No abstract available
MeSH terms
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Animals
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Dose-Response Relationship, Drug
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Electric Stimulation
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Guinea Pigs
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Heart Atria / drug effects
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Heart Rate / drug effects*
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Histamine / pharmacology*
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Histamine H1 Antagonists / pharmacology
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Imidazoles / pharmacology
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In Vitro Techniques
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Male
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Promethazine / pharmacology
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Receptors, Drug*
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Stimulation, Chemical
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Thiourea / pharmacology
Substances
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Histamine H1 Antagonists
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Imidazoles
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Receptors, Drug
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Histamine
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Promethazine
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Thiourea