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The adverse reactions below, most of which are anticholinergic in nature, have been reported and within each category are listed in order of decreasing severity.
Digestive: Paralytic ileus, constipation, vomiting, nausea, dry mouth.
If dry mouth is so severe that there is difficulty in swallowing or speaking, or loss of appetite and weight, reduce dosage, or discontinue the drug temporarily.
Slight reduction in dosage may control nausea and still give sufficient relief of symptoms. Vomiting may be controlled by temporary discontinuation, followed by resumption at a lower dosage.
Toxic psychosis, including confusion, disorientation, memory impairment, visual hallucinations; exacerbation of pre-existing psychotic symptoms; nervousness; depression; listlessness; numbness of fingers.
Blurred vision, dilated pupils.
Urinary retention, dysuria.
Metabolic/Immune or Skin
Occasionally, an allergic reaction, e.g., skin rash, develops. If this cannot be controlled by dosage reduction, the medication should be discontinued.
Heat stroke, hyperthermia, fever.
To report SUSPECTED ADVERSE REACTIONS, contact Lundbeck Inc. at 1-800455-1141 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Read the Cogentin (benztropine mesylate injection) Side Effects Center for a complete guide to possible side effects
Read the Cogentin Drug Interactions Center for a complete guide to possible interactions
Last reviewed on RxList: 5/3/2013
This monograph has been modified to include the generic and brand name in many instances.
Additional Cogentin Information
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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