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Oculogyric crisis (OGC) is a rare sudden, paroxysmal, dystonic reaction that may manifest in response to specific drugs, particularly neuroleptics, or medical conditions, such as movement disorders. This neurological phenomenon is characterized by a sustained dystonic, conjugate , involuntary upward deviation of both eyes lasting seconds to hours.
Causes painful defecation, constipation; may be complicated by encopresis or fecal incontinence. Cervical dystonia (spasmodic torticollis) muscles of the neck: Causes the head to rotate to one side, to pull down towards the chest, or back, or a combination of these postures. Blepharospasm: muscles around the eyes
Acute dystonia nearly always develops a few weeks after a dopamine blocking agent/medication has begun or a substantial increase in antipsychotic dosage. An acute dystonic reaction consists of sustained, painful muscular spasms, producing twisting of the trunk/body and abnormal posture.
Medications are used to reverse the symptoms of extrapyramidal side effects caused by antipsychotics or other drugs, by either directly or indirectly increasing dopaminergic neurotransmission. The treatment varies by the type of the EPS, but may involve anticholinergic agents such as procyclidine, benztropine, diphenhydramine, and trihexyphenidyl.
Dystonia is a disorder of involuntary muscle contractions that may cause repetitive and/or abnormal movement or postures.
Often the symptoms of tardive dyskinesia are not apparent until the individual comes off of the antipsychotic drugs; however, when tardive dyskinesia worsens, the signs become visible. [24] Other dopamine antagonists and antiemetics can cause tardive dyskinesia, such as metoclopramide and promethazine, used to treat gastrointestinal disorders.
When the throat muscles are involved, this type of dystonia is called an acute laryngospasm and is a medical emergency because it can impair breathing. [4] Older antipsychotics such as haloperidol or fluphenazine are more likely to cause acute dystonia than newer agents. Giving high doses of antipsychotics by injection also increases the risk ...
Drug-induced parkinsonism, akathisia and acute dystonia; PD; Idiopathic or secondary dystonia; Overdose produces confusion, agitation and sleeplessness that can last up to or more than 24 hours. Pupils become dilated and unreactive to light. Tachycardia (fast heart beat), as well as auditory and visual hallucinations Scopolamine (L-Hyoscine) NS