Amisulpride
Schizophrenia, Postoperative Nausea and Vomiting
DRUG STATUS
Approvals
UK(BNF)
Essential Medicine
NO
Teratogenicity
Unlisted
Pharmaceutical Class
Dopamine-2 Receptor Antagonist
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Amisulpride
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Click HereSummary
Amisulpride is primarily used to treat schizophrenia and other psychotic disorders. It can also be used in lower doses to treat depression in patients who have not responded well to other antidepressants.
Amisulpride works by blocking dopamine receptors in the brain. This helps manage symptoms like hallucinations and emotional disturbances. At lower doses, it can also enhance dopamine release in areas of the brain involved in mood regulation, which helps in treating depression.
The dosage of Amisulpride depends on the type of mental health problem. For serious mental health issues, the doctor might start with a higher dose of 400-800mg a day, possibly going up to 1200mg. If the problem is mostly about lacking energy or motivation, a lower dose of 50-300mg a day is used.
Common side effects of Amisulpride include drowsiness, insomnia, headache, weight gain, and dry mouth. More significant adverse effects may include tremors, rigidity, restlessness, and sexual dysfunction.
Amisulpride should be used with caution in patients with a history of heart conditions. It should be avoided in severe liver or kidney impairment, and in pregnant or breastfeeding women unless absolutely necessary. It's also not recommended for children and teens due to insufficient safety information.
Indications and Purpose
What is Amisulpride used for?
Amisulpride is primarily used to treat schizophrenia and other psychotic disorders. It is also used in lower doses for the treatment of depression in patients who have not responded well to other antidepressants. It helps alleviate symptoms such as delusions, hallucinations, and mood disturbances.
How does Amisulpride work?
Amisulpride works by modulating dopamine receptors in the brain. It primarily acts as an antagonist at the D2 and D3 dopamine receptors. By blocking these receptors in certain areas of the brain, it helps to reduce the symptoms of psychosis and schizophrenia, such as delusions and hallucinations. At lower doses, it can also enhance dopamine release in areas of the brain involved in mood regulation, which helps in treating depression.
Is Amisulpride effective?
Evidence supporting the effectiveness of Amisulpride comes from clinical studies that show it significantly reduces symptoms of schizophrenia and acute psychosis. Research has demonstrated its efficacy in controlling positive symptoms (delusions, hallucinations) and, at lower doses, improving mood in depression. Studies indicate that Amisulpride is well-tolerated and provides therapeutic benefits comparable to other antipsychotics with fewer side effects, such as sedation or weight gain, commonly seen with other medications in the same class.
How does one know if Amisulpride is working?
The benefit of Amisulpride is evaluated through clinical assessments, including monitoring improvements in symptoms of schizophrenia, acute psychosis, and depression. Healthcare providers assess changes in mood, behavior, and cognitive function, as well as track reductions in positive and negative symptoms. Rating scales, such as the Positive and Negative Syndrome Scale (PANSS), are commonly used to measure the severity of symptoms. Regular follow-ups and side effect monitoring help determine the effectiveness and adjust the dosage if necessary.
Directions for Use
What is the usual dose of Amisulpride?
Amisulpride is a medicine for adults with mental health problems. The amount given depends on the type of problem. For serious, sudden mental health issues, the doctor might start with a higher dose (400-800mg a day), possibly going up to 1200mg. If the problem is mostly about lacking energy or motivation, a lower dose (50-300mg a day) is used. It's not used for children and teens because there isn't enough information about its safety for them.
How do I take Amisulpride?
Amisulpride can be taken with or without food. There are no specific food restrictions associated with this medication. It is important to take it exactly as prescribed by your doctor, typically in divided doses throughout the day. Ensure you follow the prescribed dosage and avoid stopping the medication abruptly without medical advice.
For how long do I take Amisulpride?
Amisulpride is a medicine, and how long you take it depends on how well it's working for you. Your doctor will decide. When you stop, you should do it slowly to avoid feeling sick.
How long does it take for Amisulpride to start working?
- Initial effects may appear within a few days to weeks.
- Full benefits often take 4–6 weeks.
How should I store Amisulpride?
Amisulpride should be stored under the following conditions:
- Keep it at room temperature, typically between 15°C to 25°C (59°F to 77°F).
- Protect it from moisture and light.
- Store it in its original packaging to maintain its stability.
- Keep it out of reach of children.
Warnings and Precautions
Who should avoid taking Amisulpride?
Amisulpride should be used with caution in patients with a history of cardiac arrhythmias or heart conditions due to the risk of QT prolongation. It is contraindicated in individuals with pheochromocytoma (a rare adrenal gland tumor) or a history of hypersensitivity to the drug. It should also be avoided in severe liver or kidney impairment. Pregnant or breastfeeding women should only use Amisulpride if absolutely necessary, as it can affect the fetus and infant. Patients with neuroleptic malignant syndrome (NMS) or tardive dyskinesia should not take this medication. Close monitoring is advised for those at risk of developing these conditions.
Can I take Amisulpride with other prescription drugs?
Amisulpride can interact with several prescription drugs. Key interactions include:
- Antipsychotics and other dopamine antagonists: Combined use can increase the risk of extrapyramidal symptoms (movement disorders) or sedation.
- Medications that prolong the QT interval: These, such as antiarrhythmic drugs (e.g., amiodarone), can increase the risk of cardiac arrhythmias, particularly torsades de pointes.
- Antihypertensives: Amisulpride may enhance the effects of blood pressure-lowering medications, increasing the risk of hypotension.
- Levodopa: Antagonistic effects with Amisulpride can reduce the efficacy of Levodopa in treating Parkinson's disease.
- Drugs affecting the CYP450 system: Amisulpride is metabolized minimally by the CYP450 enzymes, but caution should still be taken when combining with drugs that alter enzyme activity, such as ketoconazole or ritonavir.
Can I take Amisulpride with vitamins or supplements?
Most vitamins and supplements are safe, but avoid combining it with stimulants or sedatives without consulting your doctor.
Can Amisulpride be taken safely while pregnant?
Amisulpride is classified as a Category C drug for pregnancy by the FDA, which means that risk to the fetus cannot be ruled out. Animal studies have shown some adverse effects, but there are insufficient human studies to assess its safety fully. It should only be used during pregnancy if the potential benefit outweighs the risks to the fetus. Pregnant women should consult their healthcare provider before using Amisulpride.
Can Amisulpride be taken safely while breastfeeding?
Amisulpride is excreted in breast milk, but the effects on a breastfeeding infant are not well-studied. Due to the potential for serious side effects, such as sedation or movement disorders, it is generally advised to avoid using Amisulpride while breastfeeding unless absolutely necessary. If the medication is required, a healthcare provider may recommend either discontinuing breastfeeding or using an alternative treatment.
Is Amisulpride safe for the elderly?
Amisulpride is a medicine that can cause low blood pressure and drowsiness, especially in older people. Older adults with kidney problems may need a lower dose. It's also important to know that it can increase the risk of death for older people with dementia who have mental problems.
Is it safe to exercise while taking Amisulpride?
Yes, regular exercise is safe and beneficial. Monitor for dizziness or fatigue, especially if starting or adjusting your dose.
Is it safe to drink alcohol while taking Amisulpride?
No, alcohol can increase drowsiness and other side effects of Amisulpride. Avoid alcohol while on this medication.