Frovatriptano para enxaqueca

About frovatriptan

Em pessoas com enxaqueca, it is thought that some chemicals in the brain increase in activity and as a result parts of the brain then send out confused signals which result in the symptoms of headache and sickness. Why people with migraine should develop these chemical changes is not clear, but for some people there may be things which trigger an attack, like certain foods or drinks.

Frovatriptan belongs to a class of medicines known as 5HT₁-receptor agonists. They are also known simply as triptans. Triptans work by stimulating the receptors of a natural substance in the brain, called serotonin (also called 5HT). This eases the symptoms of a migraine attack.

Frovatriptan is effective in relieving migraine attacks once an attack has started, but it does not help prevent headaches or migraine attacks from starting.

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

• Se você tem mais de 65 anos ou menos de 18 anos.

• Se você está grávida ou amamentando.

• If you have a heart condition, angina, or if you have ever had a heart attack.

• Se você tem pressão alta.

• If you have circulation problems caused by a condition called peripheral arterial disease.

• If you have ever had a stroke or a transient ischaemic attack (also referred to as a TIA or a 'mini-stroke').

• Se você tiver algum problema com o funcionamento do seu fígado.

• Se você já teve uma reação alérgica a um medicamento.

• Se você estiver tomando ou usando qualquer outro medicamento. Isso inclui quaisquer medicamentos que você esteja tomando e que estejam disponíveis para compra sem receita médica, bem como medicamentos fitoterápicos e complementares.

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

• Take frovatriptan exactly as your doctor tells you to. Take one tablet as soon as the headache phase develops. If your migraine at first improves but then comes back, you may take a second tablet, providing it is at least two hours after the initial dose. Do not take more than two tablets in 24 hours. If the first tablet has no effect, do not take a second dose for the same attack, as it is unlikely to work.

• Swallow the tablet with a drink of water. You can take frovatriptan whether or not you have recently eaten.
  

• Frovatriptan is used to treat headache pain during a migraine attack, not to stop the pain from coming on. You should wait until the headache (pain) is just beginning to develop, rather than taking it at the aura stage or when you feel that a migraine may be developing. Triptans probably work much less well if taken too early on in an attack.

• Some people may benefit from taking a non-steroidal anti-inflammatory painkiller (such as naproxen) in addition to frovatriptan. Your doctor will advise you about this if it is recommended for you. Do not take migraine treatments such as other triptans or ergotamine at the same time as frovatriptan.

• If you find that frovatriptan does not relieve your migraine, make an appointment to discuss this with your doctor, as a different triptan medicine may be more effective for you.

• It can help to keep a migraine diary. Note down when and where each migraine attack started, what you were doing, and what you had eaten that day. A pattern may emerge and it may be possible for you to avoid some of the things that trigger your migraine attacks.

• Frovatriptan is used to treat migraine attacks once the pain has started, but there are other medicines available that may help to reduce the number of migraine attacks. If you have migraines frequently, discuss this with your doctor.

• Some people who have frequent migraine attacks are in fact getting medication-induced headache. Medication-induced headache (also called medication-overuse headache) is caused by taking painkillers or triptans too often. If you use frovatriptan or painkillers on more than two days a week on a regular basis, you may be at risk of this. You should talk with your doctor if you suspect it.

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 frovatriptan. 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.

Se você sentir quaisquer outros sintomas que acha que podem ser causados pelos comprimidos, fale com seu médico ou farmacêutico para mais orientações.

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

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