Sizodon 1mg Tab

Uses of Sizodon 1mg Tab

Risperidone is an antipsychotic drug mainly used to treat schizophrenia (including adolescent schizophrenia), schizoaffective disorder, the mixed and manic states of bipolar disorder, and irritability in people with autism.

Side Effects of Sizodon 1mg Tab

Agitation, anxiety, dizziness, headache, somnolence; orthostatic hypotension; constipation, dyspepsia, nausea, vomiting, abdominal pain, blurred vision, erectile dysfunction, priapism, rhinitis, rash and allergy, galactorrhoea, gynaecomastia, menstrual disorders, extrapyramidal symptoms (rarely). weight gain, oedema, tardive dyskinesia. Potentially Fatal: Neuroleptic malignant syndrome may occur rarely; seizures. May cause increased mortality in elderly with dementia-related psychosis.

Drug Interactions

May antagonise the effects of levodopa and dopamine agonists. May increase serum levels of clozapine when used together. Increased serum levels of carbamazepine when used concurrently. Carbamazepine may also decrease the serum levels of risperidone. Increased risk of neuroleptic malignant syndrome when used with indinavir and ritonavir. Potentially Fatal: Risperidone may enhance the hypotensive effect of certain antihypertensives.

Mechanism of Action

Risperidone is an atypical antipsychotic. Its activity is mediated through a combination of dopamine (D2) and serotonin (5-HT2) receptor antagonism. It also exhibits affinity to adrenergic (α1 and α2) and histamine (H1) receptors. It is less likely to cause extrapyramidal effects than conventional antipsychotics. Absorption: Readily absorbed from the GI tract (oral); peak plasma concentrations after 1-2 hr. Distribution: Protein-binding: 90% (risperidone), 70% (9-hydroxyrisperidone). Metabolism: Extensively hepatic by hydroxylation. Excretion: Mainly in the urine and, to a lesser extent in the faeces.

Special Precautions

Preexisting CV diseases; discontinue use if signs and symptoms of tardive dyskinesia occur; renal and hepatic impairment, elderly, epilepsy; parkinsonism; pregnancy. May cause drowsiness and orthostatic hypotension. Gradual withdrawal is recommended. Monitor blood glucose in diabetics and patients at risk of developing diabetes.

How to Use

Take orally with food and water, as directed by your physician.

How to Store

Keep in a cool, dry place away from sunlight and moisture.

Safety Concerns

• Alcohol: Avoid during treatment.
• Breastfeeding: Not recommended.
• Pregnancy: Contraindicated.
• Liver/Kidney: Use with caution.

Content Disclaimer

This content is for educational purposes only. Please consult your doctor before use.