title: Histamine blocking agent in the salivary gland homogenate of the tick Rhipicephalus sanguineus sanguineus.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology*; D004357:Drug Synergism; D006633:Histamine Antagonists; D007082:Ileum / Q000187:drug effects; D009119:Muscle Contraction / Q000187:drug effects; D012469:Salivary Glands / Q000502:physiology*; D013987:Ticks / Q000502:physiology*
chemical_list: D006633:Histamine Antagonists; D000109:Acetylcholine