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Zuclopenthixol (marketed as Cisordinol, Clopixol or Acuphase) is a typical antipsychotic neuroleptic drug of the thioxanthene group. It mainly acts by antagonism of D1 and D2 dopamine receptors, though it also has some antihistamine activity. It is produced and marketed by Lundbeck pharmaceutical company.
Additional recommended knowledge
It is available in three forms:
The side effects are similar to many other typical antipsychotics, namely extrapyramidal symptoms as a result of dopamine blockade in subcortical areas of the brain. This may result in symptoms similar to those seen in Parkinsons Disease and include a restlessness and inability to sit still known as akathisia, a slow tremor and stiffness of the limbs. Zuclopenthixol is thought to be more sedating than the related flupentixol, though possibly less likely to induce extrapyramidal syproms than other typical depots. As with other dopamine antagonists, zuclopenthixol may sometimes elevate prolactin levels; this may occasionally result in amenorrhoea or galactorrhoea in severe cases. Neuroleptic malignant syndrome is a rare but potentially fatal side effect. Any unexpected deterioration in mental state with confusion and muscle stiffness should be seen by a physician.
As a long acting injection, zuclopenthixol decanoate comes in a 200 mg ampoule. Doses can vary from 50 mg 3 weekly to (rarely) 400 mg 2 weekly. In general, the lowest effective dose to prevent relapse is preferred. The interval may be shorter as a patient starts on the medication before extending to 3 weekly intervals subsequently. The dose should be reviewed and reduced in side effects occur, though in the short term an anticholinergic medication benztropine may be helpful for tremor and stiffness, while diazepam may be helpful for akathisia. 100 mg of zuclopenthixol decanoate is roughly equivalent to 20 mg of flupentixol decanoate or 12.5 mg of fluphenazine decanoate.
In acutely psychotic and agitated inpatients, 50 - 200 mg of zuclopenthixol acetate may be given for a calming effect over the subsequent three days, with a maximum dose of 400 mg in total to be given. As it is a long-acting medication, care must be taken not to give an excessive dose.
In oral form zuclopenthixol is available in 10, 25 and 40 mg tablets, with a dose range of 20 - 60 mg daily.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Zuclopenthixol". A list of authors is available in Wikipedia.|