
Prototype for extended spectrum penicillins
Piperacillin
Most widely used group of antibiotics
*Cephalosporins
How are cephalosporins usually administered
Parenterally
How do cephalosporins work?
Bind to penicillin-binding proteins (PBPs)
Disrupt cell wall synthesis
Cause cell lysis
Difference between the generations of cephalosporins
Generations 3-5 can get into CSF and are stronger
Medication for patient to take if they had a mild reaction to penicillin
1st generation cephalosporin
Use of first generation cephalosporins
Prophylaxis against infection in surgical patients
Use of second generation cephalosporins
Gram negative bacteria
Use of third generation cephalosporins
*Meningitis (because can penetrate to CSF)
Use of forth generation cephalosporins
Healthcare and hospital acquired pneumonias
What are fifth generation cephalosporins used for?
MRSA
Drug interactions of cephalosporins
Probenecid
Alcohol
Drugs that promote bleeding
Calcium
Ceftriaxone
Adverse effects of cephalosporins
Allergy - hypersensitivity, rash
Bleeding
Thrombophlebitis
Class for Imipenem (Primaxin)
Carbapenems
Class for Meropenem (Merrem IV)
Carbapenems
Class for Ertapenem (Ivanz)
Carbapenems
Prototype for carbapenems
Imipenem (Primaxin)
Bacteria Imipenem is most effective against
Anaerobic bacteria
Administration of Imipenem
IV
Adverse effects of Imipenem
GI interactions
Rash
Action of vancomycin
Inhibits cell wall synthesis
Uses for vancomycin
*Severe infections only
MRSA
Staphylococcus epidermidis
C diff
Administration of vancomycin
IV (must be given slowly over 2 hours)
Adverse effects of vancomycin
Renal failure
Ototoxicity
Red man syndrome
Thrombophlebitis
Thrombocytopenia
Allergy
Class for Aztreonam (Azactam)
Monobactam
How does Aztreonam (Azactam) work?
Binds to benicillin-binding protein 3
What bacteria is Aztreonam effective against?
Narrow antimicrobial spectrum
Gram-negative aerobic bacteria only
Administration of Aztreonam
Parenterally
Class of telavancin (Vibativ)
Lipoglycoproteins
Bacteria that Telavancin (Vibativ) is effective against
Gram positive
Administration of Telavancin (Vibativ)
IV
Use of V+Telavancin (Vibativ)
Vent acquired pneumonia (VAP)
Skin infections
Adverse effects of Telavancin (Vibativ)
Prolonged QT interval
How do tetracyclines work?
Broad spectrum antibiotics
Inhibit protein synthesis
Uses of tetracyclines
Acne
Rickettsial disease
Chlamydia
Brucellosis
Cholera
Mycoplasma pneumoniae
Lyme disease
Anthrax
Helicobacter pylori
PUD
Perio
Adverse effects of tetracyclines
GI irritation
Effects of bone and teeth
Superinfection
Hepatotoxicity
Renal toxicity
Photosensitivity
Food interactions with tetracyclines
Milk product
Calcium suppliments
Iron supplements
Magnesium containing laxatives
Most antacids
What class does erythromycin belong to?
Macrolides
How does erythromycin work?
Broad spectrum antibiotic
Inhibition of protein synthesis
Usually bacteriostatic but can be bactericidal
Uses of erythromycin
If allergic to penicillin
Whooping cough
Acute diphtheria
Chlamydia
M. Pneumonia
Group A strep
Adverse effects of erythromycin
GI issues (diarrhea)
QT prolongation and sudden cardiac death
Superinfection
What class does clarithromycin (Biaxin) belong to?
Macrolides
What class does Azithromycin (Zithromax) belong to?
Macrolides
How does clindamycin (Cleocin) work?
Inhibits protein synthesis
Bacteria Clindamycin is effective against
Most anaerobic bacteria (gram pos and neg)
Uses of clindamycin
Only for certain anaerobic infections located outside of the CNS
Adverse effects of clindamycin
Clostridium difficile - associated diarrhea (CDAD)
Hepatic toxicity
Blood dyscrasias
Diarrhea
Hypersensitivity reactions
Which class does Linezolid (Zyvox) belong to?
Oxazolidinones
Types of bacteria Linezolid (Zyvox) is affective against
Against multi drug-resistant gram positive pathogens
Aerobic and gram positive bacteria
Examples of pathogens Linezolid (Zyvox) is effective against
VRE
MRSA
Side effects of Linezolid (Zyvox)
Diarrhea
Nausea and vomiting
Headache
Drug interactions of Linezolid (Zyvox)
MAOIs
Uses of Trimethoprim
*Acute and uncomplicated urinary tract infections
Adverse effects of Trimethoprim
Hematologic effects
Hyperkalemia
Use in pregnancy and lactation
Uses of trimethoprim-sulfamethoxazole
UTIs
Otitis media
Bronchitis
Shigellosis
Pneumonia
GI infection
Brand names of trimethoprim-sulfamethoxazole
Bacteria
Septra
Adverse effects of trimethoprim-sulfamethoxazole
GI: N&V
Rash
Hyperkalemia
Hypersensitivity reactions (Stevens-Johnson syndrome)
Blood dyscrasias
Kernicterus
Renal damage: crystalluria
Most commonly used aminoglycosides
Gentamicin
Tobramycin
Amikacin
Are aminoglycosides narrow or broad spectrum?
