Pharmacology Flashcards
1st generation H1 blockers
Diphenhydramine, dimenhydrinate, chlorpheniramine
Used for Allergy, Motion sickness, Sleep Aid
Diphenhydramine, dimenhydrinate, chlorpheniramine
2nd generation H1 blockers
Loratidine, Fexofenadine, Desloratadine, Cetirizine
Benefits of 2nd generation over 1st generation H1 blockers
Less sedation
Expectorant; thins respiratory secretions; does not suppress cough
Guaifenesin
Mucolytic; can loosen mucous plugs in CF patients. Also an antidote for acetaminophen overdose
N-acetylcystine
Antitussive (antagonistizes NMDA glutamate receptors); Synthetic codeine analog
Dextromethorphan
Sympathomimetic alpha-agonist, nonprescription nasal decongestant
Pseudoephedrine, Phenylephrine
Reduce hyperemia, edema, and nasal decongestion, open obstructed eustachian tubes
Pseudoephedrine, phenylephrine
Illlicitly used to make methamphetamine
Pseudoephedrine
Nasal decongestant that can cause CNS stimulation/anxiety
pseudoephedrine
Toxicity of Pseudoephedrine, phenylephrine
HTN
Relaxes bronchial smooth muscle (beta-2) during acute exacerbation
Albuterol
Long-acting agents for prophylaxis of asthma
Salmeterol, Formoterol
S/E of Salmeterol and Formoterol
Tremor and arrhythmia
Likely causes bronchodilation by inhibiting phosphodiesterase, increasing cAMP levels due to decrease cAMP hydrolysis.
Theophylline (a methylxanthine)
Blocks actions of adenosine
Theophylline (a methylxanthine)
Usage is limited because of narrow therapeutic index; cardiotoxicty and neurotoxicity
Theophylline (a methylxanthine)
competitive block of muscarinic receptors; preventing bronchoconstriction, used for COPD
Ipratropium and tiotropium
Inactivate NF-KB, that transcription factor that induces the production of TNF-alpha and other inflammatory agents; 1st line therapy for chronic asthma
Corticosteroids like Beclomethasone, Fluticasone
Blocks leukotriene receptors; Good for aspirin induced asthma
Montelukast, Zafirlukast
5-lipoxygenase pathway inhibitor, blocks conversion of arachidonic acid to leukotrienes
Zileuton
Monoclonal anti-IgE antibody; blocks serum IgE from binding FceRI
Omalizumab
Used in allergic asthma resistant to inhaled steroids and long-acting beta2-agonist
Omalizumab