"The U.S. Food and Drug Administration today approved the Gastric Emptying Breath Test (GEBT), a new non-invasive test to aid in the diagnosis of delayed gastric emptying, known as gastroparesis.
Current tests used to diagnose gastroparesis "...
Signs and Symptoms
The signs and symptoms of overdosage are headache; nausea; vomiting; blurred vision; dilated pupils; hot, dry skin; dizziness; dryness of the mouth; difficulty in swallowing; and CNS stimulation. A curare-like action may occur (i.e., neuromuscular blockade leading to muscular weakness and possible paralysis).
The oral LD50 is greater than 750 mg/kg in mice and greater than 1000 mg/kg in rats. Maximum Human Dose Recorded
The maximum human dose recorded is 375 to 500 mg in a 4-year-old child (no adverse effects reported) and 500 to 750 mg in a 30-year-old adult (resulted in death).
It is not known if the drug is dialyzable.
Treatment should consist of gastric lavage, emetics, and activated charcoal. Sedatives (e.g., short-acting barbiturates, benzodiazepines) may be used for management of overt signs of excitement. If indicated, an appropriate parenteral cholinergic agent may be used as an antidote.
- Obstructive uropathy (for example, bladder neck obstruction due to prostatic hypertrophy)
- Obstructive disease of the gastrointestinal tract (for example, pyloroduodenal stenosis, achalasia)
- Paralytic ileus
- Intestinal atony of the elderly or debilitated patient (See PRECAUTIONS, Geriatric Use)
- Unstable cardiovascular status in acute gastrointestinal hemorrhage
- Toxic megacolon complicating ulcerative colitis
- Myasthenia gravis
- Allergic or idiosyncratic reactions to CANTIL (mepenzolate bromide) or related compounds
Last reviewed on RxList: 5/6/2009
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