drugs Flashcards
(40 cards)
pseudoephedirine, phenylephrine mechanism of action
α-adrenergic agonists
pseudoephedirine, phenylephrine: use
A. to reduce 1. hyperemia 2. edema 3. nasal congestion
B. open obstructed eustachian tubes
C. pseudoephedrine ilicity used to make methamphetamine
pseudoephedirine, phenylephrine - toxicity
- hypertension
2. CNS stimulation/anxiety (pseudoephedrine)
pseudoephedrine ilicity used to make
methamphetamine
α-adrenergic agonists used as nasal decongestants
- pseudoephedirine
2. phenylephrine
dextromethorphan - use
antitussive
dextromethorphan - mechanism of action
antagonizes NMDA glutamine receptrors
dextromethorphan - structure
synthetic codeine analog
dextromethorphan - antidote for overdose
naloxone
dextromethorphan - side effects
- mild opioid effect (when used in excess)
- mild abuse potential
- serotonin syndrome (if combined with with other seretonergic agents)
dextromethorphan combined with seretonergic agents
seretonin syndrome
dextromethorphan antagonizes
NMDA glutamine receptros
expectorants drugs
- Guaifenesin
2. N-acetylcysteine
Guaifenesin - mechanisms of action
thins respiratory secreations (BUT DOES NOT SUPPRESS COUGH REFLEX)
Guaifenesin - cough reflex
Guaifenesin does not suppress cough reflex
N-acetylcysteine - mechanism of action
mucolytic
can loosen mucous plugs in COPD and CF patients by disrupting disulfide bonds
N-acetylcysteine can loosen mucus plugs by
disrupting disulfide bonds
N-acetylcysteine - used for
- cystic fibrosis
- COPD
- antidote for acetaminophen overdose
H1 blockers - mechanism of action
REVERSIBLE inhibitors of H1 histamine receptors
H1 blockers - reversible or irreversible
REVERSIBLE
H1 blockers are divided to
1st generation
2nd generation
1st generation H1 blockers - drugs
- diphenhydramine
- dimenhydrinate
- chlorpheniramine
2nd generation H1 blockers - drugs
- ADINE + cetirizine
1. loratadine
2. fexofenadine
3. desloratadine
4. cetirizine
1st generation H1 blockers - used for
- allergy
- motion
- sleep aid