No abstract available
MeSH terms
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4-Aminobenzoic Acid / pharmacology*
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Analgesics
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Animals
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Antitussive Agents / pharmacology*
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Cats
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Codeine / pharmacology
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Cough / drug therapy*
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Drug Tolerance
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Gastrointestinal Motility / drug effects
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Guinea Pigs
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Morpholines / pharmacology*
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Propionates / pharmacology*
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Rabbits
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Rats
Substances
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Analgesics
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Antitussive Agents
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Morpholines
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Propionates
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4-Aminobenzoic Acid
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Codeine