title: Effects of methylxanthines on skeletal muscle and on respiration.
mesh_terms: D000818:Animals; D002110:Caffeine / Q000494:pharmacology*; D006636:Histamine Release / Q000187:drug effects; D009119:Muscle Contraction / Q000187:drug effects; D009132:Muscles / Q000187:drug effects*; D012119:Respiration / Q000187:drug effects*; D013805:Theobromine / Q000494:pharmacology*; D013806:Theophylline / Q000494:pharmacology*
chemical_list: D002110:Caffeine; D013806:Theophylline; D013805:Theobromine