When any person suffer from mental condition called psychosis then doctors prescribe Anti-psychotic drugs like; HALOPERIDOL,FLUPHENAZINE.
Long term use of these drugs causes rabbit syndrome as their side effects.
Rabbit syndrome is a rare extra pyramidal side effect.
In this there is fine, rhythmic movements of mouth and lips.
Rabbit syndrome is a rare extrapyramidal side effect associated with long-term use of antipsychotic medications, particularly first-generation (typical) antipsychotics.
It’s characterized by rapid, fine movements of the lips, resembling a rabbit’s chewing motion.
The symptoms are often perioral and can be distressing. Treatment typically involves adjusting or discontinuing the offending medication or switching to a different antipsychotic with a lower risk of extrapyramidal side effects.
Informative👍
Great info🙌🏻
Nice information
Tardive dyskinesia involves irregular, dance-like movements can be seen in this syndrome.
Nice information 
Learnt a new concept. Thank you for sharing!
Welcome 
Extrapyramidal symptoms (EPS) – dystonia, parkinsonism, akathisia, tardive dyskinesia
Neuroleptic Malignant Syndrome (NMS) – life-threatening rigidity, fever, confusion
Sedation & Orthostatic hypotension – due to histamine & α1-blockade
Anticholinergic effects – dry mouth, constipation, blurred vision
Hormonal effects – ↑ prolactin → galactorrhea, gynecomastia
Cardiac risks – QT prolongation, arrhythmias
Weight gain
These are other A/E of using anti psychotic drugs
It’s quite a thing from long-term antipsychotics. Imagine fine, rhythmic lip and mouth movements, almost like a bunny’s nose twitching. A distinct side effect indeed.