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> Risperidone - Oral

Risperidone - Intramuscular - Patient Medicine Information

> Why do I need this medicine?
> How do I use this medicine?
> What should I do if I have forgotten to use this medicine?
> When should I not use this medicine?
> What should I take note of while using this medicine?
> What side effects could I experience?
> Can I use this with other medicines?
> What special dietary instructions should I follow?
> How should I store this medicine?

 
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Why do I need this medicine?

Risperidone Intramuscular injection is used to treat schizophrenia (an illness that causes changes in perception, thoughts and behaviour). It helps to relieve symptoms common in schizophrenia, such as distorted thinking and emotional instability.

Risperidone Intramuscular injection is also used on its own or together with other medicines for the treatment of a dysfunctional mood condition called bipolar disorder.

How do I use this medicine?

Risperidone Intramuscular injection is to be injected into the buttock muscles.

Your doctor or nurse will administer the injection for you. This injection will be made only ONCE every 2 weeks.

You may need to use Risperidone Intramuscular injection for some time before the full benefits can be felt. Do not be discouraged if you do not feel better soon after the injection has been given. It may take about 3 weeks for this injection to take effect. This is because the medicine is being released slowly from the site of injection. Over the long-term, this slow-release injection helps to give better control of your condition.

It is important that you continue with the injections even when you feel well. Do not stop using Risperidone Intramuscular injection unless your doctor has decided to do so. If this medicine is stopped suddenly, you may feel unwell or your condition may worsen. When your doctor decides that you do not need Risperidone Intramuscular injection anymore, he will usually reduce your dose slowly.

What should I do if I have forgotten to use this medicine?

Ensure that you keep all appointments with your doctor so that you do not miss any doses. Your doctor also needs to regularly monitor your response to Risperidone.

If you miss an appointment or miss an injection, alert your doctor or nurse. A replacement appointment or injection should be given as soon as possible.

DO NOT double a dose under any circumstances.

When should I not use this medicine?

Risperidone is not suitable for patients with dementia-related psychosis.

What should I take note of while using this medicine?

Inform your doctor if you have:

- fits or a history of fits (epilepsy)
- Parkinson's disease
- liver or kidney disease
- heart disease, including heart rhythm problems
- high blood pressure
- blood disorders
- glaucoma (high pressure in the eyes)
- breast cancer or tumours dependent on a hormone called prolactin
- risk factors for stroke
- diabetes
- suicidal thoughts

Let your doctor know if you are pregnant or breastfeeding.

Risperidone Intramuscular injection may affect how your body adjusts to temperature changes. Avoid exposure to very cold or very hot environments.

Keep your appointments with your doctor. Your doctor needs to monitor your condition and check your response to the medication regularly. He may need to do routine blood tests such as fasting blood glucose and complete blood count while you are being treated with Risperidone Intramuscular injection.

What side effects could I experience?

Risperidone may cause dizziness, drowsiness, and blurred vision. If affected, do not drive or take part in any activity in which you need to be alert.

You may feel dizzy when getting up from a sitting or lying down position, especially if this is your first Risperidone Intramuscular injection, or if your doctor is still adjusting your dose. This dizziness is normal and should improve gradually as you get used to the medicine. It will help if you get up slowly from a sitting or lying down position.

Some common side effects with Risperidone Intramuscular injection include difficulty sleeping, headache, tiredness, weakness, agitation, anxiety, mood changes, constipation, increased appetite, weight gain, loss of bladder control, common cold, blocked nose, nausea, vomiting and stomach discomfort. There may also be some discomfort or pain at the injection site.

Other side effects may need immediate medical help. Alert your doctor immediately if you experience any of the following:

- fast or irregular heartbeat
- chest pain
- muscle stiffness, unexplained high fever
- uncontrolled muscle movements of your body or face, such as sticking out of the tongue, smacking of the lips

Inform your doctor if any of these side effects do not go away or are severe, or if you experience other side effects.

Can I use this with other medicines?

Inform your doctor and pharmacist if you are taking any of these medicines:

- medicine for cold or allergy e.g. antihistamines
- medicines for depression e.g. fluoxetine, paroxetine
- medicines for mood disorder e.g. clozapine
- fits (epilepsy) medicines e.g. phenytoin, carbamazepine
- medicines for Parkinson's disease e.g. levodopa
- medicines that lower blood pressure
- diuretics (water pills) e.g. furosemide
- medicines for irregular heart rhythm e.g. quinine, disopyramide, procainamide, amiodarone
- certain antibiotics e.g. rifampicin

This list does not include all medicines that may interact with Risperidone.

Always notify your doctor or pharmacist if you are taking any other medicines, including herbal tonics such as traditional Chinese medicine, supplements and medicines that you buy without a prescription.

What special dietary instructions should I follow?

Avoid alcohol. Alcohol will worsen the dizziness and drowsiness caused by Risperidone Intramuscular injection.

How should I store this medicine?

Store in a cool, dry place away from the reach of children.

Risperidone Intramuscular injection should be stored in the refrigerator between 2-8 degrees Celsius. Always keep the vial in the original carton.

Medicines must not be used past the expiry date.

This information is independently developed by MIMS based on Risperidone - Intramuscular and is provided for your reference only. It is not a replacement for and should only be used in conjunction with full consultation with a licensed healthcare professional, the information provided by your pharmacist and/or the manufacturer of the medication. It may not contain all the available information you require and cannot substitute professional medical care, nor does it take into account all individual circumstances. Although great effort has been made to ensure content accuracy, we shall not be held responsible or liable for any claims or damages arising from the use or misuse of the information contained herein, its contents or omissions, or otherwise. Copyright © 2019 MIMS. All rights reserved. Powered by MIMS.com

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