Your patient is experiencing extrapyramidal symptoms (EPS) from antipsychotic therapy.
You understand that the following medications are used to reverse EPS.
(Select All that Apply.).
A.
Benadryl (Diphenhydramine).
B.
Artane (Trihexyphenidyl).
C.
Flumazenil.
D.
Cogentin (Benztropine).
E.
Acetylcysteine.
The correct answer and Explanation is :
To address extrapyramidal symptoms (EPS) induced by antipsychotic medications, the following medications are used to reverse or manage these symptoms:
A. Benadryl (Diphenhydramine).
B. Artane (Trihexyphenidyl).
D. Cogentin (Benztropine).
Explanation:
Extrapyramidal symptoms (EPS) are a group of side effects that are often associated with the use of antipsychotic medications. These symptoms include tremors, rigidity, bradykinesia (slowness of movement), and tardive dyskinesia (involuntary movements). EPS result from the blockade of dopamine receptors in the central nervous system, particularly in the extrapyramidal system, which is involved in motor control.
- Benadryl (Diphenhydramine): This is an antihistamine that also has anticholinergic properties. It is effective in managing EPS, particularly in reducing acute symptoms like dystonia (muscle spasms and contractions). Diphenhydramine can help alleviate symptoms by blocking histamine and acetylcholine receptors, thereby counteracting some of the neurotransmitter imbalances caused by antipsychotic medications.
- Artane (Trihexyphenidyl): This medication is an anticholinergic agent used specifically to treat EPS. It works by restoring the balance between acetylcholine and dopamine in the brain, thus alleviating symptoms such as rigidity and tremors associated with EPS.
- Cogentin (Benztropine): Similar to trihexyphenidyl, benztropine is an anticholinergic agent used to treat EPS. It helps by blocking acetylcholine receptors, which balances the effects of dopamine blockade caused by antipsychotic medications. This helps reduce symptoms like tremors, rigidity, and bradykinesia.
C. Flumazenil is a benzodiazepine antagonist and is not used for EPS; it is used primarily to reverse benzodiazepine overdose.
E. Acetylcysteine is used primarily as a mucolytic agent and in the treatment of acetaminophen overdose, and it does not address EPS.
Thus, for managing EPS induced by antipsychotic therapy, Benadryl (Diphenhydramine), Artane (Trihexyphenidyl), and Cogentin (Benztropine) are appropriate choices.