Histamine Hrreceptor antagonists

The answer is e. (Hardman, p 587. Katzung, p 270.) Chlorpheniramine is a competitive Hi-re cep tor antagonist that inhibits most responses of smooth muscle to histamine Hrreceptor antagonists have negligible effects on II2 or II3 receptors... [Pg.196]

Cyclizine, l-(diphenyhnethyl)-4-methylpiperazine (hydrochloride or tartrate), histamine Hrreceptor antagonist sedative and antiemetic [82-92-8], Deoxyaspergillic acid (H 50, 158), 6-.scc-butyl-3-isobutyl-2(l//)-pyrazinonc, an Aspergillus sp metabolite 121641 -71-4],122 980 Deoxymutaaspergillic acid (H 158, 193), 3-isobutyl-6-isopropyl-2(l//)-pyrazi-none, an Aspergillus sp metabolite [22318-05-4],122... [Pg.241]

Flunarizine, l-[bis(p-fluorophenyl)methyl]-4-(3-phenylallyl)piperazine (and hydrochloride), histamine Hrreceptor antagonist and Ca-channel blocker vasodilator and antimigraine agent [52468-60-7],... [Pg.242]

Action NSAID Dose 1 gtt qicl Caution [C, +] Disp Opthal soln SE Local irritation EMS None OD Unlikely to cause life-threatening Sxs Ketotifen (Zaditor) [Ophthalmic Anrihistamine/Histamine Antagonist Mast Cell Stabilizer] Uses Allergic conjunctivitis Action Hrreceptor antagonist, mast cell stabilizer Dose Adults Peds. 1 gtt in eye(s) q8—12h Caution [C, /—] Disp Soln SE Local irritation, HA, rhinitis EMS None OD Unlikely to cause life-threatening Sxs... [Pg.200]

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