Donnatal Extentabs

Overdosage
Contraindications

OVERDOSE

The signs and symptoms of overdose are headache, nausea, vomiting, blurred vision, dilated pupils, hot and dry skin, dizziness, dryness of the mouth, difficulty in swallowing, and CNS stimulation. Treatment should consist of gastric lavage, emetics, and activated charcoal. If indicated, parenteral cholinergic agents such as physostigmine or bethanechol chloride should be added.

CONTRAINDICATIONS

Glaucoma, obstructive uropathy (for example, bladder neck obstruction due to prostatic hypertrophy); obstructive disease of the gastrointestinal tract (as in achalasia, pyloroduodenal stenosis, etc.); paralytic ileus, intestinal atony of the elderly or debilitated patient; unstable cardiovascular status in acute hemorrhage; severe ulcerative colitis especially if complicated by toxic megacolon; myasthenia gravis; hiatal hernia associated with reflux esophagitis.

Donnatal Extentabs® (belladonna alkaloids, phenobarbital) is contraindicated in patients with known hypersensitivity to any of the ingredients. Phenobarbital is contraindicated,in acute intermittent porphyria and in those patients in whom phenobarbital produces restlessness and/or excitement.

Last reviewed on RxList: 4/23/2008
This monograph has been modified to include the generic and brand name in many instances.

Overdosage
Contraindications
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