Autacoids Flashcards
Ions link to histamine release
Calcium
Physiologic antagonist during histamine release
Epinephrine
Tx for histamine release
Epinephrine, mast cell stabilizers, bronchodilators
Mast cells stabilizers
Chromolym sodium (nasalchrom) Nedrocromil sodium (tilade)
1st gen H1 overdose
Atropine like effects
2nd gen H2 overdose
Cardiac arrhythmias
DI for antihistamines H1
Drugs that inhibit cyp3A4 (antimicrobials)
Cns depressants
1st generation drugs
Ethanolamines Ethylenediamines Piperazine Alkylamines Phenothiazine Dibenzoclycoheptenes
2nd generation H1 antihistamines
Piperidines
Cetirizine
Acrivastine
Ethanolamines drugs
Carbinoxamine
Dimenhydrinate
Diphenhydramine
Doxylamine
Ethylenediamine drugs
Pyrilamine
Tripelennamine
Piperazine drugs
Hydroxyzine
Cyclizine
Meclizine
Alkylamine drugs
Brompheniramine
Chlorpheniramine
Phenothiazine drugs
Promethazine
Dibenzocycloheptenes
Cryoheptadine
Piperidines
Astemizole
Fexofenadine
Terfenadine
Loratadine
H1 antihist with serotonin blocking action
Cyproheptadine
H1 antihist with possible teratogenic effects
Piperazine drugs (hydroxyzine, cyclizine, meclizine)
H2 blocker with most side effect
Cimetidine
H2 antagonist safest
Famotidine
H2 blocker that binds to androgen receptors, effects?
Cimetidine, gynecomastia, galactorrhea
Effects of 5ht1
Vasoconstriction, behavioral actions increase happiness
Effects of 5ht2
Vasoconstriction
Effects of 5ht3
Vasoconstriction, anti-emetic, antidiarrheals
Effects of 5ht4
Anticonstipation
5ht1a agonists
Buspirone
5ht2 agonist
Ergot alkaloids (ergotamine, lysergic acid diethylamide)
5ht3 agonist
None
5ht4 agonist
Cisapride, tegaserod
5ht3 antagonist
Ondansetron, granisetron, dolasetron, cyproheptadine
5ht2 antagonist
Ketanserin, ritanserin
PGE1 analogs
Alprostadil, misoprostol
PGE2 analogs
Dinoprostone
PGF2a analogs
Carboprost
Dinoprost tromethamine
Latanoprost
PGI2 analog
Prostacyclin
Inhibits phospholipase A2
Glucocorticoids
Inhibitors of cox
Nsaids
Inhibits lipoxygenase
Zilueton
Leukotriene antagonist
Montelukast, zafirlukast,
Effects of leukotrienes
Bronchoconstriction. Edema. Increase mucus. Increase bronchial activity.
Triple response skin due to histamine
Reddening (local vasodilation) Wheal formation (capillary permeability) Flare formation (irritation of sensory nerve endings)