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Three pharmacological subtypes of cholinergic receptors have been distinguished in Ascaris suum using a muscle contraction assay and classical pharmacological techniques. The receptor subtypes are: a B-subtype (sensitive to bephenium); an L-subtype (sensitive to levamisole and pyrantel); and an N-subtype (sensitive to nicotine and methyridine). Oxantel is a cholinergic anthelmintic that was first...
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