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Indications & Uses
Residon is indicated for:
Pharmacology
Risperidone is a selective monoaminergic antagonist that binds with high affinity to serotoninergic 5-HT2 and dopaminergic D2 receptors. It also binds to alpha1 adrenergic receptors, and with lower affinity to H1 histamine and alpha2 adrenergic receptors, while showing no affinity for 8 cholinergic receptors. As a potent D2 antagonist, risperidone improves the positive symptoms of schizophrenia while causing less depression of motor activity. Its balanced antagonism of central serotonin and dopamine may lower the risk of extrapyramidal side effects and extend its therapeutic benefit to the negative and affective symptoms of schizophrenia as well.
Dosage Reference
Reference Information Only
Dosages shown are general references from official sources. Always consult your doctor or pharmacist for personalized dosing.
Adults:
Psychoses: 2 mg in 1 to 2 divided doses on the first day, then 4 mg in 1 to 2 divided doses on the second day (slower titration is appropriate in some patients). The usual dose range is 4 to 6 mg daily. Doses above 10 mg daily should be used only if the benefit is considered to outweigh the risk (maximum 16 mg daily). Elderly patients, or those with hepatic or renal impairment, should start with 1 mg daily in two divided doses, increased in steps of 1 to 2 mg twice daily. Not recommended for children under 15 years.
Mania: Initially 2 mg once daily, increased if necessary in steps of 1 mg daily. The usual dose range is 1 to 6 mg daily. Elderly patients, or those with hepatic or renal impairment, should start with 1 mg daily in two divided doses, increased in steps of 1 to 2 mg twice daily.
Schizophrenia: Risperidone should generally be started at 1 mg BID (twice daily), with increases in increments of 1 mg BID on the second and third day, as tolerated, to reach a target dose of 3 mg BID by the third day. Further dosage adjustments, if indicated, should generally be made at intervals of not less than 1 week. When dosage adjustments are necessary, small increments or decrements of 1 to 2 mg are recommended.
Side Effects
Reported side effects include insomnia, agitation, anxiety and headache. Less commonly, drowsiness, impaired concentration, fatigue, blurred vision, constipation, nausea and vomiting, dyspepsia, abdominal pain, hyperprolactinaemia, urinary incontinence, tachycardia, hypertension, oedema, rash, rhinitis, cerebrovascular accident, neutropenia and thrombocytopenia have been reported.
Cautions & Contraindications
Warnings & Precautions
Use with special care in people with existing heart or blood vessel disease, kidney or liver problems, epilepsy, or Parkinson's disease, in older adults, and during pregnancy. If signs or symptoms of tardive dyskinesia (involuntary, repetitive movements) appear, treatment should be stopped.
Contraindications
Risperidone should not be used by anyone who has a known allergy (hypersensitivity) to the product.
Pregnancy & Breastfeeding
In experimental animals, Risperidone did not cause direct reproductive toxicity, although some indirect effects mediated through prolactin and the CNS were observed. No study has found any teratogenic effect of Risperidone. The safety of Risperidone during human pregnancy has not been established. Animal studies show that Risperidone and 9-hydroxyrisperidone pass into breast milk, and this has also been demonstrated in human breast milk. For this reason, women taking Risperidone should not breastfeed.
⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.
Storage
Store Risperidone at a temperature no higher than 30°C. Keep it away from light, and keep it out of the reach of children.
Drug Interactions
Common questions about Residon 1 mg/ml
What is Residon 1 mg/ml Oral Solution?
Residon 1 mg/ml Oral Solution is a medicine that contains Risperidone. It is made by Healthcare Pharmaceuticals Ltd. It belongs to the Atypical neuroleptic drugs group of medicines.
What is Residon used for?
Residon is used for: Schizophrenia, Bipolar Disorder.
What are the side effects of Residon?
Reported side effects include insomnia, agitation, anxiety and headache. Less commonly, drowsiness, impaired concentration, fatigue, blurred vision, constipation, nausea and vomiting, dyspepsia, abdominal pain, hyperprolactinaemia, urinary incontinence, tachycardia, hypertension, oedema, rash, rhinitis, cerebrovascular accident, neutropenia and thrombocytopenia have been reported.
Can I take Residon during pregnancy or while breastfeeding?
In experimental animals, Risperidone did not cause direct reproductive toxicity, although some indirect effects mediated through prolactin and the CNS were observed. No study has found any teratogenic effect of Risperidone. Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.
How should I store Residon?
Store Risperidone at a temperature no higher than 30°C. Keep it away from light, and keep it out of the reach of children.
Can I take other medicines with Residon?
Some medicines can interact with Risperidone, for example: Levodopa + Carbidopa, Dextromethorphan + Phenylephrine + Triprolidine, Carbamazepine, Clozapine, Levodopa, Carbidopa + Levodopa. Tell your doctor or pharmacist about every medicine you take.
Do I need a prescription for Residon?
Residon is a prescription (Rx) medicine. Take it as your doctor advises.