title: Pharmacological study of adenosine and related compounds on isolated guinea pig trachea: evidence for more than one type of purine receptor.
mesh_terms: D000241:Adenosine / Q000494:pharmacology*; D000628:Aminophylline / Q000494:pharmacology; D000818:Animals; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008297:Male; D009130:Muscle, Smooth / Q000187:drug effects*; D010276:Parasympatholytics / Q000494:pharmacology; D011687:Purines / Q000037:antagonists & inhibitors; D011955:Receptors, Drug / Q000378:metabolism*; D011983:Receptors, Purinergic; D013565:Sympatholytics / Q000494:pharmacology; D013779:Tetrodotoxin / Q000494:pharmacology; D014132:Trachea / Q000187:drug effects*
chemical_list: D010276:Parasympatholytics; D011687:Purines; D011955:Receptors, Drug; D011983:Receptors, Purinergic; D013565:Sympatholytics; D000628:Aminophylline; D013779:Tetrodotoxin; D000241:Adenosine