Amisulpride is effective in helping symptoms such as hearing voices, loss of energy, thought disturbances, difficulties communicating with others, worry, depression, overcoming feelings of wanting to be alone as well as other symptoms of schizophrenia.
Amisulpride is a substituted benzamide. This belongs to the group of medicines known as antipsychotics. Amisulpride (sold as Solian, Sulpitac or Soltus), is an atypical antipsychotic used to treat psychosis in schizophrenia and episodes of mania in bipolar disorder. In small doses it is also used to treat depression. It was introduced by Sanofi-Aventis in the 1990s.
Amisulpride belongs to a group of medicines called antipsychotics. These medicines work on the balance of chemical substances in the brain.
You will have been prescribed amisulpride to relieve the symptoms of schizophrenia, a mental health problem which affects your thoughts, feelings or behaviours. Symptoms of schizophrenia include hearing, seeing, or sensing things that are not real, having mistaken beliefs, and feeling unusually suspicious. Amisulpride will help to ease these symptoms.
Amisulpride: a review of its use in the management of schizophrenia
Amisulpride, a substituted benzamide derivative, is a second-generation (atypical) antipsychotic. At low doses, it enhances dopaminergic neurotransmission by preferentially blocking presynaptic dopamine D2/D3 autoreceptors. At higher doses, amisupride antagonises postsynaptic dopamine D2 and D3 receptors, preferentially in the limbic system rather than the striatum, thereby reducing dopaminergic transmission. In patients with acute exacerbations of schizophrenia, the recommended dosage of amisulpride is 400 to 800 mg/day, although dosages < or =1200 mg/day may be administered. In comparative trials, amisulpride administered within this range (400 to 1200 mg/day) was as effective as haloperidol 5 to 40 mg/day, flupenthixol 25 mg/day and risperidone 8 mg/day in patients with acute exacerbations of schizophrenia with predominantly positive symptoms.
You will need to have some tests from time to time as your treatment will require careful monitoring to make sure that you get the best possible benefit from amisulpride. Remember to keep your regular doctor's appointments so that your progress can be checked. Treatment with amisulpride is usually long-term unless you experience an adverse effect. Keep taking it unless your doctor tells you otherwise. Stopping amisulpride suddenly can cause problems so your doctor may want you to reduce your dose gradually if this becomes necessary.
Extrapyramidal symptoms may occur: tremor, rigidity, hypokinesia, hypersalivation, akathisia, dyskinesia. These symptoms are generally mild at optimal dosages and partially reversible without discontinuation of amisulpride upon administration of antiparkinsonian medication. The incidence of extrapyramidal symptoms which is dose related, remains very low in the treatment of patients with predominantly negative symptoms with doses of 50-300mg/day.
Side Effects of Amisulpride
Insomnia, anxiety, agitation are common side effects (occurring in 5-10%). Somnolence, constipation, nausea, vomiting and dry mouth may occur in up to 2% of patients. Other side effects include weight gain, acute dystonia, extrapyramidal side effects, tardive dyskinesia, hypotension, bradycardia and QT prolongation.
Cautions and contra-indications
In the elderly amisulpride can cause hypotension and sedation. There are no systematic published data on efficacy in children less than 15.
Renal impairment significantly reduces the clearance and prolongs the elimination half-life of amisulpride and risperidone (Caccia, 2000). If there is renal insufficiency there should be a reduction in the dose of amisulpride. The dose should be halved if the creatinine clearance is between 30-60 ml/min and reduced to a third for clearances between 10-30 ml/min.
Prescription should be avoided if there is proven hypersensitivity to the drug, a prolactin dependent tumour, phaeochromocytoma, pregnancy or lactation.
How to store Amisulpride
- Keep all medicines out of the reach of children.
- Store in a cool, dry place, away from direct heat and light.
- Never keep out of date or unwanted medicines. Discard them safely out of the reach of children or take them to your local pharmacist who will dispose of them for you.