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The treatment of overdosage should provide symptomatic and supportive care. If the amount ingested is considered dangerous or excessive, induce vomiting with ipecac syrup unless the patient is convulsing, comatose, or has lost the gag reflex, in which case perform gastric lavage using a large-bore tube. If indicated, follow with activated charcoal and a saline cathartic. Since the effects of phenylephrine HCl w/guaifenesin long acting tablet may last up to 12 hours, treatment should be continued for at least that length of time.
Phenylephrine HCl w/guaifenesin long acting tablets are contraindicated in individuals with known hypersensitivity to sympathomimetics, severe hypertension, ventricular tachycardia, or in patients receiving monoamine oxidase inhibitors.This monograph has been modified to include the generic and brand name in many instances.
Last reviewed on RxList: 12/8/2004
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