Bactericidal or bacteristatic?
Narrow
Bactericidal
Use of aminoglycosides
Aerobic gram negative bacilli
Adverse effects of aminoglycosides
*Nephrotoxicity
*Ototoxicity
Hypersensitivity reactions
Neuromuscular blockade
Blood dyscrasias
Rare, can cause paralysis or deadly respiratory depression
Use of Gentamicin (Garamycin)
Used to treat serious infections caused by aerobic gram-negative bacilli
*Pseudomonas aeruginosa
*Escherichia coli
Adverse effects of Gentamicin (Garamycin)
Nephrotoxicity
Ototoxicity
What group of antibiotic are antibiotics in that end in -mycin?
Aminoglycosides
What class does Ciprofloxacin belong to?
Fluoroquinolones
Is Ciprofloxacin narrow or broad spectrum?
Broad
Administration of Ciprofloxacin
PO
IV
Types of bacterial that Ciprofloxacin is used for
Gram negative and some gram positive
Uses of Ciprofloxacin
Drug of choice for anthrax
Respiratory infections
UTIs
GI infections
Bone, joint, skin, and soft tissue infections
Adverse effects of Ciprofloxacin
GI: N&V, diarrhea, abdominal pain
CNS: dizziness, headache, restlessness, confusion, rarely seizures
*Tendon rupture
Photosensitivity
Candida infections: pharynx and vagina
Increased risk of c. Diff
*Contraindicated for adults over 60 yrs
Adverse effects of Ciprofloxacin in older adults
Confusion
Somnolence
Psychosis
Visual disturbances
Myasthenia gravis
Drug and food interactions of Ciprofloxacin
Cationic compounds reduce absorption:
Aluminum antacids
Magnesium antacids
Iron salts, zinc salts, sucralfate
Milk and dairy products
Elevates drug levels of:
Theophylline
Warfarin
Tinidazole
Is metronidazole (Flagyl) Bactericidal or bacteristatic?
Bactericidal
Uses of Metronidazole (Flagyl)
Protozoan infections
Infections caused by obligate anaerobes
H. Pylori
CDI
Adverse effects of Metronidazole (Flagyl)
Neurotoxicity
Allergy
Superinfections
Which class does Daptomycin (Cubicin) belong to?
Cylic lipopeptides
What type of bacteria does Daptomycin (Cubicin) belong to?
Gram positive bacteria
Use of Daptomycin (Cubicin)
Bloodstream infections caused by staph aureus (MRSA) and other skin infections caused by staph
Streptococcus
Adverse effects of Daptomycin (Cubicin)
GI related
Headache
Rash
Myopathy
What is Rifampin?
Broad spectrum drug mainly used to treat TB
Class of Amphotericin B
Polyene antibiotics
What is Amphotericin B used for?
Broad spectrum antifungal agent (also used against some Protozoa)
Administration of Amphotericin B
IV
No oral admin
Uses of Amphotericin B
Drug of choice for most systemic mycoses
How does Amphotericin B work?
Binds to ergosterol in fungal cell membrane
Increases cell permeability
Cell leaks intracellular cations (esp potassium)
Is fungistatic or fungicidal
Adverse effects of Amphotericin B
*Highly toxic - Infusion reactions
*Nephrotoxicity
Hypokalemia
Bone marrow suppression
Symptoms of an infusion reaction when given Amphotericin B
Fever
Chills
Rigors
Nausea
Headache
Dose of Amphotericin B that is likely to cause nephrotoxicity
> 4g
Contraindications for Amphotericin B
Nephrotoxic drugs (aminoglycosides, cyclosporines)
NSAIDs
What should be monitored when giving Amphotericin B?
Serum creatinine every 3-4 days
Need to reduce dosage if >3.5mg/dL
Serum levels for hypokalemia
Hematocrit for bone marrow suppression (anemia)
Which class does Itraconazole (Sporanox) belong to?
Azoles
Uses of Itraconazole (Sporanox)
Lower toxicity level (alternative to ampho B)
Used for systemic mycoses
Side effects of Itraconazole (Sporanox)
Well tolerated in usual doses
Cardiosuppression (transient decrease in ventricular ejection fraction)
Liver damage
GI effects: nausea, vomiting, diarrhea
Can inhibit drug-metabolizing enzymes
When taking Itraconazole (Sporanox), lab work needs to be monitored if also on which drugs?
Digoxin
Coumadin
Cyclosporin