Risperidona

About risperidone

Risperidone belongs to a group of medicines called antipsicóticos. Esses medicamentos atuam no equilíbrio das substâncias químicas no cérebro.

You may have been prescribed risperidone to relieve the symptoms of esquizofrenia or a similar mental health problem affecting your thoughts, feelings or behaviours. These problems are called psychoses. It is also given to treat aggressive behaviour problems in some people where these could become a danger to self or to others.

Risperidone can also be given by injection and there is a separate medicine leaflet for this called Injeção de Risperidona de longa duração.

Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking risperidone it is important that your doctor knows:

• Se você está grávida ou amamentando.

• Se você tem uma condição cardíaca ou doença dos vasos sanguíneos.

• Se você tiver problemas no fígado, rins ou próstata.

• Se você tiver problemas respiratórios.

• If you have any of the following: epilepsy, depression, Parkinson's disease, raised pressure in your eye (glaucoma) or myasthenia gravis, a condition which causes muscle weakness.

• Se você está prestes a fazer uma cirurgia de catarata.

• Se você já teve amarelamento da pele ou do branco dos olhos (icterícia) ou um distúrbio sanguíneo.

• Se você tem porfiria, um raro distúrbio sanguíneo hereditário.

• Se você tem um tumor na sua glândula adrenal, uma condição chamada feocromocitoma.

• Se você teve uma reação alérgica a um medicamento.

• If you are taking or using any other medicines. This includes any medicines you are taking which are available to buy without a prescription, as well as herbal and complementary medicines.
  

• Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about risperidone and it will also provide you with a full list of the side-effects which you may experience from taking it.

• Your dose will depend upon the reason you have been prescribed it, so take risperidone exactly as your doctor tells you to. You may be started on a small dose which will then be gradually increased. You will be prescribed one or two doses to take a day. Try to get into the habit of taking your doses at the same times each day, as this will help you to avoid missing any. Risperidone is not affected by food in your stomach so you can take your doses either before or after meals.

• Most people find it helps to swallow the tablet with a drink of water. If you have any difficulties swallowing, let your doctor know so that you can be prescribed tablets that dissolve in your mouth (called orodispersible tablets) or liquid medicine instead.

• If you have been given orodispersible tablets, these are made to dissolve in your mouth. Gently peel open the packaging, remove the tablet and place it on your tongue. Allow the tablet to dissolve on your tongue before you swallow.

• If you have been given liquid medicine, make sure you understand how to use the dose syringe (pipette) to measure out your doses. If you are unsure about this, you can ask your local pharmacist to show you what to do. If you would like to take the medicine added to a little liquid, you can mix it with any non-alcoholic drink except tea.

• Se você esquecer de tomar uma dose, tome-a assim que se lembrar, a menos que esteja quase na hora da próxima dose, nesse caso, pule a dose esquecida. Não tome duas doses juntas para compensar uma dose esquecida.

• Remember to keep your regular doctor's appointments so that your progress can be checked. If you are taking risperidone long-term, you may need to have some tests from time to time.

• If you drink alcohol, ask your doctor for advice about drinking while you are on risperidone. Alcohol will increase the chance that you experience side-effects and is unlikely to be recommended for you.

• If you are having an operation, tell the person carrying out the treatment which medicines you are taking. This is important because risperidone may interfere with any anaesthetic you receive. If you are having cataract surgery, it is particularly important that you tell your surgeon you are on risperidone. This is because an eye problem known as 'floppy iris syndrome' has developed in some people and your doctor will want to advise you about the risk of this.

• If you buy or take any 'over-the-counter' medicines, check with a pharmacist that they are suitable to take with risperidone.

• If you have diabetes you may need to check your blood glucose more frequently as risperidone can affect the levels of sugar in your blood. Your doctor will advise you about this.

• When risperidone has been taken for a while, stopping treatment suddenly can cause problems. If you have been taking it regularly for a year or so, your doctor will probably want you to reduce your dose gradually if this becomes necessary.

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the most common ones associated with risperidone. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.

Importante: se você apresentar sintomas como rigidez muscular, temperatura muito alta, sensação de confusão, batimento cardíaco acelerado e suor, deve contatar seu médico imediatamente. Estes podem ser sinais de uma condição rara, mas grave, conhecida como síndrome neuroléptica maligna.

Se você sentir quaisquer outros sintomas que acha que podem ser devido ao medicamento, fale com seu médico ou farmacêutico para mais conselhos.

• Mantenha todos os medicamentos fora do alcance e da vista das crianças.

• Armazene em local fresco e seco, longe de calor e luz diretos.