Intrinsic activity of labetalol on guinea-pig isolated trachea.
D000818:Animals; D004305:Dose-Response Relationship, Drug; D004983:Ethanolamines / Q000494:pharmacology*; D005260:Female; D006168:Guinea Pigs; D066298:In Vitro Techniques; D007741:Labetalol / Q000494:pharmacology*; D008297:Male; D009638:Norepinephrine / Q000378:metabolism; D014132:Trachea / Q000187:drug effects*
D004983:Ethanolamines; D007741:Labetalol; D009638:Norepinephrine