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Artane

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Artane

SIDE EFFECTS

Minor side effects, such as dryness of the mouth, blurred vision, dizziness, mild nausea or nervousness, will be experienced by 30 to 50 percent of all patients. These sensations, however, are much less troublesome with ARTANE (trihexyphenidyl) than with belladonna alkaloids and are usually less disturbing than unallenated parkinsonism. Such reactions tend to become less pronounced, and even to disappear, as treatment continues. Even before these reactions have remitted spontaneously, they may often be controlled by careful adjustment of dosage form, amount of drug, or interval between doses.

Isolated instances of suppurative parotitis secondary to excessive dryness of the mouth, skin rashes, dilatation of the colon, paralytic ileus, and certain psychiatric manifestations such as delusions, hallucinations, and paranoia, all of which may occur with any of the atropine-like drugs, have been reported rarely with ARTANE® (trihexyphenidyl)

Potential side effects associated with the use of any atropine-like drugs, including Artane (trihexyphenidyl) , include cognitive dysfunctions, including confusion and memory impairment; constipation, drowsiness, urinary hesitancy or retention, tachycardia, dilation of the pupil, increased intraocular pressure, choreiform movements, weakness, vomiting, and headache. Exacerbation of parkinsonism with abrupt treatment withdrawal has been reported. Neuroleptic malignant syndrome with abrupt treatment withdrawal has been reported (see WARNINGS, Neuroleptic Malignant Syndrome).

The occurrence of angle-closure glaucoma in patients receiving trihexyphenidyl HCl has been reported (blindness has been reported in some cases). Paradoxical sinus bradycardia, dry skin, and cycloplegia have been reported.

In addition to adverse events seen in adults, the following adverse events have been reported in the literature in pediatric patients: hyperkinesia, psychosis, forgetfulness, weight loss, restlessness, chorea, and sleep alterations.

Drug Abuse And Dependence

Although ARTANE (trihexyphenidyl) is not classified as a controlled substance, the possibility of abuse should be borne in mind due to its stimulant and euphoriant properties.

Read the Artane (trihexyphenidyl) Side Effects Center for a complete guide to possible side effects

DRUG INTERACTIONS

Cannabinoids, barbiturates, opiates, and alcohol may have additive effects with ARTANE (trihexyphenidyl) , and thus, an abuse potential exists.

Concurrent use of alcohol or other CNS depressants with ARTANE (trihexyphenidyl) may cause increased sedative effects.

Monoamine oxidase inhibitors and tricyclic antidepressants possessing significant anticholinergic activity may intensify the anticholinergic effects of antidyskinetic agents because of the secondary anticholinergic activities of these medications.

Prophylactic administration of anticholinergic agents, such as trihexyphenidyl, as a prevention of drug-induced parkinsonism during neuroleptic therapy is not recommended. There may be an increased risk for the development of tardive dyskinesia during concomitant administration of anticholinergics and neuroleptics (see PRECAUTIONS, General).

The usual dose of either trihexyphenidyl or levodopa may need to be reduced during concomitant therapy, since concomitant administration may increase drug-induced involuntary movements (see DOSAGE AND ADMINISTRATION)

Read the Artane Drug Interactions Center for a complete guide to possible interactions

Last reviewed on RxList: 3/16/2009
This monograph has been modified to include the generic and brand name in many instances.

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Artane - User Reviews

Artane User Reviews

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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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