Respiratory Pharmacology Flashcards
1
Q
Diphenhydramine
A
- 1st generation H1 blocker
- Reversible inhibitor of H1 histamine receptor
- Uses:
- allergy
- Motion sickness
- Sleep aid
- Toxicity:
- Sedation
- Antimuscarinic
- Anti-alha-adrenergic
2
Q
Dimenhydrinate
A
1st generation H1 blocker
- Reversible inhibitor of H1 histamine receptor
- Uses:
- allergy
- Motion sickness
- Sleep aid
- Toxicity:
- Sedation
- Antimuscarinic
- Anti-alha-adrenergic
3
Q
Chlorpheniramine
A
1st generation H1 blocker
- Reversible inhibitor of H1 histamine receptor
- Uses:
- allergy
- Motion sickness
- Sleep aid
- Toxicity:
- Sedation
- Antimuscarinic
- Anti-alha-adrenergic
4
Q
Loratadine
A
- 2nd generation H1 blocker
- Reversible inhibitor of H1 histamine receptors
- Uses: allergy
- Toxicity: less sedation than 1st generation b/c less into CNS
5
Q
Fexofenadine
A
- 2nd generation H1 blocker
- Reversible inhibitor of H1 histamine receptors
- Uses: allergy
- Toxicity: less sedation than 1st generation b/c less into CNS
6
Q
Desloratadine
A
- 2nd generation H1 blocker
- Reversible inhibitor of H1 histamine receptors
- Uses: allergy
- Toxicity: less sedation than 1st generation b/c less into CNS
7
Q
Certirizine
A
- 2nd generation H1 blocker
- Reversible inhibitor of H1 histamine receptors
- Uses: allergy
- Toxicity: less sedation than 1st generation b/c less into CNS
8
Q
Isoproterenol
A
- Non specific beta agonist
- Treat asthma
- relaxes bronchial smooth muscle (beta 2)
- Adverse effect: tachycardia via beta 1
9
Q
Albuterol
A
- Beta 2 agonist
- treat asthma
- Relaxes bronchial smooth muscle via beta 2
- Use during acute exacerbation
10
Q
Salmeterol
A
- Beta 2 agonist
- Treat asthma
- long acting agent for prophylaxis
- ≥12 hour duration (versus 1-4 hours) (great for nocturnal asthma attacks)
- long duration due to high lipid solubility
- Adverse effects: tremor & arrhythmia
11
Q
Theophylline
A
- Methylaxamine (also includes caffeine and theobromine)
- Treats Asthma
- Bronchodilation by inhibiting phosphodiesterase
- Decreases cAMP hydrolysis
- Limited use due to narrow therapeutic index
- Cardiotoxicity and neurotoxicity
- Caffeine like symptoms
- Metabolized by P-450
- Blocks action of adenosine
12
Q
Ipratropium
A
- Competitive block of muscarinic receptors
- Same as atopine
- Also, tiotropium long acting
- Treats asthma
- Prevents bronchoconstriction
- Also used for COPD
13
Q
Cromolyn
A
- Prevents release of mediators from mast cells
- Effective only for prophylaxis of asthma
- Not effective during acute asthma attack
- Toxicity is rare
14
Q
Prednisone
A
- Corticosteroid
- beclomethasone, fluticasone, budesonide inhaled
- Inhibits synthesis of all cytokines
- Inactivates NF-kappa B
- NF-kappa B: transcription factor inducing TNF alpha
- 1st line therapy for chronic asthma
15
Q
Zileuton
A
- Antileukotrienes
- 5 lipoxygenase pathway inhibitor
- Blocks conversion of arachidonic acid to leukotrienes