title: [Effects of drugs on contraction and relaxation of the smooth muscle].
mesh_terms: D000818:Animals; D002118:Calcium / Q000502:physiology; D006168:Guinea Pigs; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects*; D009126:Muscle Relaxation / Q000187:drug effects*; D009130:Muscle, Smooth / Q000502:physiology*; D009712:Nucleotides, Cyclic / Q000502:physiology; D011817:Rabbits
chemical_list: D009712:Nucleotides, Cyclic; D002118:Calcium